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  1. .gitattributes +118 -0
  2. .gitignore +14 -0
  3. CONTRIBUTING.md +28 -0
  4. LICENSE +202 -0
  5. README.md +5 -5
  6. package.json +18 -0
  7. public/anonymization/annotations.js +38 -0
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  25. public/data-leak/script.js +296 -0
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  27. public/dataset-worldviews/README.md +6 -0
  28. public/dataset-worldviews/img/confusing_pointiness.png +3 -0
  29. public/dataset-worldviews/img/confusing_pointiness.svg +203 -0
  30. public/dataset-worldviews/img/confusing_shape_name.png +3 -0
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  36. public/dataset-worldviews/img/dataset-worldviews-shareimg.png +3 -0
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CONTRIBUTING.md ADDED
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+ },
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+ "license": "MIT"
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+ <!--
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+ @license
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+ Copyright 2020 Google. All Rights Reserved.
4
+
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+ Licensed under the Apache License, Version 2.0 (the "License");
6
+ you may not use this file except in compliance with the License.
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+ You may obtain a copy of the License at
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+
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+ http://www.apache.org/licenses/LICENSE-2.0
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+
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+ Unless required by applicable law or agreed to in writing, software
12
+ distributed under the License is distributed on an "AS IS" BASIS,
13
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ See the License for the specific language governing permissions and
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+ limitations under the License.
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+ -->
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+
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+ <!DOCTYPE html>
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+
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+ <html>
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+ <head>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1">
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+
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+ <link rel="apple-touch-icon" sizes="180x180" href="https://pair.withgoogle.com/images/favicon/apple-touch-icon.png">
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+ <link rel="icon" type="image/png" sizes="32x32" href="https://pair.withgoogle.com/images/favicon/favicon-32x32.png">
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+ <link rel="icon" type="image/png" sizes="16x16" href="https://pair.withgoogle.com/images/favicon/favicon-16x16.png">
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+ <link rel="mask-icon" href="https://pair.withgoogle.com/images/favicon/safari-pinned-tab.svg" color="#00695c">
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+ })()
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+ </script>
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+
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+ <title>How randomized response can help collect sensitive information responsibly</title>
39
+ <meta property="og:title" content="How randomized response can help collect sensitive information responsibly">
40
+ <meta property="og:url" content="https://pair.withgoogle.com/explorables/anonymization/">
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+
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+ <meta name="og:description" content="The availability of giant datasets and faster computers is making it harder to collect and study private information without inadvertently violating people's privacy.">
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+ <meta property="og:image" content="https://pair.withgoogle.com/explorables/images/anonymization.png">
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+ <meta name="twitter:card" content="summary_large_image">
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+
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+ <link rel="stylesheet" type="text/css" href="../style.css">
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+
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+ <link href='https://fonts.googleapis.com/css?family=Roboto+Slab:400,500,700|Roboto:700,500,300' rel='stylesheet' type='text/css'>
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+ <link href="https://fonts.googleapis.com/css?family=Google+Sans:400,500,700" rel="stylesheet">
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+
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+ <meta name="viewport" content="width=device-width">
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+ </head>
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+ <body>
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+ <div class='header'>
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+ <div class='header-left'>
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+ <a href='https://pair.withgoogle.com/'>
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+ <img src='../images/pair-logo.svg' style='width: 100px'></img>
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+ </a>
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+ <a href='../'>Explorables</a>
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+ </div>
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+ </div>
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+
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+ <h1 class='headline'>How randomized response can help collect sensitive information responsibly</h1>
64
+ <div class="post-summary">Giant datasets are revealing new patterns in <a href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5070532/'>cancer</a>, <a href='https://opportunityinsights.org/national_trends/'>income inequality</a> and other important areas. However, the widespread availability of fast computers that can cross reference public data is making it harder to collect private information without inadvertently violating people's privacy. Modern randomization techniques can help preserve anonymity. </div>
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+ <link rel="stylesheet" href="style.css">
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+ <link rel="stylesheet" href="style-graph-scroll.css">
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+
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+ <div id='container' class='container-1'>
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+ <div id='graph'></div>
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+ <div id='sections'>
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+ <div>
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+
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+ <h3>Anonymous Data</h3>
74
+
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+ <p>Let's pretend we're analysts at a small college, looking at anonymous survey data about plagiarism.
76
+
77
+ <p>We've gotten responses from the entire student body, reporting if they've ever <span class='highlight purple'>plagiarized</span> or <span class='highlight grey'>not</span>. To encourage them to respond honestly, names were not collected.
78
+ <p>
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+
80
+ <p class='note'>The data here has been randomly generated</p>
81
+ </div>
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+
83
+
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+ <div>
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+ <p>On the survey students also report several bits of information about themselves, like their age...
86
+ </div>
87
+
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+
89
+ <div>
90
+ <p>...and what state they're from.
91
+
92
+ <p>This additional information is critical to finding potential patterns in the data—why have so many first-years from New Hampshire plagiarized?
93
+ </div>
94
+
95
+
96
+ <div>
97
+ <h3>Revealed Information</h3>
98
+ <p>But granular information comes with a cost.
99
+
100
+ <p>One student has a <span class='highlight box square orange'>unique</span> age/home state combination. By searching another student database for a 19-year old from Vermont we can identify one of the plagiarists from supposedly anonymous survey data.
101
+ </div>
102
+
103
+
104
+ <div>
105
+ <p>Increasing granularity exacerbates the problem. If the students reported slightly more about their ages by including what season they were born in, we'd be able to <span class='highlight box square orange'>identify</span> about a sixth of them.
106
+
107
+ <p>This isn't just a hypothetical: A <a href="https://cpg.doc.ic.ac.uk/individual-risk/">birthday / gender / zip code combination</a> uniquely identifies 83% of the people in the United States.
108
+
109
+ <p>With the spread of large datasets, it is increasingly difficult to release detailed information without inadvertently revealing someone's identity. A week of a person's location data could <a href='https://www.nytimes.com/interactive/2018/12/10/business/location-data-privacy-apps.html'>reveal</a> a home and work address—possibly enough to find a name using public records.
110
+ </div>
111
+
112
+
113
+ <div>
114
+ <h3>Randomization</h3>
115
+ <p>One solution is to randomize responses so each student has plausible deniability. This lets us buy privacy at the cost of some uncertainty in our estimation of plagiarism rates.
116
+
117
+ <p><b>Step 1:</b> Each student flips a coin and looks at it without showing anyone.
118
+ </div>
119
+
120
+
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+ <div>
122
+ <p><b>Step 2:</b> Students who flip heads <span class='highlight purple-box box'>report plagiarism</span>, even if they haven't plagiarized.
123
+
124
+ <p>Students that flipped tails report the truth, secure with the knowledge that even if their response is linked back to their name, they can claim they flipped heads.
125
+ </div>
126
+
127
+
128
+ <div>
129
+ <p>With a little bit of math, we can approximate the rate of plagiarism from these randomized responses. We'll skip the algebra, but doubling the reported non-plagiarism rate gives a good estimate of the actual non-plagiarism rate.
130
+
131
+ <p class='rand-text'></p>
132
+
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+ <div class='button-outer'>
134
+ <div class='button-container flip-coins-once'>
135
+ Flip coins
136
+ </div>
137
+ </div>
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+
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+ </div>
140
+
141
+
142
+ <div>
143
+ <h3>How far off can we be?</h3>
144
+
145
+ <p>If we simulate this coin flipping lots of times, we can see the distribution of errors.
146
+
147
+ <p>The estimates are close most of the time, but errors can be quite large.
148
+
149
+ <div class='button-outer'>
150
+ <div class='button-container flip-coins'>
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+ Flip coins 200 times
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+ </div>
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+ </div>
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+
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+ </div>
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+
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+
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+ <div>
159
+ <p>Reducing the random noise (by reducing the number of students who flip heads) increases the accuracy of our estimate, but risks leaking information about students.
160
+
161
+ <p>If the coin is heavily weighted towards tails, identified students can't credibly claim they reported plagiarizing because they flipped heads.
162
+
163
+ <div class="slider-outer">
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+ <div class="slide-container-heads-prob"></div>
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+ <div class='pointer'><div></div></div>
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+ </div>
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+
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+ </div>
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+
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+
171
+ <div>
172
+ <p>One surprising way out of this accuracy-privacy tradeoff: carefully collect information from even more people.
173
+
174
+ <p>If we got students from other schools to fill out this survey, we could accurately measure plagiarism while protecting everyone's privacy. With enough students, we could even start comparing plagiarism across different age groups again—safely this time.
175
+
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+ <div class="slider-outer">
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+ <div class="slide-container-population"></div>
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+ &nbsp;
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+ <div class="slide-container-heads-prob"></div>
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+ </div>
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+ </div>
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+
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+
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+
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+ </div>
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+ </div>
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+
188
+ <h3>Conclusion</h3>
189
+
190
+ <p>Aggregate statistics about private information are valuable, but can be risky to collect. We want researchers to be able to study things like the connection between demographics and health outcomes without revealing our entire medical history to our neighbors. The coin flipping technique in this article, called <a href='https://en.wikipedia.org/wiki/Randomized_response'>randomized response</a>, makes it possible to safely study private information.
191
+
192
+ <p>You might wonder if coin flipping is the only way to do this. It's not—<a href='https://desfontain.es/privacy/differential-privacy-in-more-detail.html'>differential privacy</a> can add targeted bits of random noise to a dataset and guarantee privacy. More flexible than randomized response, the 2020 Census will use it to <a href='https://www.youtube.com/watch?v=pT19VwBAqKA'>protect respondents' privacy</a>. In addition to randomizing responses, differential privacy also limits the impact any one response can have on the released data.
193
+
194
+
195
+ <h3>Credits</h3>
196
+
197
+ <p>Adam Pearce and Ellen Jiang // September 2020
198
+
199
+ <p>Thanks to Carey Radebaugh, Fernanda Viégas, Emily Reif, Hal Abelson, Jess Holbrook, Kristen Olson, Mahima Pushkarna, Martin Wattenberg, Michael Terry, Miguel Guevara, Rebecca Salois, Yannick Assogba, Zan Armstrong and our other colleagues at Google for their help with this piece.
200
+
201
+ </div>
202
+
203
+
204
+ <h3>More Explorables</h3>
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+
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+ <p id='recirc'></p>
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+
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+ <div id='end'></div>
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+
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+
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+ <script>
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+ if (window !== window.parent){
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+ makeGS()
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+
52
+ init()
53
+
54
+
55
+
56
+
57
+
58
+
59
+
60
+
61
+
62
+
63
+
64
+
65
+
66
+
67
+
68
+
69
+
70
+
71
+
72
+
73
+
74
+
75
+
76
+
77
+
public/anonymization/make-axii.js ADDED
@@ -0,0 +1,86 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeAxii = function(){
2
+
3
+ var stateScale = d3.scaleBand().domain(states).range(c.x.range())
4
+ var stateAxis = c.svg.append('g.axis.state.init-hidden')
5
+
6
+ var bw = stateScale.bandwidth()/2
7
+
8
+ stateAxis.appendMany('text', states)
9
+ .translate(d => [stateScale(d) + bw, c.height + 22])
10
+ .text(d => d)
11
+ .at({
12
+ textAnchor: 'middle',
13
+ })
14
+ .st({fill: '#444'})
15
+
16
+ stateAxis.appendMany('path', d3.range(ages.length + 1))
17
+ .at({
18
+ d: d => ['M', d*c.width/(ages.length), '0 V', c.height].join(' '),
19
+ stroke: '#aaa',
20
+ })
21
+
22
+ stateAxis.append('text.bold').text('Home State')
23
+ .translate([c.width/2, c.height + 45])
24
+ .at({textAnchor: 'middle'})
25
+
26
+ var ageScale = d3.scaleBand().domain(ages.slice().reverse()).range(c.x.range())
27
+ var ageAxis = c.svg.append('g.axis.age.init-hidden')
28
+
29
+ ageAxis.appendMany('text', ages)
30
+ .translate(d => [-30, ageScale(d) + bw])
31
+ .text(d => d)
32
+ .at({dy: '.33em'})
33
+ .st({fill: '#444'})
34
+
35
+ ageAxis.appendMany('path', d3.range(ages.length + 1))
36
+ .at({
37
+ d: d => ['M 0', d*c.width/(ages.length), 'H', c.width].join(' '),
38
+ stroke: '#aaa',
39
+ })
40
+
41
+ if (scale == 1){
42
+ ageAxis
43
+ .append('g').translate([-43, c.height/2])
44
+ .append('text.bold').text('Age')
45
+ .at({textAnchor: 'middle', transform: 'rotate(-90)'})
46
+ } else {
47
+ ageAxis
48
+ .append('g').translate([-22, 14])
49
+ .append('text.bold').text('Age')
50
+ .at({textAnchor: 'middle'})
51
+ }
52
+
53
+ var seasonAxis = c.svg.append('g.axis.state.init-hidden').lower()
54
+ seasonAxis.appendMany('g', ages)
55
+ .translate(d => ageScale(d), 1)
56
+ .appendMany('path', d3.range(1, 4))
57
+ .at({
58
+ d: d => ['M 0', d*bw/4*2, 'H', c.width].join(' '),
59
+ stroke: '#ddd',
60
+ })
61
+
62
+ var headAxis = c.svg.append('g.axis.state.init-hidden')
63
+ headAxis.appendMany('text.bold', ['Heads', 'Tails'])
64
+ .text(d => d)
65
+ .translate((d, i) => [i ? c.width/4*3 + 20 : c.width/4 - 20, 88])
66
+ .at({textAnchor: 'middle'})
67
+
68
+
69
+ var headCaptionAxis = c.svg.append('g.axis.state.init-hidden')
70
+ headCaptionAxis.appendMany('text', ['reports plagiarism', 'reports truth'])
71
+ .text(d => d)
72
+ .translate((d, i) => [i ? c.width/4*3 + 20 : c.width/4 - 20, 88 + 15])
73
+ .at({textAnchor: 'middle'})
74
+ .st({fill: '#444'})
75
+
76
+
77
+ return {stateScale, stateAxis, headAxis, headCaptionAxis, ageScale, ageAxis, bw, seasonAxis}
78
+ }
79
+
80
+
81
+
82
+
83
+
84
+
85
+
86
+ if (window.init) window.init()
public/anonymization/make-estimates.js ADDED
@@ -0,0 +1,227 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeEstimates = function(){
2
+ var estimateScale = d3.scaleLinear()
3
+ .domain([.5 - .15, .5 + .15]).range([0, c.width])
4
+ .interpolate(d3.interpolateRound)
5
+
6
+ var jitterHeight = 90
7
+ var rs = 4 // rect size
8
+
9
+ var estimates = students[0].coinVals.map(d => ({val: .5, pctHead: .25, x: c.width/2, y: c.height - jitterHeight/2}))
10
+ var simulation = d3.forceSimulation(estimates)
11
+ .force('collide', d3.forceCollide(rs).strength(.1))
12
+ .stop()
13
+
14
+ function updateEstimates(){
15
+ var selectedStudents = students.all.slice(0, sliders.population)
16
+
17
+ selectedStudents[0].coinVals.map((_, i) => {
18
+ estimates[i].pctHead = d3.mean(selectedStudents, d => (d.coinVals[i] < sliders.headsProb) || d.plagerized)
19
+
20
+ estimates[i].val = (1 - estimates[i].pctHead)/(1 - sliders.headsProb)
21
+ })
22
+ updateSimulation(60)
23
+ }
24
+ updateEstimates()
25
+
26
+ function updateSimulation(ticks=80, yStrength=.005){
27
+ var variance = d3.variance(estimates, d => d.val)
28
+ var xStength = variance < .0005 ? .3 : .1
29
+
30
+ estimates.forEach(d => d.targetX = estimateScale(d.val))
31
+
32
+ simulation
33
+ .force('x', d3.forceX(d => d.targetX).strength(xStength))
34
+ .force('y', d3.forceY(c.height - jitterHeight/2).strength(yStrength))
35
+ .alpha(1)
36
+ // .alphaDecay(1 - Math.pow(0.001, 1/ticks))
37
+
38
+ for (var i = 0; i < ticks; ++i) simulation.tick()
39
+
40
+ estimates.forEach(d => {
41
+ d.x = Math.round(d.x)
42
+ d.y = Math.round(d.y)
43
+ })
44
+ }
45
+ updateSimulation(80, 1)
46
+ updateSimulation(80, .005)
47
+
48
+
49
+ // Set up DOM
50
+ var histogramSel = c.svg.append('g').translate([0, -25])
51
+ var axisSel = histogramSel.append('g.axis.state.init-hidden')
52
+ var histogramAxis = axisSel.append('g')
53
+
54
+ var numTicks = 6
55
+ var xAxis = d3.axisTop(estimateScale).ticks(numTicks).tickFormat(d3.format('.0%')).tickSize(100)
56
+
57
+ histogramAxis.call(xAxis).translate([.5, c.height + 5])
58
+ middleTick = histogramAxis.selectAll('g').filter((d, i) => i === 3)
59
+ middleTick.select('text').classed('bold', 1)
60
+ middleTick.select('line').st({stroke: '#000'})
61
+
62
+ histogramAxis.append('text.bold')
63
+ .text('actual non-plagiarism rate')
64
+ .translate([c.width/2, 11])
65
+ .st({fontSize: '10px'})
66
+
67
+ var containerSel = histogramSel.append('g#histogram').translate([0.5, .5])
68
+
69
+
70
+ // Selection overlay to highlight individual estimates.
71
+ var selectSize = rs*2 + 2
72
+ var selectColor = '#007276'
73
+ var rectFill = '#007276'
74
+
75
+ var activeSel = histogramSel.append('g.active.init-hidden.axis')
76
+ .st({pointerEvents: 'none'})
77
+
78
+ activeSel.append('rect')
79
+ .at({width: selectSize, height: selectSize, stroke: selectColor, fill: 'none', strokeWidth: 3})
80
+ .translate([-selectSize/2, -selectSize/2])
81
+
82
+ var activeTextHighlight = activeSel.append('rect')
83
+ .at({x: -32, width: 32*2, height: 18, y: -25, fill: 'rgba(255,255,255,.6)', rx: 10, ry: 10, xfill: 'red'})
84
+
85
+ var activeTextSel = activeSel.append('text.est-text.bold')
86
+ .text('34%')
87
+ .at({textAnchor: 'middle', textAnchor: 'middle', y: '-1em'})
88
+ .st({fill: selectColor})
89
+
90
+ var activePathSel = activeSel.append('path')
91
+ .st({stroke: selectColor, strokeWidth: 3})
92
+
93
+
94
+ // Update highlight DOM with current highlight
95
+ var curDrawData = {pctHead: .25, val: .5, x: c.width/2, y: c.height - jitterHeight/2}
96
+ function setActive(active, dur=0){
97
+ if (active !== estimates.active){
98
+ estimates.forEach(d => {
99
+ d.active = d == active
100
+ d.fy = d.active ? d.y : null
101
+ })
102
+ estimates.active = active
103
+ }
104
+
105
+ students.updateHeadsPos()
106
+
107
+
108
+ sel.flipCircle
109
+ .transition().duration(0).delay(d => d.i*5*(dur > 0 ? 1 : 0))
110
+ .at({transform: d => slides && slides.curSlide && slides.curSlide.showFlipCircle && d.coinVals[active.index] < sliders.headsProb ?
111
+ 'scale(1)' : 'scale(.1)'})
112
+
113
+
114
+ flipCoinTimer.stop()
115
+ if (dur){
116
+ var objI = d3.interpolateObject(curDrawData, active)
117
+
118
+ flipCoinTimer = d3.timer(ms => {
119
+ var t = d3.easeCubicInOut(d3.clamp(0, ms/dur, 1))
120
+ drawData(objI(t))
121
+ if (t == 1) flipCoinTimer.stop()
122
+ })
123
+ } else{
124
+ drawData(active)
125
+ }
126
+
127
+ function drawData({pctHead, val, x, y}){
128
+ activeSel.translate([x + rs/2, y + rs/2])
129
+ activeTextSel.text('est. ' + d3.format('.1%')(val))
130
+ activePathSel.at({d: `M ${selectSize/2*Math.sign(c.width/2 - x)} -1 H ${c.width/2 - x}`})
131
+
132
+ var error = Math.abs(val - .5)
133
+ var fmt = d3.format(".1%")
134
+ var pop = sliders.population
135
+ d3.select('.rand-text')
136
+ // .html(`${fmt(1 - pctHead)} of students said they had never plagerized. Since about half the students flipped heads and automatically reported plagerizism, we double that to <span class='highlight square blue-box box'>estimate ${fmt(val)}</span> of students haven't plagerized—${error > .1 ? '' : error > .07 ? 'a little ' : 'not '}far from the actual rate of ${fmt(.5)}`)
137
+ // .html(`${Math.round((1 - pctHead)*pop)} of ${pop} students said they had never plagiarized. Since about half the students flipped heads and automatically reported plagiarism, we double that rate to <span class='highlight square blue-box box'>estimate ${fmt(val)}</span> of students haven't plagiarized—${error > .4 ? '' : error > .07 ? 'a little ' : 'not '}far from the actual rate of ${fmt(.5)}`)
138
+ .html(`Here, ${fmt(1 - pctHead)} students said they had never plagiarized. Doubling that, we <span class='highlight square blue-box box'>estimate ${fmt(val)}</span> of students haven't plagiarized—${error > .1 ? 'quite ' : error > .07 ? 'a little ' : 'not '}far from the actual rate of ${fmt(.5)}`)
139
+
140
+ curDrawData = {pctHead, val, x, y}
141
+ }
142
+ }
143
+ window.flipCoinTimer = d3.timer(d => d)
144
+
145
+
146
+
147
+ var estimateSel = containerSel.appendMany('rect.estimate', estimates)
148
+ .at({width: rs, height: rs, stroke: '#fff', fill: rectFill, strokeWidth: .5})
149
+ .st({fill: rectFill})
150
+ .translate([rs/2, rs/2])
151
+ .on('mouseover', (d, i) => {
152
+ if (window.slides.curSlide.showHistogram) {
153
+ setActive(d)
154
+ }
155
+ })
156
+
157
+ function setSelectorOpacity(textOpacity, strokeOpacity) {
158
+ activeTextSel.st({opacity: textOpacity})
159
+ activeSel.st({opacity: strokeOpacity})
160
+ activePathSel.st({opacity: strokeOpacity})
161
+ }
162
+
163
+ function render(transition=false){
164
+ estimateSel.translate(d => [d.x, d.y])
165
+ setActive(estimates.active)
166
+
167
+ if (transition){
168
+ if (window.flipAllCoinsTimer) window.flipAllCoinsTimer.stop()
169
+ window.flipAllCoinsTimer = d3.timer(ms => {
170
+ var t = d3.easeExpIn(d3.clamp(0, ms/5000, 1), 20)
171
+ if (flipAllCoinsTimer.forceEnd) t = 1
172
+
173
+ if (t > .028) {
174
+ setSelectorOpacity(textOpacity=0, strokeOpacity=0.7)
175
+ }
176
+
177
+ var index = Math.floor((estimates.length - 2)*t) + 1
178
+ estimateSel.classed('active', (d, i) => i <= index)
179
+
180
+ setActive(estimates[index])
181
+ // flipCoinsSel.text('Flip coins ' + d3.format('03')(index < 100 ? index : index + 1) + ' times')
182
+ flipCoinsSel.text('Flip coins 200 times')
183
+
184
+ if (t == 1) {
185
+ flipAllCoinsTimer.stop()
186
+ setSelectorOpacity(textOpacity=1, strokeOpacity=1)
187
+ }
188
+ })
189
+ } else {
190
+ setSelectorOpacity(textOpacity=1, strokeOpacity=1)
191
+ flipCoinsSel
192
+ }
193
+ }
194
+ window.flipAllCoinsTimer = d3.timer(d => d)
195
+
196
+
197
+ var flipCoinsSel = d3.select('.flip-coins').on('click', () => {
198
+ students.all.forEach(student => {
199
+ student.coinVals = student.coinVals.map(j => Math.random())
200
+ })
201
+
202
+ updateEstimates()
203
+ render(true)
204
+ })
205
+
206
+ d3.select('.flip-coins-once').on('click', flipCoin)
207
+ function flipCoin(){
208
+ active = estimates[0]
209
+
210
+ students.all.forEach(student => {
211
+ student.coinVals = student.coinVals.map(j => Math.random())
212
+ })
213
+
214
+ active.fy = active.y = c.height - jitterHeight/2
215
+ updateEstimates()
216
+
217
+ estimateSel.translate(d => [d.x, d.y])
218
+ estimates.active = null
219
+ setActive(active, 1000)
220
+ }
221
+
222
+ Object.assign(estimates, {updateEstimates, setActive, render, flipCoin, axisSel, containerSel, estimateSel, activeSel})
223
+
224
+ return estimates
225
+ }
226
+
227
+ if (window.init) window.init()
public/anonymization/make-gs.js ADDED
@@ -0,0 +1,105 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeGS = function(){
2
+ var prevSlideIndex = -1
3
+ function updateSlide(i){
4
+ var slide = slides[i]
5
+ if (!slide) return
6
+
7
+ d3.select('.tooltip').classed('tooltip-hidden', true)
8
+
9
+ var dur = 500
10
+
11
+ sel.student.transition('xKey').duration(dur).delay(dur ? slide.circleDelayFn : 0)
12
+ .translate(d => (d.isAdditionalStudent && slide.xKey != 'plagerizedShifted') ? [0,0]: d.pos[slide.xKey])
13
+
14
+
15
+ if (sel.rectAt[slide.xKey]){
16
+ sel.uniqueBox.transition('at').duration(dur)
17
+ .delay(d => dur ? slide.circleDelayFn(d.d0) : 0)
18
+ .at(sel.rectAt[slide.xKey])
19
+ .translate(d => d.d0.group[slide.xKey].pos)
20
+ }
21
+
22
+ sel.uniqueBox.transition().duration(dur)
23
+ .st({opacity: slide.showUniqueBox ? 1 : 0})
24
+
25
+ sel.uniqueSeasonBox.transition()
26
+ .delay((d, i) => slide.showUniqueSeasonBox ? dur*2 + i*40 : 0).duration(slide.showUniqueSeasonBox ? 0 : dur)
27
+ .st({opacity: slide.showUniqueSeasonBox ? 1 : 0})
28
+
29
+
30
+ if (sliders.headsProb != slide.headsProbTarget && slide.animateHeadsProbSlider != -1){
31
+ var headI = d3.interpolate(sliders.headsProb, slide.headsProbTarget)
32
+ if (window.headSliderTimer) window.headSliderTimer.stop()
33
+ window.headSliderTimer = d3.timer(ms => {
34
+ var dur = slide.animateHeadsProbSlider ? 2000 : 1
35
+ var t = d3.easeCubicInOut(d3.clamp(0, ms/dur, 1))
36
+ sliders.updateHeadsProb(headI(t))
37
+ if (t == 1) headSliderTimer.stop()
38
+ })
39
+ }
40
+
41
+ if (sliders.population != slide.populationTarget){
42
+ var popI = d3.interpolate(sliders.population, slide.populationTarget)
43
+ if (window.popSliderTimer) window.popSliderTimer.stop()
44
+ window.popSliderTimer = d3.timer(ms => {
45
+ var dur = slide.animatePopulationSlider ? 2000 : 1
46
+ var t = d3.easeCubicInOut(d3.clamp(0, ms/dur, 1))
47
+ sliders.updatePopulation(Math.round(popI(t)/2)*2)
48
+ if (t == 1) popSliderTimer.stop()
49
+ })
50
+ }
51
+
52
+ axii.stateAxis.transition().duration(dur/2)
53
+ .st({opacity: slide.showStateAxis ? 1 : 0})
54
+ axii.ageAxis.transition().duration(dur/2)
55
+ .st({opacity: slide.showAgeAxis ? 1 : 0})
56
+ axii.seasonAxis.transition().duration(dur/2)
57
+ .st({opacity: slide.showSeasonAxis ? 1 : 0})
58
+ axii.headAxis.transition().duration(dur/2)
59
+ .st({opacity: slide.showHeadAxis ? 1 : 0})
60
+ axii.headCaptionAxis.transition().duration(dur/2)
61
+ .st({opacity: slide.showHeadCaptionAxis ? 1 : 0})
62
+ estimates.axisSel.transition().delay(dur).duration(dur/2)
63
+ .st({opacity: slide.showHistogramAxis ? 1 : 0})
64
+ estimates.activeSel.transition().delay(dur).duration(dur/2)
65
+ .st({opacity: slide.showHistogramAxis ? 1 : 0})
66
+ // axii.estimateAxis.transition().delay(dur).duration(dur/2)
67
+ // .st({opacity: slide.showEstimate && !slide.enterHistogram ? 1 : 0})
68
+ // axii.plagerizedAxis.transition().delay(dur).duration(dur/2)
69
+ // .st({opacity: slide.showPlagerizedAxis ? 1 : 0})
70
+
71
+
72
+ annotationSel.transition().duration(dur/2)
73
+ .st({opacity: d => i == d.slide ? 1 : 0})
74
+
75
+ estimates.containerSel.transition('xKey').duration(dur/2)
76
+ .st({opacity: slide.showHistogram ? 1 : 0})
77
+
78
+ if (slide.enterHistogram){
79
+ estimates.render(true)
80
+ } else {
81
+ window.flipAllCoinsTimer._time = Infinity
82
+ }
83
+ if (slide.enterHistogram === 0) estimates.estimateSel.classed('active', 1)
84
+
85
+
86
+ // Display the default coin flip state if the histogram is not visible.
87
+ sel.flipCircle.transition().duration(dur)
88
+ .at({transform: d => {
89
+ return slide.showFlipCircle && d.coinVals[estimates.active.index] < sliders.headsProb ? 'scale(1)' : 'scale(.1)'}})
90
+
91
+ prevSlideIndex = i
92
+ slides.curSlide = slide
93
+ }
94
+
95
+ var gs = d3.graphScroll()
96
+ .container(d3.select('.container-1'))
97
+ .graph(d3.selectAll('container-1 #graph'))
98
+ .eventId('uniqueId1')
99
+ .sections(d3.selectAll('.container-1 #sections > div'))
100
+ .offset(300)
101
+ .on('active', updateSlide)
102
+ }
103
+
104
+
105
+ if (window.init) window.init()
public/anonymization/make-sel.js ADDED
@@ -0,0 +1,78 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeSel = function(){
2
+ function ttFmt(d){
3
+ var ttSel = d3.select('.tooltip').html('')
4
+
5
+ var ageStr = d.age + ' year old'
6
+ if (slides.curSlide.index == 4){
7
+ ageStr = ageStr + ' born in the ' + ['spring', 'summer', 'fall', 'winter'][d.season]
8
+ }
9
+ ttSel.append('div').html(`
10
+ ${ageStr} from ${d.state} who
11
+ ${d.plagerized ?
12
+ '<span class="highlight purple">plagiarized</span>' :
13
+ '<span class="highlight grey">never plagiarized</span>'}
14
+ `)
15
+
16
+ if (slides.curSlide.index < 6) return
17
+
18
+ var isHeads = d.coinVals[estimates.active.index] < sliders.headsProb
19
+ ttSel.append('div').html(`
20
+ They flipped
21
+ ${isHeads ? 'heads' : 'tails'}
22
+ and said they had
23
+ ${d.plagerized || isHeads ?
24
+ '<span class="highlight purple-box box">plagiarized</span>' :
25
+ '<span class="highlight grey-box box">never plagiarized</span>'}
26
+ `)
27
+ .st({marginTop: 10})
28
+ }
29
+
30
+ var rectAt = {}
31
+ var rs = (axii.bw - 10)*2
32
+ rectAt.ageState = {width: rs, height: rs, x: -rs/2, y: -rs/2}
33
+ var uniqueBox = c.svg.appendMany('rect.unique.init-hidden', students.byAgeState.filter(d => d.length == 1))
34
+ .translate(d => d.pos)
35
+ .at(rectAt.ageState)
36
+
37
+ var rs = axii.bw/4 + 5.5
38
+ rectAt.ageStateSeason = {width: rs, height: rs, x: Math.round(-rs/2), y: 4}
39
+ var uniqueSeasonBox = c.svg.appendMany(
40
+ 'rect.unique.init-hidden',
41
+ students.byAgeStateSeason.filter(d => d.length == 1 && d[0].group.ageState.length > 1))
42
+ .translate(d => d.pos)
43
+ .at(rectAt.ageStateSeason)
44
+
45
+ // number of uniquely id'd students
46
+ // console.log(uniqueSeasonBox.size())
47
+
48
+ var studentGroup = c.svg.append('g')
49
+ .at({width: 500, height: 500})
50
+
51
+ var student = studentGroup.appendMany('g.student', students.all)
52
+ .call(d3.attachTooltip)
53
+ .on('mouseover', ttFmt)
54
+ .translate(d => d.isAdditionalStudent ? [0,0]: d.pos.grid)
55
+ .classed('inactive', d => d.isAdditionalStudent)
56
+
57
+ var rs = 16
58
+ var flipCircle = student.append('circle')
59
+ .at({transform: 'scale(.1)'})
60
+ .at({r: 9, fill: '#fff'})
61
+ .at({stroke: '#b0b' })
62
+
63
+ var circle = student.append('circle').at({
64
+ r: 5,
65
+ fill: d => d.plagerized ? '#f0f' : '#ccc',
66
+ stroke: d => d.plagerized ? '#b0b' : '#aaa',
67
+ strokeWidth: 1,
68
+ })
69
+
70
+
71
+
72
+ addSwoop(c)
73
+
74
+ return {student, studentGroup, circle, flipCircle, rectAt, uniqueBox, uniqueSeasonBox}
75
+ }
76
+
77
+
78
+ if (window.init) window.init()
public/anonymization/make-sliders.js ADDED
@@ -0,0 +1,139 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeSliders = function(){
2
+ var rv = {
3
+ population: 144,
4
+ headsProb: .5,
5
+ }
6
+
7
+ rv.updateHeadsProb = (headsProb) => {
8
+ rv.headsProb = headsProb
9
+ updateSliderPos()
10
+
11
+
12
+ estimates.updateEstimates()
13
+ estimates.render()
14
+ }
15
+
16
+ rv.updatePopulation = (population) => {
17
+ rv.population = population
18
+ updateSliderPos()
19
+
20
+
21
+ var scale = d3.clamp(0, 13 / Math.sqrt(population), 1)
22
+ sel.studentGroup.st({
23
+ transformOrigin: 'top',
24
+ transformOrigin: c.width/2 + 'px ' + 160 + 'px',
25
+ transform: `scale(${scale})`
26
+ })
27
+
28
+ estimates.updateEstimates()
29
+ estimates.render()
30
+
31
+ sel.student.classed('inactive',(d, i) => i >= population)
32
+ }
33
+
34
+ rv.updatePopulationSlider = (val) => {
35
+ rv.updatePopulation(val)
36
+ }
37
+
38
+ rv.updateNoiseSlider = (val) => {
39
+ rv.updateHeadsProb(val)
40
+ }
41
+
42
+ var updateSliderPos = (function(){
43
+ var width = d3.clamp(50, window.innerWidth/2 - 40, 145)
44
+ var height = 30
45
+ var color = '#007276'
46
+
47
+ var sliderVals = {
48
+ population: {
49
+ key: 'population',
50
+ textFn: d => rv.population + ' students' ,
51
+ r: [144, 756],
52
+ v: 144,
53
+ stepFn: d => rv.updatePopulation(Math.round(d.v/2)*2),
54
+ },
55
+ headsProb: {
56
+ key: 'headsProb',
57
+ textFn: d => d3.format('.1%')(rv.headsProb) + ' chance of heads',
58
+ r: [.2, .5],
59
+ v: .5,
60
+ stepFn: d => rv.updateHeadsProb(d.v),
61
+ }
62
+ }
63
+ var sliders = [sliderVals.headsProb, sliderVals.population, sliderVals.headsProb]
64
+ sliders.forEach(d => {
65
+ d.s = d3.scaleLinear().domain(d.r).range([0, width])
66
+ })
67
+
68
+ var sliderSel = d3.selectAll('.slide-container-population,.slide-container-heads-prob').html('')
69
+ .data(sliders)
70
+ .classed('slider', true)
71
+ .st({
72
+ display: 'inline-block',
73
+ width: width,
74
+ paddingRight: (d, i) => i == 1 ? 40 : 0,
75
+ marginTop: 20,
76
+ })
77
+
78
+ var textSel = sliderSel.append('div.slider-label-container')
79
+ .st({marginBottom: -5})
80
+
81
+ var svgSel = sliderSel.append('svg').at({width, height})
82
+ .on('click', function(d){
83
+ d.v = d.s.invert(d3.mouse(this)[0])
84
+ d.stepFn(d)
85
+ })
86
+ .st({
87
+ cursor: 'pointer'
88
+ })
89
+ .append('g').translate(height/2, 1)
90
+ svgSel.append('rect').at({width, height, y: -height/2, fill: 'rgba(0,0,0,0)'})
91
+
92
+ svgSel.append('path').at({
93
+ d: `M 0 -.5 H ${width}`,
94
+ stroke: color,
95
+ strokeWidth: 1
96
+ })
97
+
98
+ var leftPathSel = svgSel.append('path').at({
99
+ d: `M 0 -.5 H ${width}`,
100
+ stroke: color,
101
+ strokeWidth: 3
102
+ })
103
+
104
+
105
+ var drag = d3.drag()
106
+ .on('drag', function(d){
107
+ var x = d3.mouse(this)[0]
108
+ d.v = d3.clamp(d3.min(d.r), d.s.invert(x), d3.max(d.r))
109
+ d.stepFn(d)
110
+ })
111
+
112
+ var rectSel = svgSel.append('rect')
113
+ .at({
114
+ width: height/2 - 1,
115
+ height: height/2 - 1,
116
+ stroke: color,
117
+ strokeWidth: 3,
118
+ fill: '#fff',
119
+ })
120
+ .translate([-height/4, -height/4])
121
+ .call(drag)
122
+
123
+ return isDrag => {
124
+ rectSel.at({x: d => Math.round(d.s(rv[d.key]))})
125
+ textSel.text(d => d.textFn(d))
126
+
127
+ leftPathSel.at({d: d => `M 0 -.5 H ${d.s(rv[d.key])}`})
128
+ }
129
+ })()
130
+ updateSliderPos()
131
+
132
+
133
+ return rv
134
+ }
135
+
136
+
137
+
138
+
139
+ if (window.init) window.init()
public/anonymization/make-slides.js ADDED
@@ -0,0 +1,98 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeSlides = function(){
2
+ var slides = [
3
+ {
4
+ xKey: 'grid',
5
+ circleDelayFn: d => axii.ageScale(d.age),
6
+ showFlipRect: 0,
7
+ populationTarget: 144,
8
+ headsProbTarget: .5,
9
+ },
10
+ {
11
+ xKey: 'age',
12
+ showAgeAxis: 1,
13
+ },
14
+ {
15
+ xKey: 'ageState',
16
+ showStateAxis: 1,
17
+ },
18
+ {
19
+ showUniqueBox: 1
20
+ },
21
+ {
22
+ xKey: 'ageStateSeason',
23
+ showUniqueBox: 1,
24
+ showUniqueSeasonBox: 1,
25
+ showSeasonAxis: 1,
26
+ },
27
+ {
28
+ xKey: 'heads',
29
+ showUniqueBox: 0,
30
+ showUniqueSeasonBox: 0,
31
+ showSeasonAxis: 0,
32
+ showAgeAxis: 0,
33
+ showStateAxis: 0,
34
+ showHeadAxis: 1,
35
+ },
36
+ {
37
+ showFlipCircle: 1,
38
+ showHeadCaptionAxis: 1,
39
+ },
40
+
41
+ // Flip coin
42
+ {
43
+ xKey: 'plagerizedShifted',
44
+ showHeadAxis: 0,
45
+ showHeadCaptionAxis: 0,
46
+ showHistogramAxis: 1,
47
+ },
48
+
49
+ // Exactly how far off can these estimates be after adding noise? Flip more coins to see the distribution.
50
+ {
51
+ enterHistogram: 1,
52
+ showHistogram: 1,
53
+ // showPlagerizedAxis: 0,
54
+ showEstimate: 1,
55
+ },
56
+
57
+ // Reducing the random noise increases our point estimate, but risks leaking information about students.
58
+ {
59
+ animateHeadsProbSlider: 1,
60
+ animatePopulationSlider: 1,
61
+ enterHistogram: 0,
62
+ name: 'noise',
63
+ headsProbTarget: .35,
64
+ },
65
+
66
+ // If we collect information from lots of people, we can have high accuracy and protect everyone's privacy.
67
+ {
68
+ showEstimate: 0,
69
+ showAllStudents: 1,
70
+ name: 'population',
71
+ animateHeadsProbSlider: -1,
72
+ animatePopulationSlider: 1,
73
+ populationTarget: 400,
74
+ },
75
+
76
+ ]
77
+
78
+ var keys = []
79
+ slides.forEach((d, i) => {
80
+ keys = keys.concat(d3.keys(d))
81
+ d.index = i
82
+ })
83
+ _.uniq(keys).forEach(str => {
84
+ var prev = null
85
+ slides.forEach(d => {
86
+ if (typeof(d[str]) === 'undefined'){
87
+ d[str] = prev
88
+ }
89
+ prev = d[str]
90
+ })
91
+ })
92
+
93
+ return slides
94
+ }
95
+
96
+
97
+
98
+ if (window.init) window.init()
public/anonymization/make-students.js ADDED
@@ -0,0 +1,184 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ window.makeStudents = function(){
2
+ var seed = new Math.seedrandom('12fbsab56')
3
+ var rand = d3.randomUniform.source(seed)(0, 1)
4
+
5
+ var ncols = 12
6
+
7
+ var allStudents = d3.range(756).map(i => {
8
+ var age = ages[Math.floor(rand()*ages.length)]
9
+ var state = states[Math.floor(rand()*states.length)]
10
+ var season = Math.floor(rand()*4)
11
+ var heads = rand() < .5
12
+
13
+ if (rand() < .1) state = 'NY'
14
+ if (rand() < .5 && state == 'RI') state = states[Math.floor(rand()*states.length)]
15
+ if (rand() < .5 && state == 'CT') state = states[Math.floor(rand()*states.length)]
16
+
17
+ var coinVals = d3.range(300).map(rand).slice(0, 200)
18
+
19
+ return {age, state, i, pos: {}, group: {}, season, heads, coinVals, isAdditionalStudent: true}
20
+ })
21
+
22
+ var students = allStudents.slice(0, 144)
23
+ students.forEach(student => student.isAdditionalStudent = false)
24
+
25
+ students.all = allStudents
26
+ students.all.forEach((d, i) => {
27
+ var x = (i % 25)/25*c.width
28
+ var y = ~~(i/25)/25*c.width
29
+ d.pos.all = [x, y]
30
+ })
31
+
32
+ var {bw, ageScale, stateScale} = axii
33
+ _.sortBy(students, d => -d.age).forEach((d, i) => {
34
+ var x = (i % ncols)/(ncols - 1)*c.width
35
+ var y = ~~(i/ncols)/(ncols - 1)*c.width
36
+ d.pos.grid = [x, y]
37
+ scale = .6
38
+ d.pos.smallGrid = [x * scale + 90, y * scale]
39
+ })
40
+
41
+ // Set half the student to have plagerized.
42
+ var studentsPlagerizedArray = _.sortBy(d3.range(students.length).map(i => i % 2 == 0), () => rand())
43
+ // var remainingPlagerizedArray = _.sortBy(d3.range(allStudents.length - students.length).map(i => i % 2 == 0), () => rand())
44
+ remainingPlagerizedArray = d3.range(students.all.length).map(i => i % 2 == 1)
45
+ var plagerizedArray = studentsPlagerizedArray.concat(remainingPlagerizedArray)
46
+ students.all.forEach((d, i) => d.plagerized = plagerizedArray[i])
47
+
48
+ students.byAge = d3.nestBy(students, d => d.age)
49
+ students.byAge.forEach(age => {
50
+ age.forEach((d, i) => {
51
+ d.pos.age = [i*10, ageScale(d.age) + bw]
52
+ })
53
+ })
54
+ students.byAgeState = d3.nestBy(students, d => d.age + d.state)
55
+ students.byAgeState.forEach(group => {
56
+ var d0 = group.d0 = group[0]
57
+ group.pos = [bw + stateScale(d0.state), bw + ageScale(d0.age)]
58
+
59
+ var angle = Math.PI*(3 - Math.sqrt(5))*(1 + Math.random()*.05 - .05/2)
60
+ group.forEach((d, i) => {
61
+ d.pos.ageState = addVec(phyllotaxis(i, 10.5, angle), group.pos)
62
+ d.group.ageState = group
63
+ })
64
+ })
65
+
66
+ students.byAgeStateSeason = d3.nestBy(students, d => d.age + d.state + d.season)
67
+ students.byAgeStateSeason.forEach(group => {
68
+ var d0 = group.d0 = group[0]
69
+ group.pos = [bw + stateScale(d0.state), bw*d0.season/2 + ageScale(d0.age)]
70
+
71
+ group.forEach((d, i) => {
72
+ d.pos.ageStateSeason = addVec([i*11 - group.length*11/2 + 6, 12], group.pos)
73
+ d.group.ageStateSeason = group
74
+ })
75
+ })
76
+
77
+
78
+ students.updateHeadsPos = function(){
79
+ students.byHeads = d3.nestBy(students, d => d.coinVals[estimates.active.index] < sliders.headsProb)
80
+ students.byHeads.forEach(group => {
81
+ group.pos = [group.key == 'true' ? c.width/4 -15 : c.width/4*3 +15, c.height/2]
82
+
83
+ group.forEach((d, i) => {
84
+ d.pos.heads = addVec(phyllotaxis(i, 12), group.pos)
85
+ d.group.heads = group
86
+ })
87
+ })
88
+ }
89
+
90
+ students.plagerizedGroup = d3.nestBy(_.sortBy(students.all, d => d.plagerized), d => d.plagerized)
91
+ students.plagerizedGroup.forEach((group, groupIndex) => {
92
+ var d0 = group.d0 = group[0]
93
+ var offset = -20
94
+ group.pos = [(d0.plagerized ? c.width/2 + offset : c.width/2 - offset), c.height/2 - 80]
95
+
96
+
97
+ var getOrderedPositions = function() {
98
+ positions = []
99
+
100
+ var step = 25
101
+ var top = 0
102
+ var bottom = 0
103
+ var right = 0
104
+
105
+ var addAbove = function(dirPositive=true) {
106
+ var y = (top + 1) * step
107
+ var x = 0
108
+ while (x <= right * step) {
109
+ positions.push([dirPositive ? x: (right * step - x), y])
110
+ x += step
111
+ }
112
+ top++
113
+ }
114
+
115
+ var addRight = function(dirPositive=true) {
116
+ var x = (right + 1) * step
117
+ var y = bottom * step
118
+ while (y <= top * step) {
119
+ positions.push([x, dirPositive ? y: -y])
120
+ y += step
121
+ }
122
+ right++
123
+ }
124
+
125
+ var addBelow = function(dirPositive=true) {
126
+ var y = (bottom - 1) * step
127
+ var x = 0
128
+ while (x <= right * step) {
129
+ positions.push([dirPositive ? x: (right * step - x), y])
130
+ x += step
131
+ }
132
+ bottom--
133
+ }
134
+
135
+ var addForward = function() {
136
+ addAbove(true)
137
+ addRight(false)
138
+ addBelow(false)
139
+ }
140
+
141
+ var addBackward = function() {
142
+ addBelow(true)
143
+ addRight(true)
144
+ addAbove(false)
145
+ }
146
+
147
+ isForward = true
148
+ while(positions.length < students.all.length) {
149
+ if (positions.length === 0) {
150
+ positions.push([0, 0])
151
+ addRight()
152
+ addBelow()
153
+ } else {
154
+ if (isForward) {
155
+ addForward()
156
+ } else {
157
+ addBackward()
158
+ }
159
+ isForward = !isForward
160
+ }
161
+ }
162
+ return positions
163
+ }
164
+
165
+ var populationPositions = getOrderedPositions()
166
+ var reversePositions = populationPositions.map(pos => [-pos[0], pos[1]])
167
+
168
+ group.forEach((d, i) => {
169
+ var x = (i % 7)/20*c.width
170
+ var y = ~~(i/7)/20*c.width
171
+ // d.pos.plagerized = addVec([x, y], group.pos)
172
+ d.pos.plagerizedShifted = addVec([x, y - 50], group.pos)
173
+ d.group.plagerized = group
174
+
175
+ d.pos.plagerizedShifted = addVec((groupIndex === 0) ? populationPositions[i]: reversePositions[i], group.pos)
176
+ })
177
+ })
178
+
179
+
180
+ students.rand = rand
181
+ return students
182
+ }
183
+
184
+ if (window.init) window.init()
public/anonymization/style-graph-scroll.css ADDED
@@ -0,0 +1,160 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ /** { border: 1px solid #f00; }*/
2
+
3
+
4
+ #container{
5
+ position: relative;
6
+ width: auto;
7
+ margin-left: -25px;
8
+ /*margin-bottom: 100px;*/
9
+ }
10
+
11
+ #sections{
12
+ width: 330px;
13
+ pointer-events: none;
14
+ }
15
+
16
+ #sections > div{
17
+ background: white;
18
+ opacity: .2;
19
+ margin-bottom: 400px;
20
+ line-height: 1.4em;
21
+ transition: opacity .2s;
22
+ pointer-events: all;
23
+ }
24
+ #sections > div:last-child{
25
+ height: 480px;
26
+ margin-bottom: 0px;
27
+ }
28
+ #sections > div.graph-scroll-active{
29
+ opacity: 1;
30
+ }
31
+
32
+ #graph{
33
+ margin-left: 40px;
34
+ width: 500px;
35
+ position: -webkit-sticky;
36
+ position: sticky;
37
+ top: 0px;
38
+ float: right;
39
+ height: 580px;
40
+ }
41
+
42
+ .slider-outer {
43
+ display: block;
44
+ max-width: 300px;
45
+ }
46
+
47
+ @media (max-width: 925px) {
48
+ #container{
49
+ margin-left: 0px;
50
+ }
51
+
52
+ #graph{
53
+ width: 100%;
54
+ float: none;
55
+ max-width: 500px;
56
+ margin: 0px auto;
57
+ }
58
+
59
+ #graph > div{
60
+ position: relative;
61
+ left:12px;
62
+ }
63
+
64
+ #sections{
65
+ width: auto;
66
+ position: relative;
67
+ margin: 0px auto;
68
+ }
69
+
70
+ #sections > div{
71
+ background: rgba(255,255,255,.8);
72
+ padding: 10px;
73
+ border-top: 1px solid;
74
+ border-bottom: 1px solid;
75
+ margin-bottom: 80vh;
76
+ width: calc(100vw - 20px);
77
+ margin-left: -5px;
78
+ }
79
+
80
+ #sections > div > *{
81
+ max-width: 750px;
82
+ }
83
+
84
+ #sections > div:first-child{
85
+ opacity: 1;
86
+ margin-top: -260px;
87
+ }
88
+
89
+ #sections > div:last-child{
90
+ height: auto;
91
+ }
92
+
93
+ #sections h3{
94
+ margin-top: .5em;
95
+ }
96
+
97
+ /* Adjust buttons for mobile. */
98
+
99
+ .button-container{
100
+ text-align: center;
101
+ left:0px;
102
+ }
103
+
104
+ /* Adjust sliders for mobile. */
105
+ input[type="range" i] {
106
+ width: 280px;
107
+ }
108
+ .slider-label-container{
109
+ width: 145px;
110
+ /* display: inline-block; */
111
+ }
112
+
113
+ .slide-container-heads-prob, .slide-container-population {
114
+ text-align: center;
115
+ }
116
+
117
+ .slider-container {
118
+ margin-bottom: 5px;
119
+ text-align: center;
120
+ width: 300px;
121
+ /* display:inline-block; */
122
+ }
123
+
124
+ .slider-outer {
125
+ text-align: center;
126
+ display: flex;
127
+ max-width: 300px;
128
+ }
129
+
130
+ .headsProb, .population {
131
+ margin-left: 15px;
132
+ }
133
+
134
+ .slide-container-population {
135
+ margin-bottom: -10px;
136
+ }
137
+
138
+ .pointer div {
139
+ left: 10px;
140
+ top: 37px;
141
+ }
142
+
143
+ /* Adjust post summary test for mobile. */
144
+ .post-summary{
145
+ margin-left: 8px;
146
+ margin-bottom: 60px;
147
+ margin-top: 40px;
148
+ }
149
+
150
+ }
151
+
152
+ #graph > div{
153
+ margin: 20 35px;
154
+ }
155
+
156
+
157
+ #end{
158
+ height: 15vh;
159
+ }
160
+
public/anonymization/style.css ADDED
@@ -0,0 +1,344 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+
2
+ .tooltip {
3
+ top: -1000px;
4
+ position: fixed;
5
+ padding: 10px;
6
+ background: rgba(255, 255, 255, .90);
7
+ border: 1px solid lightgray;
8
+ pointer-events: none;
9
+ font-size: 14px;
10
+ width: 267px;
11
+ }
12
+ .tooltip-hidden{
13
+ opacity: 0;
14
+ transition: all .3s;
15
+ transition-delay: .1s;
16
+ }
17
+
18
+ @media (max-width: 590px){
19
+ div.tooltip{
20
+ bottom: -1px;
21
+ width: calc(100%);
22
+ left: -1px !important;
23
+ right: -1px !important;
24
+ top: auto !important;
25
+ width: auto !important;
26
+ }
27
+ }
28
+
29
+
30
+ .domain{
31
+ display: none;
32
+ }
33
+
34
+ text{
35
+ /*pointer-events: none;*/
36
+ /*text-shadow: 0 1px 0 #fff, 1px 0 0 #fff, 0 -1px 0 #fff, -1px 0 0 #fff;*/
37
+ }
38
+
39
+
40
+
41
+ .note{
42
+ font-size: 12px;
43
+ color: #999;
44
+ margin-top: 60px;
45
+ }
46
+
47
+ h1{
48
+ font-weight: 100;
49
+ font-size: 34px;
50
+ margin-bottom: .5em;
51
+ line-height: 1.3em;
52
+ margin-top: 1.4em;
53
+ text-align: center;
54
+ font-family: "Google Sans", sans-serif;
55
+ }
56
+
57
+ .mono{
58
+ font-family: monospace;
59
+ }
60
+
61
+
62
+ svg{
63
+ overflow: visible;
64
+ }
65
+
66
+
67
+
68
+
69
+ .axis{
70
+ font-size: 12px;
71
+ pointer-events: none;
72
+ }
73
+ .axis{
74
+ color: #888;
75
+
76
+ }
77
+ .axis text, .slider-label-container{
78
+ fill: #888;
79
+ color: #888;
80
+ font-family: 'Roboto', Helvetica, sans-serif;
81
+ font-size: 12px;
82
+ }
83
+
84
+ .axis text.bold, .slider-label-container{
85
+ color: #3C4043;
86
+ fill: #3C4043;
87
+ font-weight: 500;
88
+
89
+ }
90
+ .axis line{
91
+ stroke: #ccc;
92
+ }
93
+
94
+ div.axis b{
95
+ margin-bottom: -10px;
96
+ display: block;
97
+ }
98
+
99
+ .init-hidden{
100
+ opacity: 0;
101
+ }
102
+
103
+ .slider-label-container{
104
+ font-weight: 500;
105
+ }
106
+
107
+
108
+
109
+ .highlight{
110
+ color: #fff;
111
+ padding-left: 3px;
112
+ padding-right: 3px;
113
+ padding-top: 1px;
114
+ padding-bottom: 1px;
115
+ border-radius: 3px;
116
+ }
117
+
118
+ .highlight.blue{ background: blue; }
119
+ .highlight.orange{ background: #ffd890; }
120
+ .highlight.yellow{ background: #ff0; color: #000; }
121
+ .highlight.purple{ background: #CB10CB; }
122
+ .highlight.purple{ background: #FF7AFF; color: #000;}
123
+ .highlight.grey{ background: #ccc; color: #000;}
124
+ .highlight.box{
125
+ border: 1px solid #ff6200;
126
+ border-radius: 5px;
127
+ color: #000;
128
+ padding-bottom: 2px;
129
+ white-space: nowrap;
130
+ }
131
+ .highlight.purple-box{
132
+ border: 1px solid #b0b;
133
+ }
134
+ .highlight.grey-box{
135
+ border: 1px solid #ccc;
136
+ }
137
+ .highlight.box.square{
138
+ border-radius: 0px;
139
+ }
140
+ .highlight.blue-box{ border: 2px solid #007276; }
141
+
142
+
143
+
144
+ .circle{
145
+ background: #eee;
146
+ border: 1px solid #ccc;
147
+ font-family: monospace;
148
+ padding-left: 4px;
149
+ padding-right: 4px;
150
+ padding-top: 1px;
151
+ padding-bottom: 1px;
152
+
153
+ border-radius: 100px;
154
+ }
155
+
156
+
157
+ .strikethrough{
158
+ text-decoration: line-through;
159
+ color: #000;
160
+ }
161
+
162
+
163
+ .annotations path{
164
+ fill: none;
165
+ stroke: black;
166
+ }
167
+
168
+
169
+
170
+ rect.unique{
171
+ stroke: #ff6200;
172
+ stroke-width: 1px;
173
+ fill: #ffd890;
174
+
175
+ animation-duration: 1s;
176
+ animation-name: xstrokeblink;
177
+ display: inline-block;
178
+ animation-iteration-count: infinite;
179
+ animation-direction: alternate;
180
+ }
181
+
182
+
183
+ @keyframes strokeblink {
184
+ from {
185
+ /*fill: black;*/
186
+ stroke-width: 1px;
187
+ }
188
+
189
+ to {
190
+ /*fill: green;*/
191
+ stroke-width: 1px;
192
+ }
193
+ }
194
+
195
+
196
+
197
+
198
+
199
+ .inline-line{
200
+ border: 1px #f0f solid;
201
+ width: 20px;
202
+ display: inline-block;
203
+ position: relative;
204
+ top: -5px;
205
+ }
206
+
207
+ .slider-label-container{
208
+ width: 240px;
209
+ }
210
+ .slider-label{
211
+ font-size: smaller;
212
+ margin-left: 2px;
213
+ }
214
+
215
+ .slider-text-label{
216
+ margin-left: 5px;
217
+ white-space: nowrap;
218
+ }
219
+
220
+
221
+ g.student:hover circle{
222
+ stroke-width: 2px;
223
+ }
224
+
225
+ g{
226
+ /*opacity: 1 !important;*/
227
+ }
228
+
229
+ .inactive{
230
+ opacity: 0 !important;
231
+ pointer-events: none;
232
+ }
233
+
234
+ input[type="range" i] {
235
+ background-color:#def5ef;
236
+ -webkit-appearance: none;
237
+ height:20px;
238
+ width:240px;
239
+ overflow: hidden;
240
+ }
241
+
242
+ input[type='range']::-webkit-slider-thumb {
243
+ -webkit-appearance: none;
244
+ width: 16px;
245
+ height: 20px;
246
+ cursor: ew-resize;
247
+ background: #007276;
248
+ box-shadow: -200px 0 0 200px #7ed3c9;
249
+ border: 1px solid #333;
250
+ }
251
+
252
+ input:focus {
253
+ outline-width: 0;
254
+ }
255
+
256
+
257
+
258
+
259
+ .estimate{
260
+ opacity: 0;
261
+ pointer-events: none
262
+ }
263
+
264
+ .estimate.active{
265
+ opacity: .70;
266
+ pointer-events: all;
267
+ }
268
+
269
+ .est-text{
270
+ text-shadow: 0 2px 0 rgba(255,255,255,1), 2px 0 0 rgba(255,255,255,1), 0 -2px 0 rgba(255,255,255,1), -2px 0 0 rgba(255,255,255,1);
271
+ }
272
+
273
+
274
+
275
+
276
+ @media (max-width: 590px){
277
+ text{
278
+ font-size: 120% !important;
279
+ }
280
+ }
281
+
282
+
283
+ .slider{
284
+ user-select: none;
285
+ -webkit-tap-highlight-color: transparent;
286
+ }
287
+
288
+ .button-container{
289
+ border: 1px solid #888;
290
+ display: inline-block;
291
+ padding: 10px 20px;
292
+ cursor: pointer;
293
+ text-align: center;
294
+ border-radius: 10px;
295
+ user-select: none;
296
+ -webkit-tap-highlight-color: transparent;
297
+ margin: 0px auto;
298
+ /* color: #888;
299
+ font-family: 'Roboto', Helvetica, sans-serif;
300
+ font-size: 12px;
301
+ font-weight: 500;*/
302
+ position: relative;
303
+ left: -20px;
304
+ }
305
+
306
+ .button-container:hover{
307
+ background: #ddd;
308
+ }
309
+
310
+ .button-outer{
311
+ text-align: center;
312
+ margin-top: 20px;
313
+ }
314
+
315
+ .pointer{
316
+ height: 0px;
317
+ position: relative;
318
+ }
319
+ .pointer div {
320
+ overflow: visible;
321
+ content: "";
322
+ background-image: url(https://pair-code.github.io/interpretability/bert-tree/pointer.svg);
323
+ width: 27px;
324
+ height: 27px;
325
+ position: absolute;
326
+ left: 165px;
327
+ top: -35px;
328
+ }
329
+
330
+ a{
331
+ color: rgb(60, 64, 67);
332
+ }
333
+ a:hover{
334
+ color: #000;
335
+ }
336
+
337
+
338
+
339
+
340
+
341
+
342
+
343
+
344
+
public/base-rate/script.js ADDED
@@ -0,0 +1,317 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ /* Copyright 2020 Google LLC. All Rights Reserved.
2
+
3
+ Licensed under the Apache License, Version 2.0 (the "License");
4
+ you may not use this file except in compliance with the License.
5
+ You may obtain a copy of the License at
6
+
7
+ http://www.apache.org/licenses/LICENSE-2.0
8
+
9
+ Unless required by applicable law or agreed to in writing, software
10
+ distributed under the License is distributed on an "AS IS" BASIS,
11
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ See the License for the specific language governing permissions and
13
+ limitations under the License.
14
+ ==============================================================================*/
15
+
16
+
17
+
18
+
19
+
20
+ console.clear()
21
+ var ttSel = d3.select('body').selectAppend('div.tooltip.tooltip-hidden')
22
+
23
+ window.renderFns = []
24
+
25
+ window.m = (function(){
26
+ var rv = {b: .7, tpr: .8, fnr: .5, update, str: 'kids', titleStr: 'Children',}
27
+
28
+ function update(obj={}){
29
+ Object.assign(rv, obj)
30
+ window.renderFns.forEach(d => d())
31
+ }
32
+
33
+ return rv
34
+ })()
35
+
36
+ window.f = (function(){
37
+ var rv = {b: .3, tpr: .8, fnr: .5, update, str: 'adults', titleStr: 'Adults'}
38
+
39
+ function update(obj={}){
40
+ window.renderFns.forEach(d => d())
41
+ }
42
+
43
+ return rv
44
+ })()
45
+
46
+
47
+ var wLarge = d3.clamp(0, innerWidth/2 - 30, 300)
48
+
49
+ d3.select('#big-matrix').html('')
50
+ .appendMany('div.big-container', [{w: wLarge, s: f, isText: 1}, {w: wLarge, s: m, isText: 1}])
51
+ .each(drawMatrix)
52
+
53
+
54
+ addPattern(10, `pattern-${wLarge}-`)
55
+ addPattern(5, 'pattern-50-')
56
+
57
+ function addPattern(s, str){
58
+ var cColors = [colors.sick, colors.sick, colors.well, colors.well, lcolors.sick, lcolors.sick, lcolors.well, lcolors.well]
59
+ var rColors = [lcolors.sick, lcolors.well, lcolors.sick, lcolors.well, llcolors.sick, llcolors.well, llcolors.sick, llcolors.well]
60
+
61
+ d3.select('#big-matrix')
62
+ .append('svg')
63
+ .st({height: 0, position: 'absolute'})
64
+ .append('defs').appendMany('pattern', d3.range(8))
65
+ .at({ id: i => str + i, width: s, height: s})
66
+ .attr('patternUnits', 'userSpaceOnUse')
67
+ .append('rect')
68
+ .at({width: s, height: s, fill: i => rColors[i]})
69
+ .parent().append('circle')
70
+ .at({r: s == 10 ? 2.5 : 1.5, cx: s/2, cy: s/2, fill: i => cColors[i]})
71
+ }
72
+
73
+
74
+ var scale = d3.clamp(0, ((innerWidth - 50) / 3)/280, 1)
75
+ var isScaled = scale != 1
76
+
77
+ d3.select('#metrics').html('').st({height: 350*scale + 30})
78
+ .appendMany('div', [0, 1, 2])
79
+ .st({width: 280*scale, display: 'inline-block'})
80
+ .append('div')
81
+ .st({transform: `scale(${scale})`, transformOrigin: '0% 0%'})
82
+ .append('div.metrics-container').st({width: 280})
83
+ .each(drawMetric)
84
+
85
+ d3.selectAll('rect.drag')
86
+ .on('mouseover.style', d => d3.selectAll('rect.' + d).st({strokeWidth: 3, stroke: '#000'}))
87
+ .on('mouseout.style', d => d3.selectAll('rect.' + d).st({strokeWidth: 0}))
88
+
89
+ function drawMetric(i){
90
+ var sel = d3.select(this)
91
+
92
+ var text = [
93
+ // 'Percentage of <span style="background: #fcf">sick people</span><br> who <span style="background: #f0f">test positive<span>',
94
+ 'Percentage of sick people<br> who test positive',
95
+ 'Percentage of positive tests<br> who are actually sick',
96
+ 'Percentage of well people <br>who test negative',
97
+ ][i]
98
+
99
+ var percentFn = [
100
+ s => s.tpr,
101
+ s => s.b*s.tpr/(s.b*s.tpr + (1 - s.b)*(s.fnr)),
102
+ s => 1 - s.fnr,
103
+ ][i]
104
+
105
+ var colors = [
106
+ ['#f0f', '#fcf', '#fff', '#fff'],
107
+ ['#f0f', '#fff', '#fcf', '#fff'],
108
+ ['#fff', '#fff', '#fcf', '#f0f'],
109
+ ][i]
110
+
111
+ sel.append('h3').st({marginBottom: 20, fontSize: isScaled ? 30 : 20}).html(isScaled ? text.replace('<br>', '') : text)
112
+
113
+ var h = 200
114
+ var width = 100
115
+
116
+ var fDiv = sel.append('div').st({position: 'relative', top: -h + 7})
117
+ .datum({w: 50, s: f, isText: 0, colors}).each(drawMatrix)
118
+
119
+ var svg = sel.append('svg')
120
+ .at({width, height: h})
121
+ .st({fontSize: 14, fontFamily: 'monospace'})
122
+
123
+ svg.append('path').at({stroke: '#ccc', d: `M ${width/2 + .5} 0 V ${h}`})
124
+
125
+ var errorSel = svg.append('path')
126
+ .translate(width/2 + .5, 0)
127
+ .at({stroke: 'orange', strokeWidth: 3})
128
+
129
+ var fSel = svg.append('g')
130
+ var mSel = svg.append('g')
131
+
132
+ mSel.append('circle').at({r: 4, cx: width/2 + .5, fill: 'none', stroke: '#000'})
133
+ fSel.append('circle').at({r: 4, cx: width/2 + .5, fill: 'none', stroke: '#000'})
134
+
135
+ var fTextSel = fSel.append('text').text('23%')
136
+ .at({dy: '.33em', textAnchor: 'middle', x: width/4 - 3, fontSize: isScaled ? 20 : 16})
137
+ var mTextSel = mSel.append('text').text('23%')
138
+ .at({dy: '.33em', textAnchor: 'middle', x: width/4*3 + 5, fontSize: isScaled ? 20 : 16})
139
+
140
+ fSel.append('text').text('Adults').st({fontSize: isScaled ? 18 : 12})
141
+ .at({textAnchor: 'middle', x: -23, y: -30})
142
+ mSel.append('text').text('Children').st({fontSize: isScaled ? 18 : 12})
143
+ .at({textAnchor: 'middle', x: 124, y: -30})
144
+
145
+ var mDiv = sel.append('div').st({position: 'relative', top: -h + 7})
146
+ .datum({w: 50, s: m, isText: 0, colors}).each(drawMatrix)
147
+
148
+
149
+ renderFns.push(() => {
150
+ var fPercent = percentFn(f)
151
+ fSel.translate(h - h*fPercent, 1)
152
+ fTextSel.text(d3.format('.0%')(fPercent))
153
+
154
+ var mPercent = percentFn(m)
155
+ mSel.translate(h - h*mPercent, 1)
156
+ mTextSel.text(d3.format('.0%')(mPercent))
157
+
158
+ fDiv.translate(h - h*fPercent, 1)
159
+ mDiv.translate(h - h*mPercent, 1)
160
+
161
+ errorSel.at({d: 'M 0 ' + (h - h*fPercent) + ' V ' + (h - h*mPercent) })
162
+ })
163
+ }
164
+
165
+ function drawMatrix({s, w, isText, colors}){
166
+ var svg = d3.select(this).append('svg')
167
+ .at({width: w, height: w})
168
+
169
+
170
+ svg.append('rect').at({width: w + 1, height: w + 1})
171
+
172
+ if (!colors) colors = ['#000', '#000', '#000', '#000']
173
+
174
+ var rects = [
175
+ {n: 'tp', x: 0, y: 0, width: _ => s.b*w, height: _ => s.tpr*w},
176
+ {n: 'fn', x: 0, y: _ => 1 + s.tpr*w, width: _ => s.b*w, height: _ => w - s.tpr*w},
177
+ {n: 'fp', x: _ => 1 + s.b*w, y: 0, width: _ => w - s.b*w, height: _ => s.fnr*w},
178
+ {n: 'tn', x: _ => 1 + s.b*w, y: _ => 1 + s.fnr*w, width: _ => w - s.b*w, height: _ => w - s.fnr*w},
179
+ ]
180
+ rects.forEach((d, i) => d.i = i)
181
+
182
+ var rectSel = svg.appendMany('rect', rects)
183
+ .at({fill: d => `url(#pattern-${w}-${d.i}`})
184
+ // .at({opacity: d => colors[d.i] == '#fff' ? .5 : 1})
185
+ // .at({fill: d => `url(#pattern-${w}-${d.i + (colors[d.i] == '#ccc' ? 4 : 0)})`})
186
+ // .at({fill: d => colors[d.i] == '#ccc' ? '#000' : `url(#pattern-${w}-${d.i + (colors[d.i] == '#ccc' ? 4 : 0)})`})
187
+ .each(function(d){ d.sel = d3.select(this) })
188
+ rectSel.filter(d => colors[d.i] == '#fff').at({fill: '#eee'})
189
+
190
+ var bh = .5
191
+ svg.append('rect.tpr').at({height: bh}).translate(-bh/2, 1)
192
+ .datum('tpr')
193
+
194
+ svg.append('rect.fnr').at({height: bh}).translate(-bh/2, 1)
195
+ .datum('fnr')
196
+
197
+ svg.append('rect.b').at({width: bh, height: w}).translate(-bh/2, 0)
198
+ .datum('b')
199
+
200
+ var bh = 20
201
+ svg.append('rect.drag.tpr').at({height: bh}).translate(-bh/2, 1)
202
+ .call(makeDrag('tpr', 1)).datum('tpr').call(d3.attachTooltip).on('mouseover', ttFormat)
203
+
204
+ svg.append('rect.drag.fnr').at({height: bh}).translate(-bh/2, 1)
205
+ .call(makeDrag('fnr', 1)).datum('fnr').call(d3.attachTooltip).on('mouseover', ttFormat)
206
+
207
+ svg.append('rect.drag.b').at({width: bh, height: w}).translate(-bh/2, 0)
208
+ .call(makeDrag('b', 0)).datum('b').call(d3.attachTooltip).on('mouseover', ttFormat)
209
+
210
+
211
+ var tprRect = svg.selectAll('rect.tpr')
212
+ var fnrRect = svg.selectAll('rect.fnr')
213
+ var bRect = svg.selectAll('rect.b')
214
+
215
+ function ttFormat(str){
216
+ var html = ''
217
+ if (str == 'tpr') html = `${d3.format('.0%')(s.tpr)} of sick ${s.titleStr.toLowerCase()} test positive`
218
+ if (str == 'fnr') html = `${d3.format('.0%')(s.fnr)} of well ${s.titleStr.toLowerCase()} test negative`
219
+ if (str == 'b') html = `${d3.format('.0%')(s.b)} of ${s.titleStr.toLowerCase()} are sick`
220
+ ttSel.html(html)
221
+ }
222
+
223
+ function makeDrag(str, index){
224
+
225
+ return d3.drag()
226
+ .on('drag', function(){
227
+ var percent = d3.mouse(this)[index]/w
228
+ s[str] = d3.clamp(.15, percent, .85)
229
+
230
+ window.basetimer.stop()
231
+ s.update()
232
+
233
+ ttMove()
234
+ ttFormat(str)
235
+ })
236
+ .on('start', _ => svg.classed('dragging', 1))
237
+ .on('end', _ => svg.classed('dragging', 0))
238
+ }
239
+
240
+ renderFns.push(() => {
241
+ rectSel.each(d => d.sel.at(d))
242
+
243
+ tprRect.at({width: w*s.b, y: w*s.tpr})
244
+ fnrRect.at({x: w*s.b, width: w - w*s.b, y: w*s.fnr})
245
+ bRect.at({x: w*s.b})
246
+
247
+ // s => s.tpr,
248
+ // s => s.b*s.tpr/(s.b*s.tpr + (1 - s.b)*(s.fnr)),
249
+ // s => 1 - s.fnr,
250
+ if (!isText) return
251
+ })
252
+
253
+
254
+ if (!isText) return
255
+
256
+ svg.append('text').text(s.titleStr).at({textAnchor: 'middle', x: w/2, y: -8, fontSize: 20})
257
+
258
+ if (innerWidth < 800) return
259
+ // if (true)
260
+
261
+ svg.appendMany('text', d3.range(4)).each(function(i){
262
+ var isSick = i < 2
263
+ var isPos = i % 2
264
+
265
+ var pad = 5
266
+ d3.select(this)
267
+ .translate([isSick ? pad : w - pad, isPos ? 13 : w - 23])
268
+ .at({
269
+ textAnchor: isSick ? 'start' : 'end',
270
+ fill: '#000',
271
+ fontSize: 12,
272
+ fontFamily: 'monospace',
273
+ pointerEvents: 'none',
274
+ })
275
+ .tspans([
276
+ ' test : ' + (isPos ? 'sick' : 'well'),
277
+ 'truth: ' + (isSick ? 'sick' : 'well')])
278
+ })
279
+ }
280
+
281
+
282
+ if (window.basetimer) window.basetimer.stop()
283
+ window.basetimer = d3.timer(t => {
284
+
285
+ var val = t/1000 % (Math.PI*4)
286
+
287
+ if (val < Math.PI*2){
288
+ m.b = (Math.sin(val + Math.PI/2))/4 + .4
289
+ } else if (Math.PI*3 < val && val < Math.PI*5 || true){
290
+ f.tpr = (Math.sin(val + Math.PI/2))/4 + .4
291
+ }
292
+ m.update()
293
+ })
294
+
295
+
296
+
297
+
298
+
299
+ m.update()
300
+
301
+
302
+
303
+ function ttMove(d){
304
+ if (!ttSel.size()) return;
305
+
306
+ var e = d3.event.sourceEvent,
307
+ x = e.clientX,
308
+ y = e.clientY,
309
+ bb = ttSel.node().getBoundingClientRect(),
310
+ left = d3.clamp(20, (x-bb.width/2), window.innerWidth - bb.width - 20),
311
+ top = innerHeight > y + 20 + bb.height ? y + 20 : y - bb.height - 20;
312
+
313
+ ttSel
314
+ .style('left', left +'px')
315
+ .style('top', top + 'px');
316
+ }
317
+
public/base-rate/sliders.js ADDED
@@ -0,0 +1,103 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ /* Copyright 2020 Google LLC. All Rights Reserved.
2
+
3
+ Licensed under the Apache License, Version 2.0 (the "License");
4
+ you may not use this file except in compliance with the License.
5
+ You may obtain a copy of the License at
6
+
7
+ http://www.apache.org/licenses/LICENSE-2.0
8
+
9
+ Unless required by applicable law or agreed to in writing, software
10
+ distributed under the License is distributed on an "AS IS" BASIS,
11
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ See the License for the specific language governing permissions and
13
+ limitations under the License.
14
+ ==============================================================================*/
15
+
16
+
17
+
18
+
19
+
20
+ var sliderVals = {}
21
+
22
+ var sliders = [
23
+ {
24
+ key: 'fNoiseMag',
25
+ text: 'Feature Noise',
26
+ r: [0, 1],
27
+ v: .5
28
+ },
29
+ {
30
+ key: 'fBiasMag',
31
+ text: 'Feature Bias',
32
+ r: [0, 1],
33
+ v: .2
34
+ },
35
+ ]
36
+
37
+ !(function(){
38
+ var width = 145
39
+ var height = 30
40
+
41
+ sliders.forEach(d => {
42
+ d.s = d3.scaleLinear().domain(d.r).range([0, width])
43
+ sliderVals[d.key] = d
44
+ })
45
+
46
+ var sliderSel = d3.select('.slider').html('')
47
+ .appendMany('div', sliders)
48
+ .at({class: d => d.key})
49
+ .st({
50
+ display: 'inline-block',
51
+ width: width,
52
+ paddingRight: 60,
53
+ marginTop: 20,
54
+ color: '#000'
55
+ })
56
+
57
+ sliderSel.append('div')
58
+ .text(d => d.text)
59
+ .st({marginBottom: height/2})
60
+
61
+ var svgSel = sliderSel.append('svg').at({width, height})
62
+ .on('click', function(d){
63
+ d.v = d.s.invert(d3.mouse(this)[0])
64
+ updatePos()
65
+ })
66
+ .st({
67
+ cursor: 'pointer'
68
+ })
69
+ .append('g').translate(height/2, 1)
70
+ svgSel.append('rect').at({width, height, y: -height/2, fill: '#fff'})
71
+
72
+ svgSel.append('path').at({
73
+ d: `M 0 0 H ${width}`,
74
+ stroke: '#000',
75
+ strokeWidth: 2
76
+ })
77
+
78
+ var drag = d3.drag()
79
+ .on('drag', function(d){
80
+ var x = d3.mouse(this)[0]
81
+ d.v = d3.clamp(d3.min(d.r), d.s.invert(x), d3.max(d.r))
82
+
83
+ updatePos()
84
+ })
85
+
86
+ var circleSel = svgSel.append('circle')
87
+ .at({
88
+ r: height/2,
89
+ stroke: '#000',
90
+ strokeWidth: 2,
91
+ fill: '#fff',
92
+ })
93
+ .call(drag)
94
+
95
+
96
+ function updatePos(){
97
+ circleSel.at({cx: d => d.s(d.v)})
98
+ if (sliderVals.onUpdate) sliderVals.onUpdate()
99
+ }
100
+
101
+ updatePos()
102
+ sliderVals.updatePos = updatePos
103
+ })()
public/base-rate/style.css ADDED
@@ -0,0 +1,134 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ /* Copyright 2020 Google LLC. All Rights Reserved.
2
+
3
+ Licensed under the Apache License, Version 2.0 (the "License");
4
+ you may not use this file except in compliance with the License.
5
+ You may obtain a copy of the License at
6
+
7
+ http://www.apache.org/licenses/LICENSE-2.0
8
+
9
+ Unless required by applicable law or agreed to in writing, software
10
+ distributed under the License is distributed on an "AS IS" BASIS,
11
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12
+ See the License for the specific language governing permissions and
13
+ limitations under the License.
14
+ ==============================================================================*/
15
+
16
+
17
+
18
+ .tooltip {
19
+ top: -1000px;
20
+ position: fixed;
21
+ padding: 10px;
22
+ background: rgba(255, 255, 255, .90);
23
+ border: 1px solid lightgray;
24
+ pointer-events: none;
25
+ width: auto;
26
+
27
+ }
28
+ .tooltip-hidden{
29
+ opacity: 0;
30
+ transition: all .3s;
31
+ transition-delay: .1s;
32
+ }
33
+
34
+ @media (max-width: 590px){
35
+ div.tooltip{
36
+ bottom: -1px;
37
+ width: calc(100%);
38
+ left: -1px !important;
39
+ right: -1px !important;
40
+ top: auto !important;
41
+ width: auto !important;
42
+ }
43
+ }
44
+
45
+ svg{
46
+ overflow: visible;
47
+ }
48
+
49
+ .domain{
50
+ display: none;
51
+ }
52
+
53
+ #big-matrix text{
54
+ font-family: 'Google Sans', sans-serif;
55
+ /*pointer-events: none;*/
56
+ text-shadow: 0 1px 0 #fff, 1px 0 0 #fff, 0 -1px 0 #fff, -1px 0 0 #fff;
57
+ text-shadow: 0 1px 0 rgba(255,255,255, .6), 1px 0 0 rgba(255,255,255, .6), 0 -1px 0 rgba(255,255,255, .6), -1px 0 0 rgba(255,255,255, .6);
58
+ }
59
+
60
+
61
+ body{
62
+ max-width: 900px;
63
+ }
64
+
65
+ h1{
66
+ }
67
+
68
+ h1{
69
+ /*text-align: center;*/
70
+ }
71
+
72
+ h3{
73
+ font-size: 20px;
74
+ }
75
+ #big-matrix{
76
+ text-align: center;
77
+ margin-top: 40px;
78
+ font-family: 'Google Sans', sans-serif;
79
+
80
+ }
81
+ div.big-container{
82
+ display: inline-block;
83
+ margin: 10px;
84
+ }
85
+
86
+ #metrics{
87
+ text-align: center;
88
+ }
89
+ div.metrics-container{
90
+ display: inline-block;
91
+ margin: 10px;
92
+ }
93
+
94
+ div.metrics-container > div{
95
+ display: inline-block;
96
+ vertical-align: middle;
97
+ pointer-events: none;
98
+ }
99
+
100
+
101
+
102
+
103
+ .drag{
104
+ cursor: pointer;
105
+ fill-opacity: 0;
106
+ fill: #f0f;
107
+ stroke-opacity: 0;
108
+ }
109
+
110
+ svg.dragging{
111
+ cursor: pointer;
112
+ }
113
+
114
+ sl{
115
+ /*background: #000; */
116
+ color: #000;
117
+ border: 1px solid #eee;
118
+ width: 1em;
119
+ display: inline-block;
120
+ padding-left: 2px;
121
+ padding-right: 2px;
122
+ font-style: normal;
123
+ }
124
+
125
+ #instructions{
126
+ margin-top: 10px;
127
+ margin-bottom: 10px;
128
+ text-align: center;
129
+ }
130
+
131
+
132
+
133
+
134
+
public/data-leak/face.png ADDED

Git LFS Details

  • SHA256: 0add1bf38c1dd5500cca94c45eb9b1c0cffcd0f588983c3af3e90aa4b2527057
  • Pointer size: 131 Bytes
  • Size of remote file: 149 kB
public/data-leak/index.html ADDED
@@ -0,0 +1,170 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ <!--
2
+ @license
3
+ Copyright 2020 Google. All Rights Reserved.
4
+
5
+ Licensed under the Apache License, Version 2.0 (the "License");
6
+ you may not use this file except in compliance with the License.
7
+ You may obtain a copy of the License at
8
+
9
+ http://www.apache.org/licenses/LICENSE-2.0
10
+
11
+ Unless required by applicable law or agreed to in writing, software
12
+ distributed under the License is distributed on an "AS IS" BASIS,
13
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14
+ See the License for the specific language governing permissions and
15
+ limitations under the License.
16
+ -->
17
+
18
+ <!DOCTYPE html>
19
+
20
+ <html>
21
+ <head>
22
+ <meta charset="utf-8">
23
+ <meta name="viewport" content="width=device-width, initial-scale=1">
24
+
25
+ <link rel="apple-touch-icon" sizes="180x180" href="https://pair.withgoogle.com/images/favicon/apple-touch-icon.png">
26
+ <link rel="icon" type="image/png" sizes="32x32" href="https://pair.withgoogle.com/images/favicon/favicon-32x32.png">
27
+ <link rel="icon" type="image/png" sizes="16x16" href="https://pair.withgoogle.com/images/favicon/favicon-16x16.png">
28
+ <link rel="mask-icon" href="https://pair.withgoogle.com/images/favicon/safari-pinned-tab.svg" color="#00695c">
29
+ <link rel="shortcut icon" href="https://pair.withgoogle.com/images/favicon.ico">
30
+
31
+ <script>
32
+ !(function(){
33
+ var url = window.location.href
34
+ if (url.split('#')[0].split('?')[0].slice(-1) != '/' && !url.includes('.html')) window.location = url + '/'
35
+ })()
36
+ </script>
37
+
38
+ <title>Why Some Models Leak Data</title>
39
+ <meta property="og:title" content="Why Some Models Leak Data">
40
+ <meta property="og:url" content="https://pair.withgoogle.com/explorables/data-leak/">
41
+
42
+ <meta name="og:description" content="Machine learning models use large amounts of data, some of which can be sensitive. If they're not trained correctly, sometimes that data is inadvertently revealed.">
43
+ <meta property="og:image" content="https://pair.withgoogle.com/explorables/images/model-inversion.png">
44
+ <meta name="twitter:card" content="summary_large_image">
45
+
46
+ <link rel="stylesheet" type="text/css" href="../style.css">
47
+
48
+ <link href='https://fonts.googleapis.com/css?family=Roboto+Slab:400,500,700|Roboto:700,500,300' rel='stylesheet' type='text/css'>
49
+ <link href="https://fonts.googleapis.com/css?family=Google+Sans:400,500,700" rel="stylesheet">
50
+
51
+ <meta name="viewport" content="width=device-width">
52
+ </head>
53
+ <body>
54
+ <div class='header'>
55
+ <div class='header-left'>
56
+ <a href='https://pair.withgoogle.com/'>
57
+ <img src='../images/pair-logo.svg' style='width: 100px'></img>
58
+ </a>
59
+ <a href='../'>Explorables</a>
60
+ </div>
61
+ </div>
62
+
63
+ <h1 class='headline'>Why Some Models Leak Data</h1>
64
+ <div class="post-summary">Machine learning models use large amounts of data, some of which can be sensitive. If they're not trained correctly, sometimes that data is inadvertently revealed.</div>
65
+ <link rel="stylesheet" href="style.css">
66
+
67
+
68
+ <p>Let’s take a look at a game of soccer. </p>
69
+ <link rel="stylesheet" href="style.css">
70
+
71
+ <div id='field-grass' class='field'></div>
72
+
73
+ <p><br></br> </p>
74
+ <p>Using the position of each player as training data, we can teach a model to predict which team would get to a loose ball first at each spot on the field, indicated by the color of the pixel.</p>
75
+ <div id='field-prediction' class='field'></div>
76
+
77
+ <p>It updates in real-time—drag the players around to see the model change.</p>
78
+ <p><br></br> </p>
79
+ <p>This model reveals quite a lot about the data used to train it. Even without the actual positions of the players, it is simple to see where players might be. </p>
80
+ <div id='field-playerless' class='field'></div>
81
+
82
+ <p>Click this button to <span class="button" id="player-button">move the players</span> </p>
83
+ <p>Take a guess at where the yellow team’s goalie is now, then check their actual position. How close were you?</p>
84
+ <h3>Sensitive Salary Data</h3>
85
+
86
+ <p>In this specific soccer example, being able to make educated guesses about the data a model was trained on doesn’t matter too much. But what if our data points represent something more sensitive?</p>
87
+ <div id='field-scatter' class='field'></div>
88
+
89
+ <p>We’ve fed the same numbers into the model, but now they represent salary data instead of soccer data. Building models like this is a common technique to <a href="https://www.eeoc.gov/laws/guidance/section-10-compensation-discrimination#c.%20Using%20More%20Sophisticated%20Statistical%20Techniques%20to%20Evaluate">detect discrimination</a>. A union might test if a company is paying men and women fairly by building a salary model that takes into account years of experience. They can then <a href="https://postguild.org/2019-pay-study/">publish</a> the results to bring pressure for change or show improvement.</p>
90
+ <p>In this hypothetical salary study, even though no individual salaries have been published, it is easy to infer the salary of the newest male hire. And carefully cross referencing public start dates on LinkedIn with the model could almost perfectly reveal everyone’s salary.</p>
91
+ <p>Because the model here is so flexible (there are hundreds of square patches with independently calculated predictions) and we have so few data points (just 22 people), it is able to “memorize” individual data points. If we’re looking to share information about patterns in salaries, a simpler and more constrained model like a linear regression might be more appropriate. </p>
92
+ <div id='field-regression' class='field'></div>
93
+
94
+ <p>By boiling down the 22 data points to two lines we’re able to see broad trends without being able to guess anyone’s salary.</p>
95
+ <h3>Subtle Leaks</h3>
96
+
97
+ <p>Removing complexity isn’t a complete solution though. Depending on how the data is distributed, even a simple line can inadvertently reveal information.</p>
98
+ <div id='field-regression-leak' class='field'></div>
99
+
100
+ <p>In this company, almost all the men started several years ago, so the slope of the line is especially sensitive to the salary of the new hire. </p>
101
+ <p>Is their salary <span class="button" id="high-button">higher or lower</span> than average? Based on the line, we can make a pretty good guess.</p>
102
+ <p>Notice that changing the salary of someone with a more common tenure barely moves the line. In general, more typical data points are less susceptible to being leaked. This sets up a tricky trade off: we want models to learn about edge cases while being sure they haven’t memorized individual data points.</p>
103
+ <h3>Real World Data</h3>
104
+
105
+ <p>Models of real world data are often quite complex—this can improve accuracy, but makes them <a href="https://blog.tensorflow.org/2020/06/introducing-new-privacy-testing-library.html">more susceptible</a> to unexpectedly leaking information. Medical models have inadvertently revealed <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4827719/">patients’ genetic markers</a>. Language models have memorized <a href="https://bair.berkeley.edu/blog/2019/08/13/memorization/">credit card numbers</a>. Faces can even be <a href="https://rist.tech.cornell.edu/papers/mi-ccs.pdf">reconstructed</a> from image models: </p>
106
+ <div class='face-container'><img src='face.png'></div>
107
+
108
+ <p><a href="https://rist.tech.cornell.edu/papers/mi-ccs.pdf">Fredrikson et al</a> were able to extract the image on the left by repeatedly querying a facial recognition API. It isn’t an exact match with the individual’s actual face (on the right), but this attack only required access to the model’s predictions, not its internal state. </p>
109
+ <h3>Protecting Private Data</h3>
110
+
111
+ <p>Training models with <a href="http://www.cleverhans.io/privacy/2018/04/29/privacy-and-machine-learning.html">differential privacy</a> stops the training data from leaking by limiting how much the model can learn from any one data point. Differentially private models are still at the cutting edge of research, but they’re being packaged into <a href="https://blog.tensorflow.org/2019/03/introducing-tensorflow-privacy-learning.html">machine learning frameworks</a>, making them much easier to use. When it isn’t possible to train differentially private models, there are also tools that can <a href="https://github.com/tensorflow/privacy/tree/master/tensorflow_privacy/privacy/membership_inference_attack">measure</a> how much data is the model memorizing. Also, standard techniques such as aggregation and limiting how much data a single source can contribute are still useful and usually improve the privacy of the model.</p>
112
+ <p>As we saw in the <a href="https://pair.withgoogle.com/explorables/anonymization/">Collecting Sensitive Information Explorable</a>, adding enough random noise with differential privacy to protect outliers like the new hire can increase the amount of data required to reach a good level of accuracy. Depending on the application, the constraints of differential privacy could even improve the model—for instance, not learning too much from one data point can help prevent <a href="https://openreview.net/forum?id=r1xyx3R9tQ">overfitting</a>. </p>
113
+ <p>Given the increasing utility of machine learning models for many real-world tasks, it’s clear that more and more systems, devices and apps will be powered, to some extent, by machine learning in the future. While <a href="https://owasp.org/www-project-top-ten/">standard privacy best practices</a> developed for non-machine learning systems still apply to those with machine learning, the introduction of machine learning introduces new challenges, including the ability of the model to memorize some specific training data points and thus be vulnerable to privacy attacks that seek to extract this data from the model. Fortunately, techniques such as differential privacy exist that can be helpful in overcoming this specific challenge. Just as with other areas of <a href="https://ai.google/responsibilities/responsible-ai-practices/">Responsible AI</a>, it’s important to be aware of these new challenges that come along with machine learning and what steps can be taken to mitigate them. </p>
114
+ <h3>Credits</h3>
115
+
116
+ <p>Adam Pearce and Ellen Jiang // December 2020</p>
117
+ <p>Thanks to Andreas Terzis, Ben Wedin, Carey Radebaugh, David Weinberger, Emily Reif, Fernanda Viégas, Hal Abelson, Kristen Olson, Martin Wattenberg, Michael Terry, Miguel Guevara, Thomas Steinke, Yannick Assogba, Zan Armstrong and our other colleagues at Google for their help with this piece.</p>
118
+ <h3>More Explorables</h3>
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+
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+
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+ var colors = ['#FDE100', '#EE2737' ]
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+ var colors = ['#FDE100', '#8e068e' ]
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+ // var colors = ['#2979FF', '#FF6D00']
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+ // var colors = ['#2979FF', '#FDD835']
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+ // var colors = ['#f1a340', '#998ec3' ]
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+ globalPlayers = decoratePlayers(players0)
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+ function decoratePlayers(rawPlayers){
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+ d.color = i < 11 ? colors[0] : colors[1]
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+ d.isRed = i < 11 ? 1 : 0
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+ return players
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+ var playerOptions1 = [playersleaklow, playersleakhigh]
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+
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+ // addPlayAnimation(globalPlayers, '#field-grass', playerOptions0, 'mouseenter')
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+ addPlayAnimation(globalPlayers, '#player-button', playerOptions0)
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+ addPlayAnimation(globalPlayersH, '#high-button', playerOptions1, 'click', true)
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+
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+ function addPlayAnimation(players, selStr, playerOptions, eventStr='click', loop=false){
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+ if (loop) {
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+ }
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+ if (selStr) {
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+ d3.selectAll(selStr).on(eventStr, function() {
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+ if (loop) window.loopInterval.stop() // stop looping if the higher-or-lower button is pressed
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+ playAnimation()
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+ })
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+ }
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+
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+ var curPlayerIndex = 0
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+ function playAnimation(){
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+ curPlayerIndex++
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+ curPlayerIndex = curPlayerIndex % playerOptions.length
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+
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+ var nextPlayers = playerOptions[curPlayerIndex]
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+ .map(d => d.map(d => d*s))
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+
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+ var interpolates = players
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+ .map((d, i) => d3.interpolate(d, nextPlayers[i]))
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+
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+ var dur = 1000
78
+ if (playerOptions.animationTimer) playerOptions.animationTimer.stop()
79
+ playerOptions.animationTimer = d3.timer(time => {
80
+ var t = d3.clamp(0, time/dur, 1)
81
+
82
+ interpolates.forEach((interpolate, i) => {
83
+ var [x, y] = interpolate(t)
84
+
85
+ players[i][0] = x
86
+ players[i][1] = y
87
+ })
88
+
89
+ players.renderAll(t)
90
+
91
+ if (t == 1) playerOptions.animationTimer.stop()
92
+ })
93
+ }
94
+ }
95
+
96
+ function stopAnimations(){
97
+ if (playerOptions0.animationTimer) playerOptions0.animationTimer.stop()
98
+ if (playerOptions1.animationTimer) playerOptions1.animationTimer.stop()
99
+ }
100
+
101
+
102
+ function initField(name){
103
+ var marginBottom = 30
104
+ var marginTop = 35
105
+ var sel = d3.select('#field-' + name).html('').classed('field', true)
106
+ .st({marginBottom: marginBottom, marginTop: marginTop})
107
+
108
+ window.c = d3.conventions({
109
+ sel,
110
+ margin: {top: 0, left: 0, right: 0, bottom: 0},
111
+ width,
112
+ height,
113
+ layers: 'dcs'
114
+ })
115
+
116
+ var [divSel, ctx, svg] = c.layers
117
+
118
+ c.svg = c.svg.append('g').translate([.5, .5])
119
+
120
+ var isRegression = name.includes('regression')
121
+ var isVisiblePoints = name != 'playerless'
122
+
123
+ var pointName = isRegression || name == 'scatter' ? ' People' : ' Players'
124
+ var buttonSel = sel.append('div.button')
125
+ .st({top: pointName == ' People' ? 28 : -8, right: -8, position: 'absolute', background: '#fff'})
126
+ .text((isVisiblePoints ? 'Hide' : 'Show') + pointName)
127
+ .on('click', () => {
128
+ isVisiblePoints = !isVisiblePoints
129
+ buttonSel.text((isVisiblePoints ? 'Hide' : 'Show') + pointName)
130
+ playerSel.st({opacity: isVisiblePoints ? 1 : 0})
131
+ textSel.st({opacity: isVisiblePoints ? 1 : 0})
132
+ })
133
+
134
+ if (name == 'grass'){
135
+ c.svg.append('rect').at({width, height, fill: '#34A853'})
136
+ divSel.append('div.pointer').append('div')
137
+ }
138
+
139
+ var roundNum = d => isNaN(d) ? d : Math.round(d)
140
+ var chalkSel = c.svg.append('g')
141
+ chalkSel.append('path.white')
142
+ .at({d: ['M', Math.round(width/2), 0, 'V', height].map(roundNum).join(' '),})
143
+ chalkSel.append('circle.white')
144
+ .at({r: 10*s}).translate([width/2, height/2])
145
+ chalkSel.append('path.white')
146
+ .at({d: ['M', 0, (75 - 44)/2*s, 'h', 18*s, 'v', 44*s, 'H', 0].map(roundNum).join(' '),})
147
+ chalkSel.append('path.white')
148
+ .at({d: ['M', width, (75 - 44)/2*s, 'h', -18*s, 'v', 44*s, 'H', width].map(roundNum).join(' '),})
149
+
150
+ var drag = d3.drag()
151
+ .on('drag', function(d){
152
+ stopAnimations()
153
+ if (name === 'regression-leak') {
154
+ window.loopInterval.stop()
155
+ }
156
+
157
+ d[0] = Math.round(Math.max(0, Math.min(width, d3.event.x)))
158
+ d[1] = Math.round(Math.max(0, Math.min(height, d3.event.y)))
159
+
160
+ players.renderAll()
161
+ })
162
+ .subject(function(d){ return {x: d[0], y: d[1]} })
163
+
164
+
165
+ var players = name == 'regression-leak' ? globalPlayersH : globalPlayers
166
+
167
+ if (isRegression){
168
+ var byColor = d3.nestBy(players, d => d.color)
169
+ var regressionSel = c.svg.appendMany('path', byColor)
170
+ .at({stroke: d => color2dark[d.key], strokeWidth: 3.5, strokeDasharray: '4 4'})
171
+ .each(function(d){ d.sel = d3.select(this) })
172
+ }
173
+
174
+ var bgPlayerSel = c.svg.appendMany('circle.player', players)
175
+ .at({r: 15, fill: d => d.color, opacity: 0})
176
+ .translate(d => d)
177
+ .call(drag)
178
+
179
+ var playerSel = c.svg.appendMany('circle.player', players)
180
+ .at({r: 5, fill: d => d.color, opacity: isVisiblePoints ? 1 : 0})
181
+ .translate(d => d)
182
+ .call(drag)
183
+
184
+ var textSel = c.svg.appendMany('text.chart-title', name == 'playerless' ? [players[0], players[20]] : [players[0]])
185
+ .text(name == 'regression-leak' || name == 'scatter' ? 'New Hire' : name == 'playerless' ? 'Goalie' : '')
186
+ .st({pointerEvent: 'none'})
187
+ .at({dy: '.33em', opacity: isVisiblePoints ? 1 : 0, dx: (d, i) => i ? -8 : 8, textAnchor: (d, i) => i ? 'end' : 'start'})
188
+
189
+ if (name == 'scatter' || isRegression){
190
+ sel.st({marginBottom: marginBottom + 70})
191
+ sel.insert('div.axis.chart-title', ':first-child')
192
+ .html(`
193
+ <span style='background: ${colors[0]}'>Men's</span>
194
+ and
195
+ <span style='background: ${colors[1]}'>Women's</span>
196
+ Salaries`)
197
+ .st({marginBottom: 10, fontSize: 16})
198
+
199
+ c.x.domain([0, 20])
200
+ c.y.domain([40000, 90000])
201
+
202
+ c.xAxis.ticks(5)
203
+ c.yAxis.ticks(5).tickFormat(d => {
204
+ var rv = d3.format(',')(d).replace('9', '$9')
205
+ if (isMobile){
206
+ rv = rv.replace(',000', 'k').replace('40k', '')
207
+ }
208
+
209
+ return rv
210
+ })
211
+
212
+
213
+
214
+ chalkSel.selectAll('*').remove()
215
+ chalkSel.appendMany('path.white', c.x.ticks(5))
216
+ .at({d: d => ['M', Math.round(c.x(d)), '0 V ', c.height].join(' ')})
217
+
218
+ chalkSel.appendMany('path.white', c.y.ticks(5))
219
+ .at({d: d => ['M 0', Math.round(c.y(d)), 'H', c.width].join(' ')})
220
+
221
+ d3.drawAxis(c)
222
+ c.svg.selectAll('.axis').lower()
223
+ if (isMobile){
224
+ c.svg.selectAll('.y text')
225
+ .translate([35, 10])
226
+ .st({fill: name == 'scatter' ? '#000' : ''})
227
+
228
+ c.svg.selectAll('.x text').filter(d => d == 20).at({textAnchor: 'end'})
229
+ c.svg.selectAll('.x text').filter(d => d == 0).at({textAnchor: 'start'})
230
+ }
231
+
232
+
233
+ c.svg.select('.x').append('text.chart-title')
234
+ .text('Years at Company →')
235
+ .translate([c.width/2, 43])
236
+ .at({textAnchor: 'middle'})
237
+ }
238
+
239
+
240
+
241
+ render()
242
+ players.renderFns.push(render)
243
+ function render(){
244
+ renderSVG()
245
+ if (name != 'grass' && !isRegression)renderCanvas()
246
+ if (isRegression) renderRegression()
247
+ }
248
+
249
+ function renderSVG(){
250
+ if (playerSel){
251
+ playerSel.translate(d => d)
252
+ bgPlayerSel.translate(d => d)
253
+ textSel.translate(d => d)
254
+ }
255
+ }
256
+
257
+ function renderCanvas(){
258
+ cells.forEach(d => {
259
+ players.forEach(p => {
260
+ var dx = p[0] - d[0] - cs/2
261
+ var dy = p[1] - d[1] - cs/2
262
+
263
+ // p.dist = Math.sqrt(dx*dx + dy*dy)
264
+ // p.dist = dx*dx + dy*dy
265
+ p.dist = Math.pow(dx*dx + dy*dy, 1.5) + .00001
266
+ p.weight = 1/p.dist
267
+
268
+ return p.dist
269
+ })
270
+
271
+ var sum = d3.sum(players, d => d.isRed*d.weight)
272
+ var wsum = d3.sum(players, d => d.weight)
273
+
274
+ ctx.fillStyle = colorScale(1 - sum/wsum)
275
+
276
+ ctx.fillRect(d[0], d[1], cs, cs)
277
+ })
278
+ }
279
+
280
+ function renderRegression(){
281
+ byColor.forEach(d => {
282
+ var l = ss.linearRegressionLine(ss.linearRegression(d))
283
+
284
+ var x0 = 0
285
+ var x1 = c.width
286
+
287
+ d.sel.at({d: `M ${x0} ${l(x0)} L ${x1} ${l(x1)}`})
288
+ })
289
+ }
290
+ }
291
+
292
+ 'grass prediction playerless scatter regression regression-leak'
293
+ .split(' ')
294
+ .forEach(initField)
295
+
296
+
public/data-leak/style.css ADDED
@@ -0,0 +1,176 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ body{
2
+
3
+ }
4
+
5
+
6
+ p{
7
+ margin-left: 0px auto;
8
+ margin-right: 0px auto;
9
+ margin: 0px auto;
10
+ margin-top: 1em;
11
+ margin-bottom: 1em;
12
+ }
13
+ h3, .post-summary, h1x, p{
14
+ max-width: 650px;
15
+ }
16
+
17
+ #recirc{
18
+ max-width: 760px;
19
+ }
20
+
21
+
22
+ .white{
23
+ stroke: #fff;
24
+ fill: none;
25
+ stroke-width: 1;
26
+ }
27
+
28
+ .player{
29
+ cursor: pointer;
30
+ stroke: #000;
31
+ stroke-width: 2;
32
+ }
33
+
34
+ .button{
35
+ border: .5px solid #000;
36
+ /*border-bottom-width: 4px;*/
37
+ /*border-right-width: 4px;*/
38
+ border-radius: 8px;
39
+ padding: 4px;
40
+ margin: 2px;
41
+ cursor: pointer;
42
+ display: inline-block;
43
+ /*font-family: monospace;*/
44
+ /*font-family: 'Roboto Slab', serif;*/
45
+ /*font-size: 16px;*/
46
+ user-select: none;
47
+ font-family: 'Google Sans', sans-serif;
48
+ font-family: 'Roboto', Helvetica, sans-serif;
49
+
50
+ /*font-weight: 300;*/
51
+ }
52
+
53
+ @media (min-width: 800px){
54
+ .button{
55
+ margin-bottom: -100px;
56
+ }
57
+ }
58
+
59
+ .inline-button{
60
+ display: inline;
61
+ }
62
+
63
+ .button:hover{
64
+ background: #eee !important;
65
+ }
66
+
67
+ .button:active{
68
+ }
69
+
70
+ canvas{
71
+ opacity: .9;
72
+ }
73
+
74
+ svg{
75
+ overflow: visible;
76
+ }
77
+
78
+ .axis{
79
+ font-size: 12px;
80
+
81
+ }
82
+ .axis{
83
+ color: #000;
84
+ }
85
+ .axis text{
86
+ fill: #999;
87
+ font-family: 'Roboto', Helvetica, sans-serif;
88
+ }
89
+ .axis text.chart-title{
90
+ fill: #000;
91
+ font-size: 16px;
92
+ }
93
+ .axis line{
94
+ stroke: #ccc;
95
+ display: none;
96
+ }
97
+
98
+ .domain{
99
+ stroke: #ccc;
100
+ display: none;
101
+ }
102
+
103
+ text, .chart-title{
104
+ user-select: none;
105
+ /*pointer-events: none;*/
106
+ }
107
+
108
+
109
+ .field{
110
+ font-family: 'Google Sans', sans-serif;
111
+ font-family: 'Roboto', Helvetica, sans-serif;
112
+ margin-top: 10px;
113
+ }
114
+
115
+ .chart-title span{
116
+ padding: 4px;
117
+ }
118
+
119
+ .chart-title span:last-child{
120
+ color: #fff;
121
+ }
122
+
123
+ .chart-title span:first-child{
124
+ color: #000;
125
+ }
126
+
127
+ #field-regression .white, #field-regression-leak .white{
128
+ stroke: #ccc;
129
+ }
130
+
131
+ #field-grass .button, #field-prediction .button{
132
+ display: none;
133
+ }
134
+
135
+ .face-container{
136
+ max-width: 400px;
137
+
138
+ margin: 0px auto;
139
+ }
140
+ .face-container img{
141
+ width: 100%;
142
+ }
143
+
144
+ .post-summary {
145
+ margin-bottom: 40px;
146
+ }
147
+
148
+ p {
149
+ margin: 10 auto;
150
+ }
151
+
152
+
153
+
154
+ .pointer{
155
+ height: 0px;
156
+ position: relative;
157
+ }
158
+ .pointer div {
159
+ overflow: visible;
160
+ content: "";
161
+ background-image: url(https://pair-code.github.io/interpretability/bert-tree/pointer.svg);
162
+ width: 27px;
163
+ height: 27px;
164
+ position: absolute;
165
+ left: -35px;
166
+ top: 0px;
167
+ }
168
+
169
+
170
+ .face-container:after{
171
+ content: "M. Fredrikson, S. Jha, and T. Ristenpart, “Model inversion attacks that exploit confidence information and basic countermeasures,” in CCS, 2015.";
172
+ font-size: 12px;
173
+ color: #888;
174
+ line-height: 14px;
175
+ display: block;
176
+ }
public/dataset-worldviews/README.md ADDED
@@ -0,0 +1,6 @@
 
 
 
 
 
 
 
1
+ ## Photo todos
2
+
3
+ x highlight the active button
4
+ x firing when not expected?
5
+ x clear timer when clicked
6
+ - maybe convert to HTML?
public/dataset-worldviews/img/confusing_pointiness.png ADDED

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