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---
language: en
license: apache-2.0
library_name: span-marker
tags:
- span-marker
- token-classification
- ner
- named-entity-recognition
- generated_from_span_marker_trainer
datasets:
- midas/inspec
metrics:
- precision
- recall
- f1
widget:
- text: 'Genetic algorithm guided selection: variable selection and subset selection
A novel genetic algorithm guided selection method, GAS, has been described.
The method utilizes a simple encoding scheme which can represent both compounds
and variables used to construct a QSAR/QSPR model. A genetic algorithm is then
utilized to simultaneously optimize the encoded variables that include both descriptors
and compound subsets. The GAS method generates multiple models each applying
to a subset of the compounds. Typically the subsets represent clusters with different
chemotypes. Also a procedure based on molecular similarity is presented to determine
which model should be applied to a given test set compound. The variable selection
method implemented in GAS has been tested and compared using the Selwood data
set -LRB- n = 31 compounds; nu = 53 descriptors -RRB-. The results showed that
the method is comparable to other published methods. The subset selection method
implemented in GAS has been first tested using an artificial data set -LRB- n
= 100 points; nu = 1 descriptor -RRB- to examine its ability to subset data points
and second applied to analyze the XLOGP data set -LRB- n = 1831 compounds; nu
= 126 descriptors -RRB-. The method is able to correctly identify artificial
data points belonging to various subsets. The analysis of the XLOGP data set
shows that the subset selection method can be useful in improving a QSAR/QSPR
model when the variable selection method fails'
- text: Presentation media, information complexity, and learning outcomes Multimedia
computing provides a variety of information presentation modality combinations.
Educators have observed that visuals enhance learning which suggests that multimedia
presentations should be superior to text-only and text with static pictures in
facilitating optimal human information processing and, therefore, comprehension.
The article reports the findings from a 3 -LRB- text-only, overhead slides,
and multimedia presentation -RRB- * 2 -LRB- high and low information complexity
-RRB- factorial experiment. Subjects read a text script, viewed an acetate overhead
slide presentation, or viewed a multimedia presentation depicting the greenhouse
effect -LRB- low complexity -RRB- or photocopier operation -LRB- high complexity
-RRB-. Multimedia was superior to text-only and overhead slides for comprehension.
Information complexity diminished comprehension and perceived presentation quality.
Multimedia was able to reduce the negative impact of information complexity
on comprehension and increase the extent of sustained attention to the presentation.
These findings suggest that multimedia presentations invoke the use of both
the verbal and visual working memory channels resulting in a reduction of the
cognitive load imposed by increased information complexity. Moreover, multimedia
superiority in facilitating comprehension goes beyond its ability to increase
sustained attention; the quality and effectiveness of information processing
attained -LRB- i.e., use of verbal and visual working memory -RRB- is also significant
- text: Adaptive filtering for noise reduction in hue saturation intensity color space
Even though the hue saturation intensity -LRB- HSI -RRB- color model has been
widely used in color image processing and analysis, the conversion formulas from
the RGB color model to HSI are nonlinear and complicated in comparison with the
conversion formulas of other color models. When an RGB image is degraded by random
Gaussian noise, this nonlinearity leads to a nonuniform noise distribution in
HSI, making accurate image analysis more difficult. We have analyzed the noise
characteristics of the HSI color model and developed an adaptive spatial filtering
method to reduce the magnitude of noise and the nonuniformity of noise variance
in the HSI color space. With this adaptive filtering method, the filter kernel
for each pixel is dynamically adjusted, depending on the values of intensity
and saturation. In our experiments we have filtered the saturation and hue components
and generated edge maps from color gradients. We have found that by using the
adaptive filtering method, the minimum error rate in edge detection improves
by approximately 15%
- text: Restoration of broadband imagery steered with a liquid-crystal optical phased
array In many imaging applications, it is highly desirable to replace mechanical
beam-steering components -LRB- i.e., mirrors and gimbals -RRB- with a nonmechanical
device. One such device is a nematic liquid crystal optical phased array -LRB-
LCOPA -RRB-. An LCOPA can implement a blazed phase grating to steer the incident
light. However, when a phase grating is used in a broadband imaging system,
two adverse effects can occur. First, dispersion will cause different incident
wavelengths arriving at the same angle to be steered to different output angles,
causing chromatic aberrations in the image plane. Second, the device will
steer energy not only to the first diffraction order, but to others as well.
This multiple-order effect results in multiple copies of the scene appearing in
the image plane. We describe a digital image restoration technique designed to
overcome these degradations. The proposed postprocessing technique is based on
a Wiener deconvolution filter. The technique, however, is applicable only to
scenes containing objects with approximately constant reflectivities over the
spectral region of interest. Experimental results are presented to demonstrate
the effectiveness of this technique
- text: A comparison of computational color constancy Algorithms. II. Experiments
with image data For pt.I see ibid., vol. 11, no. 9, p.972-84 -LRB- 2002 -RRB-.
We test a number of the leading computational color constancy algorithms using
a comprehensive set of images. These were of 33 different scenes under 11 different
sources representative of common illumination conditions. The algorithms studied
include two gray world methods, a version of the Retinex method, several variants
of Forsyth's -LRB- 1990 -RRB- gamut-mapping method, Cardei et al.'s -LRB- 2000
-RRB- neural net method, and Finlayson et al.'s color by correlation method
-LRB- Finlayson et al. 1997, 2001; Hubel and Finlayson 2000 -RRB-. We discuss
a number of issues in applying color constancy ideas to image data, and study
in depth the effect of different preprocessing strategies. We compare the performance
of the algorithms on image data with their performance on synthesized data. All
data used for this study are available online at http://www.cs.sfu.ca/~color/data,
and implementations for most of the algorithms are also available -LRB- http://www.cs.sfu.ca/~color/code
-RRB-. Experiments with synthesized data -LRB- part one of this paper -RRB- suggested
that the methods which emphasize the use of the input data statistics, specifically
color by correlation and the neural net algorithm, are potentially the most effective
at estimating the chromaticity of the scene illuminant. Unfortunately, we were
unable to realize comparable performance on real images. Here exploiting pixel
intensity proved to be more beneficial than exploiting the details of image chromaticity
statistics, and the three-dimensional -LRB- 3-D -RRB- gamut-mapping algorithms
gave the best performance
pipeline_tag: token-classification
co2_eq_emissions:
emissions: 20.795
source: codecarbon
training_type: fine-tuning
on_cloud: false
gpu_model: 1 x NVIDIA GeForce RTX 3090
cpu_model: 13th Gen Intel(R) Core(TM) i7-13700K
ram_total_size: 31.777088165283203
hours_used: 0.137
model-index:
- name: SpanMarker with bert-base-uncased on Inspec
results:
- task:
type: token-classification
name: Named Entity Recognition
dataset:
name: Inspec
type: midas/inspec
split: test
metrics:
- type: f1
value: 0.5934525191548642
name: F1
- type: precision
value: 0.5666149412547107
name: Precision
- type: recall
value: 0.6229588106263709
name: Recall
---
# SpanMarker with bert-base-uncased on Inspec
This is a [SpanMarker](https://github.com/tomaarsen/SpanMarkerNER) model trained on the [Inspec](https://huggingface.co/datasets/midas/inspec) dataset that can be used for Named Entity Recognition. This SpanMarker model uses [bert-base-uncased](https://huggingface.co/bert-base-uncased) as the underlying encoder. See [train.py](train.py) for the training script.
## Model Details
### Model Description
- **Model Type:** SpanMarker
- **Encoder:** [bert-base-uncased](https://huggingface.co/bert-base-uncased)
- **Maximum Sequence Length:** 256 tokens
- **Maximum Entity Length:** 8 words
- **Training Dataset:** [Inspec](https://huggingface.co/datasets/midas/inspec)
- **Language:** en
- **License:** apache-2.0
### Model Sources
- **Repository:** [SpanMarker on GitHub](https://github.com/tomaarsen/SpanMarkerNER)
- **Thesis:** [SpanMarker For Named Entity Recognition](https://raw.githubusercontent.com/tomaarsen/SpanMarkerNER/main/thesis.pdf)
### Model Labels
| Label | Examples |
|:------|:-----------------------------------------------|
| KEY | "Content Atomism", "philosophy of mind", "IBS" |
## Evaluation
### Metrics
| Label | Precision | Recall | F1 |
|:--------|:----------|:-------|:-------|
| **all** | 0.5666 | 0.6230 | 0.5935 |
| KEY | 0.5666 | 0.6230 | 0.5935 |
## Uses
### Direct Use
```python
from span_marker import SpanMarkerModel
# Download from the 🤗 Hub
model = SpanMarkerModel.from_pretrained("tomaarsen/span-marker-bert-base-uncased-keyphrase-inspec")
# Run inference
entities = model.predict("Adaptive filtering for noise reduction in hue saturation intensity color space Even though the hue saturation intensity -LRB- HSI -RRB- color model has been widely used in color image processing and analysis, the conversion formulas from the RGB color model to HSI are nonlinear and complicated in comparison with the conversion formulas of other color models. When an RGB image is degraded by random Gaussian noise, this nonlinearity leads to a nonuniform noise distribution in HSI, making accurate image analysis more difficult. We have analyzed the noise characteristics of the HSI color model and developed an adaptive spatial filtering method to reduce the magnitude of noise and the nonuniformity of noise variance in the HSI color space. With this adaptive filtering method, the filter kernel for each pixel is dynamically adjusted, depending on the values of intensity and saturation. In our experiments we have filtered the saturation and hue components and generated edge maps from color gradients. We have found that by using the adaptive filtering method, the minimum error rate in edge detection improves by approximately 15%")
```
### Downstream Use
You can finetune this model on your own dataset.
<details><summary>Click to expand</summary>
```python
from span_marker import SpanMarkerModel, Trainer
# Download from the 🤗 Hub
model = SpanMarkerModel.from_pretrained("tomaarsen/span-marker-bert-base-uncased-keyphrase-inspec")
# Specify a Dataset with "tokens" and "ner_tag" columns
dataset = load_dataset("conll2003") # For example CoNLL2003
# Initialize a Trainer using the pretrained model & dataset
trainer = Trainer(
model=model,
train_dataset=dataset["train"],
eval_dataset=dataset["validation"],
)
trainer.train()
trainer.save_model("tomaarsen/span-marker-bert-base-uncased-keyphrase-inspec-finetuned")
```
</details>
## Training Details
### Training Set Metrics
| Training set | Min | Median | Max |
|:----------------------|:----|:---------|:----|
| Sentence length | 15 | 138.5327 | 557 |
| Entities per sentence | 0 | 8.2507 | 41 |
### Training Hyperparameters
- learning_rate: 5e-05
- train_batch_size: 32
- eval_batch_size: 32
- seed: 42
- optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
- lr_scheduler_type: linear
- lr_scheduler_warmup_ratio: 0.1
- num_epochs: 3
### Environmental Impact
Carbon emissions were measured using [CodeCarbon](https://github.com/mlco2/codecarbon).
- **Carbon Emitted**: 0.021 kg of CO2
- **Hours Used**: 0.137 hours
### Training Hardware
- **On Cloud**: No
- **GPU Model**: 1 x NVIDIA GeForce RTX 3090
- **CPU Model**: 13th Gen Intel(R) Core(TM) i7-13700K
- **RAM Size**: 31.78 GB
### Framework Versions
- Python: 3.9.16
- SpanMarker: 1.3.1.dev
- Transformers : 4.29.2
- PyTorch: 2.0.1+cu118
- Datasets: 2.14.3
- Tokenizers: 0.13.2 |