Delete summ.py
Browse files
summ.py
DELETED
@@ -1,133 +0,0 @@
|
|
1 |
-
import logging
|
2 |
-
|
3 |
-
import torch
|
4 |
-
from tqdm.auto import tqdm
|
5 |
-
from transformers import AutoModelForSeq2SeqLM, AutoTokenizer
|
6 |
-
|
7 |
-
|
8 |
-
def load_model_and_tokenizer(model_name):
|
9 |
-
"""
|
10 |
-
load_model_and_tokenizer - a function that loads a model and tokenizer from huggingface
|
11 |
-
Args:
|
12 |
-
model_name (str): the name of the model to load
|
13 |
-
Returns:
|
14 |
-
AutoModelForSeq2SeqLM: the model
|
15 |
-
AutoTokenizer: the tokenizer
|
16 |
-
"""
|
17 |
-
|
18 |
-
model = AutoModelForSeq2SeqLM.from_pretrained(
|
19 |
-
model_name,
|
20 |
-
# low_cpu_mem_usage=True,
|
21 |
-
# use_cache=False,
|
22 |
-
)
|
23 |
-
tokenizer = AutoTokenizer.from_pretrained(model_name)
|
24 |
-
model = model.to("cuda") if torch.cuda.is_available() else model
|
25 |
-
|
26 |
-
logging.info(f"Loaded model {model_name}")
|
27 |
-
return model, tokenizer
|
28 |
-
|
29 |
-
|
30 |
-
def summarize_and_score(ids, mask, model, tokenizer, **kwargs):
|
31 |
-
"""
|
32 |
-
summarize_and_score - given a batch of ids and a mask, return a summary and a score for the summary
|
33 |
-
Args:
|
34 |
-
ids (): the batch of ids
|
35 |
-
mask (): the attention mask for the batch
|
36 |
-
model (): the model to use for summarization
|
37 |
-
tokenizer (): the tokenizer to use for summarization
|
38 |
-
Returns:
|
39 |
-
str: the summary of the batch
|
40 |
-
"""
|
41 |
-
|
42 |
-
ids = ids[None, :]
|
43 |
-
mask = mask[None, :]
|
44 |
-
|
45 |
-
input_ids = ids.to("cuda") if torch.cuda.is_available() else ids
|
46 |
-
attention_mask = mask.to("cuda") if torch.cuda.is_available() else mask
|
47 |
-
|
48 |
-
global_attention_mask = torch.zeros_like(attention_mask)
|
49 |
-
# put global attention on <s> token
|
50 |
-
global_attention_mask[:, 0] = 1
|
51 |
-
|
52 |
-
summary_pred_ids = model.generate(
|
53 |
-
input_ids,
|
54 |
-
attention_mask=attention_mask,
|
55 |
-
global_attention_mask=global_attention_mask,
|
56 |
-
output_scores=True,
|
57 |
-
return_dict_in_generate=True,
|
58 |
-
**kwargs,
|
59 |
-
)
|
60 |
-
summary = tokenizer.batch_decode(
|
61 |
-
summary_pred_ids.sequences,
|
62 |
-
skip_special_tokens=True,
|
63 |
-
remove_invalid_values=True,
|
64 |
-
)
|
65 |
-
score = round(summary_pred_ids.sequences_scores.cpu().numpy()[0], 4)
|
66 |
-
|
67 |
-
return summary, score
|
68 |
-
|
69 |
-
|
70 |
-
def summarize_via_tokenbatches(
|
71 |
-
input_text: str,
|
72 |
-
model,
|
73 |
-
tokenizer,
|
74 |
-
batch_length=2048,
|
75 |
-
batch_stride=16,
|
76 |
-
**kwargs,
|
77 |
-
):
|
78 |
-
"""
|
79 |
-
summarize_via_tokenbatches - a function that takes a string and returns a summary
|
80 |
-
Args:
|
81 |
-
input_text (str): the text to summarize
|
82 |
-
model (): the model to use for summarization
|
83 |
-
tokenizer (): the tokenizer to use for summarization
|
84 |
-
batch_length (int, optional): the length of each batch. Defaults to 2048.
|
85 |
-
batch_stride (int, optional): the stride of each batch. Defaults to 16. The stride is the number of tokens that overlap between batches.
|
86 |
-
Returns:
|
87 |
-
str: the summary
|
88 |
-
"""
|
89 |
-
# log all input parameters
|
90 |
-
if batch_length < 512:
|
91 |
-
batch_length = 512
|
92 |
-
print("WARNING: batch_length was set to 512")
|
93 |
-
print(
|
94 |
-
f"input parameters: {kwargs}, batch_length={batch_length}, batch_stride={batch_stride}"
|
95 |
-
)
|
96 |
-
encoded_input = tokenizer(
|
97 |
-
input_text,
|
98 |
-
padding="max_length",
|
99 |
-
truncation=True,
|
100 |
-
max_length=batch_length,
|
101 |
-
stride=batch_stride,
|
102 |
-
return_overflowing_tokens=True,
|
103 |
-
add_special_tokens=False,
|
104 |
-
return_tensors="pt",
|
105 |
-
)
|
106 |
-
|
107 |
-
in_id_arr, att_arr = encoded_input.input_ids, encoded_input.attention_mask
|
108 |
-
gen_summaries = []
|
109 |
-
|
110 |
-
pbar = tqdm(total=len(in_id_arr))
|
111 |
-
|
112 |
-
for _id, _mask in zip(in_id_arr, att_arr):
|
113 |
-
|
114 |
-
result, score = summarize_and_score(
|
115 |
-
ids=_id,
|
116 |
-
mask=_mask,
|
117 |
-
model=model,
|
118 |
-
tokenizer=tokenizer,
|
119 |
-
**kwargs,
|
120 |
-
)
|
121 |
-
score = round(float(score), 4)
|
122 |
-
_sum = {
|
123 |
-
"input_tokens": _id,
|
124 |
-
"summary": result,
|
125 |
-
"summary_score": score,
|
126 |
-
}
|
127 |
-
gen_summaries.append(_sum)
|
128 |
-
print(f"\t{result[0]}\nScore:\t{score}")
|
129 |
-
pbar.update()
|
130 |
-
|
131 |
-
pbar.close()
|
132 |
-
|
133 |
-
return gen_summaries
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|