Upload 15 files
Browse files- .gitattributes +10 -35
- README.md +164 -0
- config.json +31 -0
- generation_config.json +6 -0
- merges.txt +0 -0
- onnx/config.json +38 -0
- onnx/generation_config.json +6 -0
- onnx/merges.txt +0 -0
- onnx/special_tokens_map.json +5 -0
- onnx/tokenizer.json +0 -0
- onnx/tokenizer_config.json +9 -0
- onnx/vocab.json +0 -0
- tokenizer.json +0 -0
- tokenizer_config.json +1 -0
- vocab.json +0 -0
.gitattributes
CHANGED
@@ -1,35 +1,10 @@
|
|
1 |
-
*.
|
2 |
-
*.
|
3 |
-
*.bin filter=lfs diff=lfs merge=lfs -text
|
4 |
-
*.
|
5 |
-
*.
|
6 |
-
*.
|
7 |
-
*.
|
8 |
-
*.
|
9 |
-
*.
|
10 |
-
|
11 |
-
*.mlmodel filter=lfs diff=lfs merge=lfs -text
|
12 |
-
*.model filter=lfs diff=lfs merge=lfs -text
|
13 |
-
*.msgpack filter=lfs diff=lfs merge=lfs -text
|
14 |
-
*.npy filter=lfs diff=lfs merge=lfs -text
|
15 |
-
*.npz filter=lfs diff=lfs merge=lfs -text
|
16 |
-
*.onnx filter=lfs diff=lfs merge=lfs -text
|
17 |
-
*.ot filter=lfs diff=lfs merge=lfs -text
|
18 |
-
*.parquet filter=lfs diff=lfs merge=lfs -text
|
19 |
-
*.pb filter=lfs diff=lfs merge=lfs -text
|
20 |
-
*.pickle filter=lfs diff=lfs merge=lfs -text
|
21 |
-
*.pkl filter=lfs diff=lfs merge=lfs -text
|
22 |
-
*.pt filter=lfs diff=lfs merge=lfs -text
|
23 |
-
*.pth filter=lfs diff=lfs merge=lfs -text
|
24 |
-
*.rar filter=lfs diff=lfs merge=lfs -text
|
25 |
-
*.safetensors filter=lfs diff=lfs merge=lfs -text
|
26 |
-
saved_model/**/* filter=lfs diff=lfs merge=lfs -text
|
27 |
-
*.tar.* filter=lfs diff=lfs merge=lfs -text
|
28 |
-
*.tar filter=lfs diff=lfs merge=lfs -text
|
29 |
-
*.tflite filter=lfs diff=lfs merge=lfs -text
|
30 |
-
*.tgz filter=lfs diff=lfs merge=lfs -text
|
31 |
-
*.wasm filter=lfs diff=lfs merge=lfs -text
|
32 |
-
*.xz filter=lfs diff=lfs merge=lfs -text
|
33 |
-
*.zip filter=lfs diff=lfs merge=lfs -text
|
34 |
-
*.zst filter=lfs diff=lfs merge=lfs -text
|
35 |
-
*tfevents* filter=lfs diff=lfs merge=lfs -text
|
|
|
1 |
+
*.bin.* filter=lfs diff=lfs merge=lfs -text
|
2 |
+
*.lfs.* filter=lfs diff=lfs merge=lfs -text
|
3 |
+
*.bin filter=lfs diff=lfs merge=lfs -text
|
4 |
+
*.h5 filter=lfs diff=lfs merge=lfs -text
|
5 |
+
*.tflite filter=lfs diff=lfs merge=lfs -text
|
6 |
+
*.tar.gz filter=lfs diff=lfs merge=lfs -text
|
7 |
+
*.ot filter=lfs diff=lfs merge=lfs -text
|
8 |
+
*.onnx filter=lfs diff=lfs merge=lfs -text
|
9 |
+
*.msgpack filter=lfs diff=lfs merge=lfs -text
|
10 |
+
model.safetensors filter=lfs diff=lfs merge=lfs -text
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
README.md
CHANGED
@@ -1,3 +1,167 @@
|
|
1 |
---
|
|
|
|
|
|
|
|
|
2 |
license: mit
|
3 |
---
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
---
|
2 |
+
language: en
|
3 |
+
tags:
|
4 |
+
- exbert
|
5 |
+
|
6 |
license: mit
|
7 |
---
|
8 |
+
|
9 |
+
|
10 |
+
# GPT-2
|
11 |
+
|
12 |
+
Test the whole generation capabilities here: https://transformer.huggingface.co/doc/gpt2-large
|
13 |
+
|
14 |
+
Pretrained model on English language using a causal language modeling (CLM) objective. It was introduced in
|
15 |
+
[this paper](https://d4mucfpksywv.cloudfront.net/better-language-models/language_models_are_unsupervised_multitask_learners.pdf)
|
16 |
+
and first released at [this page](https://openai.com/blog/better-language-models/).
|
17 |
+
|
18 |
+
Disclaimer: The team releasing GPT-2 also wrote a
|
19 |
+
[model card](https://github.com/openai/gpt-2/blob/master/model_card.md) for their model. Content from this model card
|
20 |
+
has been written by the Hugging Face team to complete the information they provided and give specific examples of bias.
|
21 |
+
|
22 |
+
## Model description
|
23 |
+
|
24 |
+
GPT-2 is a transformers model pretrained on a very large corpus of English data in a self-supervised fashion. This
|
25 |
+
means it was pretrained on the raw texts only, with no humans labelling them in any way (which is why it can use lots
|
26 |
+
of publicly available data) with an automatic process to generate inputs and labels from those texts. More precisely,
|
27 |
+
it was trained to guess the next word in sentences.
|
28 |
+
|
29 |
+
More precisely, inputs are sequences of continuous text of a certain length and the targets are the same sequence,
|
30 |
+
shifted one token (word or piece of word) to the right. The model uses internally a mask-mechanism to make sure the
|
31 |
+
predictions for the token `i` only uses the inputs from `1` to `i` but not the future tokens.
|
32 |
+
|
33 |
+
This way, the model learns an inner representation of the English language that can then be used to extract features
|
34 |
+
useful for downstream tasks. The model is best at what it was pretrained for however, which is generating texts from a
|
35 |
+
prompt.
|
36 |
+
|
37 |
+
This is the **smallest** version of GPT-2, with 124M parameters.
|
38 |
+
|
39 |
+
**Related Models:** [GPT-Large](https://huggingface.co/gpt2-large), [GPT-Medium](https://huggingface.co/gpt2-medium) and [GPT-XL](https://huggingface.co/gpt2-xl)
|
40 |
+
|
41 |
+
## Intended uses & limitations
|
42 |
+
|
43 |
+
You can use the raw model for text generation or fine-tune it to a downstream task. See the
|
44 |
+
[model hub](https://huggingface.co/models?filter=gpt2) to look for fine-tuned versions on a task that interests you.
|
45 |
+
|
46 |
+
### How to use
|
47 |
+
|
48 |
+
You can use this model directly with a pipeline for text generation. Since the generation relies on some randomness, we
|
49 |
+
set a seed for reproducibility:
|
50 |
+
|
51 |
+
```python
|
52 |
+
>>> from transformers import pipeline, set_seed
|
53 |
+
>>> generator = pipeline('text-generation', model='gpt2')
|
54 |
+
>>> set_seed(42)
|
55 |
+
>>> generator("Hello, I'm a language model,", max_length=30, num_return_sequences=5)
|
56 |
+
|
57 |
+
[{'generated_text': "Hello, I'm a language model, a language for thinking, a language for expressing thoughts."},
|
58 |
+
{'generated_text': "Hello, I'm a language model, a compiler, a compiler library, I just want to know how I build this kind of stuff. I don"},
|
59 |
+
{'generated_text': "Hello, I'm a language model, and also have more than a few of your own, but I understand that they're going to need some help"},
|
60 |
+
{'generated_text': "Hello, I'm a language model, a system model. I want to know my language so that it might be more interesting, more user-friendly"},
|
61 |
+
{'generated_text': 'Hello, I\'m a language model, not a language model"\n\nThe concept of "no-tricks" comes in handy later with new'}]
|
62 |
+
```
|
63 |
+
|
64 |
+
Here is how to use this model to get the features of a given text in PyTorch:
|
65 |
+
|
66 |
+
```python
|
67 |
+
from transformers import GPT2Tokenizer, GPT2Model
|
68 |
+
tokenizer = GPT2Tokenizer.from_pretrained('gpt2')
|
69 |
+
model = GPT2Model.from_pretrained('gpt2')
|
70 |
+
text = "Replace me by any text you'd like."
|
71 |
+
encoded_input = tokenizer(text, return_tensors='pt')
|
72 |
+
output = model(**encoded_input)
|
73 |
+
```
|
74 |
+
|
75 |
+
and in TensorFlow:
|
76 |
+
|
77 |
+
```python
|
78 |
+
from transformers import GPT2Tokenizer, TFGPT2Model
|
79 |
+
tokenizer = GPT2Tokenizer.from_pretrained('gpt2')
|
80 |
+
model = TFGPT2Model.from_pretrained('gpt2')
|
81 |
+
text = "Replace me by any text you'd like."
|
82 |
+
encoded_input = tokenizer(text, return_tensors='tf')
|
83 |
+
output = model(encoded_input)
|
84 |
+
```
|
85 |
+
|
86 |
+
### Limitations and bias
|
87 |
+
|
88 |
+
The training data used for this model has not been released as a dataset one can browse. We know it contains a lot of
|
89 |
+
unfiltered content from the internet, which is far from neutral. As the openAI team themselves point out in their
|
90 |
+
[model card](https://github.com/openai/gpt-2/blob/master/model_card.md#out-of-scope-use-cases):
|
91 |
+
|
92 |
+
> Because large-scale language models like GPT-2 do not distinguish fact from fiction, we don’t support use-cases
|
93 |
+
> that require the generated text to be true.
|
94 |
+
>
|
95 |
+
> Additionally, language models like GPT-2 reflect the biases inherent to the systems they were trained on, so we do
|
96 |
+
> not recommend that they be deployed into systems that interact with humans > unless the deployers first carry out a
|
97 |
+
> study of biases relevant to the intended use-case. We found no statistically significant difference in gender, race,
|
98 |
+
> and religious bias probes between 774M and 1.5B, implying all versions of GPT-2 should be approached with similar
|
99 |
+
> levels of caution around use cases that are sensitive to biases around human attributes.
|
100 |
+
|
101 |
+
Here's an example of how the model can have biased predictions:
|
102 |
+
|
103 |
+
```python
|
104 |
+
>>> from transformers import pipeline, set_seed
|
105 |
+
>>> generator = pipeline('text-generation', model='gpt2')
|
106 |
+
>>> set_seed(42)
|
107 |
+
>>> generator("The White man worked as a", max_length=10, num_return_sequences=5)
|
108 |
+
|
109 |
+
[{'generated_text': 'The White man worked as a mannequin for'},
|
110 |
+
{'generated_text': 'The White man worked as a maniser of the'},
|
111 |
+
{'generated_text': 'The White man worked as a bus conductor by day'},
|
112 |
+
{'generated_text': 'The White man worked as a plumber at the'},
|
113 |
+
{'generated_text': 'The White man worked as a journalist. He had'}]
|
114 |
+
|
115 |
+
>>> set_seed(42)
|
116 |
+
>>> generator("The Black man worked as a", max_length=10, num_return_sequences=5)
|
117 |
+
|
118 |
+
[{'generated_text': 'The Black man worked as a man at a restaurant'},
|
119 |
+
{'generated_text': 'The Black man worked as a car salesman in a'},
|
120 |
+
{'generated_text': 'The Black man worked as a police sergeant at the'},
|
121 |
+
{'generated_text': 'The Black man worked as a man-eating monster'},
|
122 |
+
{'generated_text': 'The Black man worked as a slave, and was'}]
|
123 |
+
```
|
124 |
+
|
125 |
+
This bias will also affect all fine-tuned versions of this model.
|
126 |
+
|
127 |
+
## Training data
|
128 |
+
|
129 |
+
The OpenAI team wanted to train this model on a corpus as large as possible. To build it, they scraped all the web
|
130 |
+
pages from outbound links on Reddit which received at least 3 karma. Note that all Wikipedia pages were removed from
|
131 |
+
this dataset, so the model was not trained on any part of Wikipedia. The resulting dataset (called WebText) weights
|
132 |
+
40GB of texts but has not been publicly released. You can find a list of the top 1,000 domains present in WebText
|
133 |
+
[here](https://github.com/openai/gpt-2/blob/master/domains.txt).
|
134 |
+
|
135 |
+
## Training procedure
|
136 |
+
|
137 |
+
### Preprocessing
|
138 |
+
|
139 |
+
The texts are tokenized using a byte-level version of Byte Pair Encoding (BPE) (for unicode characters) and a
|
140 |
+
vocabulary size of 50,257. The inputs are sequences of 1024 consecutive tokens.
|
141 |
+
|
142 |
+
The larger model was trained on 256 cloud TPU v3 cores. The training duration was not disclosed, nor were the exact
|
143 |
+
details of training.
|
144 |
+
|
145 |
+
## Evaluation results
|
146 |
+
|
147 |
+
The model achieves the following results without any fine-tuning (zero-shot):
|
148 |
+
|
149 |
+
| Dataset | LAMBADA | LAMBADA | CBT-CN | CBT-NE | WikiText2 | PTB | enwiki8 | text8 | WikiText103 | 1BW |
|
150 |
+
|:--------:|:-------:|:-------:|:------:|:------:|:---------:|:------:|:-------:|:------:|:-----------:|:-----:|
|
151 |
+
| (metric) | (PPL) | (ACC) | (ACC) | (ACC) | (PPL) | (PPL) | (BPB) | (BPC) | (PPL) | (PPL) |
|
152 |
+
| | 35.13 | 45.99 | 87.65 | 83.4 | 29.41 | 65.85 | 1.16 | 1,17 | 37.50 | 75.20 |
|
153 |
+
|
154 |
+
|
155 |
+
### BibTeX entry and citation info
|
156 |
+
|
157 |
+
```bibtex
|
158 |
+
@article{radford2019language,
|
159 |
+
title={Language Models are Unsupervised Multitask Learners},
|
160 |
+
author={Radford, Alec and Wu, Jeff and Child, Rewon and Luan, David and Amodei, Dario and Sutskever, Ilya},
|
161 |
+
year={2019}
|
162 |
+
}
|
163 |
+
```
|
164 |
+
|
165 |
+
<a href="https://huggingface.co/exbert/?model=gpt2">
|
166 |
+
<img width="300px" src="https://cdn-media.huggingface.co/exbert/button.png">
|
167 |
+
</a>
|
config.json
ADDED
@@ -0,0 +1,31 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"activation_function": "gelu_new",
|
3 |
+
"architectures": [
|
4 |
+
"GPT2LMHeadModel"
|
5 |
+
],
|
6 |
+
"attn_pdrop": 0.1,
|
7 |
+
"bos_token_id": 50256,
|
8 |
+
"embd_pdrop": 0.1,
|
9 |
+
"eos_token_id": 50256,
|
10 |
+
"initializer_range": 0.02,
|
11 |
+
"layer_norm_epsilon": 1e-05,
|
12 |
+
"model_type": "gpt2",
|
13 |
+
"n_ctx": 1024,
|
14 |
+
"n_embd": 768,
|
15 |
+
"n_head": 12,
|
16 |
+
"n_layer": 12,
|
17 |
+
"n_positions": 1024,
|
18 |
+
"resid_pdrop": 0.1,
|
19 |
+
"summary_activation": null,
|
20 |
+
"summary_first_dropout": 0.1,
|
21 |
+
"summary_proj_to_labels": true,
|
22 |
+
"summary_type": "cls_index",
|
23 |
+
"summary_use_proj": true,
|
24 |
+
"task_specific_params": {
|
25 |
+
"text-generation": {
|
26 |
+
"do_sample": true,
|
27 |
+
"max_length": 50
|
28 |
+
}
|
29 |
+
},
|
30 |
+
"vocab_size": 50257
|
31 |
+
}
|
generation_config.json
ADDED
@@ -0,0 +1,6 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"bos_token_id": 50256,
|
3 |
+
"eos_token_id": 50256,
|
4 |
+
"transformers_version": "4.26.0.dev0",
|
5 |
+
"_from_model_config": true
|
6 |
+
}
|
merges.txt
ADDED
The diff for this file is too large to render.
See raw diff
|
|
onnx/config.json
ADDED
@@ -0,0 +1,38 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"_name_or_path": "gpt2",
|
3 |
+
"activation_function": "gelu_new",
|
4 |
+
"architectures": [
|
5 |
+
"GPT2LMHeadModel"
|
6 |
+
],
|
7 |
+
"attn_pdrop": 0.1,
|
8 |
+
"bos_token_id": 50256,
|
9 |
+
"embd_pdrop": 0.1,
|
10 |
+
"eos_token_id": 50256,
|
11 |
+
"initializer_range": 0.02,
|
12 |
+
"layer_norm_epsilon": 1e-05,
|
13 |
+
"model_type": "gpt2",
|
14 |
+
"n_ctx": 1024,
|
15 |
+
"n_embd": 768,
|
16 |
+
"n_head": 12,
|
17 |
+
"n_inner": null,
|
18 |
+
"n_layer": 12,
|
19 |
+
"n_positions": 1024,
|
20 |
+
"reorder_and_upcast_attn": false,
|
21 |
+
"resid_pdrop": 0.1,
|
22 |
+
"scale_attn_by_inverse_layer_idx": false,
|
23 |
+
"scale_attn_weights": true,
|
24 |
+
"summary_activation": null,
|
25 |
+
"summary_first_dropout": 0.1,
|
26 |
+
"summary_proj_to_labels": true,
|
27 |
+
"summary_type": "cls_index",
|
28 |
+
"summary_use_proj": true,
|
29 |
+
"task_specific_params": {
|
30 |
+
"text-generation": {
|
31 |
+
"do_sample": true,
|
32 |
+
"max_length": 50
|
33 |
+
}
|
34 |
+
},
|
35 |
+
"transformers_version": "4.30.2",
|
36 |
+
"use_cache": true,
|
37 |
+
"vocab_size": 50257
|
38 |
+
}
|
onnx/generation_config.json
ADDED
@@ -0,0 +1,6 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"_from_model_config": true,
|
3 |
+
"bos_token_id": 50256,
|
4 |
+
"eos_token_id": 50256,
|
5 |
+
"transformers_version": "4.30.2"
|
6 |
+
}
|
onnx/merges.txt
ADDED
The diff for this file is too large to render.
See raw diff
|
|
onnx/special_tokens_map.json
ADDED
@@ -0,0 +1,5 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"bos_token": "<|endoftext|>",
|
3 |
+
"eos_token": "<|endoftext|>",
|
4 |
+
"unk_token": "<|endoftext|>"
|
5 |
+
}
|
onnx/tokenizer.json
ADDED
The diff for this file is too large to render.
See raw diff
|
|
onnx/tokenizer_config.json
ADDED
@@ -0,0 +1,9 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"add_prefix_space": false,
|
3 |
+
"bos_token": "<|endoftext|>",
|
4 |
+
"clean_up_tokenization_spaces": true,
|
5 |
+
"eos_token": "<|endoftext|>",
|
6 |
+
"model_max_length": 1024,
|
7 |
+
"tokenizer_class": "GPT2Tokenizer",
|
8 |
+
"unk_token": "<|endoftext|>"
|
9 |
+
}
|
onnx/vocab.json
ADDED
The diff for this file is too large to render.
See raw diff
|
|
tokenizer.json
ADDED
The diff for this file is too large to render.
See raw diff
|
|
tokenizer_config.json
ADDED
@@ -0,0 +1 @@
|
|
|
|
|
1 |
+
{"model_max_length": 1024}
|
vocab.json
ADDED
The diff for this file is too large to render.
See raw diff
|
|