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1
+ {
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+ "cells": [
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+ {
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+ "cell_type": "markdown",
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+ "metadata": {},
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+ "source": [
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+ "# Processing data"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 4,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "import torch\n",
17
+ "from torch.utils.data import DataLoader\n",
18
+ "from transformers import get_scheduler, TrainingArguments, Trainer, DataCollatorWithPadding, AdamW, AutoTokenizer, AutoModelForSequenceClassification\n",
19
+ "from datasets import load_dataset\n",
20
+ "import gc\n",
21
+ "import numpy as np\n",
22
+ "from datasets import load_metric\n",
23
+ "import random\n",
24
+ "import os\n",
25
+ "from tqdm.auto import tqdm"
26
+ ]
27
+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 5,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "os.environ['CUDA_LAUNCH_BLOCKING'] = '1'"
35
+ ]
36
+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 6,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
43
+ "# reset GPU memory\n",
44
+ "gc.collect()\n",
45
+ "torch.cuda.empty_cache()"
46
+ ]
47
+ },
48
+ {
49
+ "cell_type": "code",
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+ "execution_count": 3,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "ename": "NameError",
55
+ "evalue": "name 'AutoTokenizer' is not defined",
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+ "output_type": "error",
57
+ "traceback": [
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+ "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
59
+ "\u001b[1;31mNameError\u001b[0m Traceback (most recent call last)",
60
+ "\u001b[1;32m<ipython-input-3-f5793421e6ee>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m 1\u001b[0m \u001b[0mcheckpoint\u001b[0m \u001b[1;33m=\u001b[0m \u001b[1;34m\"bert-base-uncased\"\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 2\u001b[1;33m \u001b[0mtokenizer\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mAutoTokenizer\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mfrom_pretrained\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mcheckpoint\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
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+ "\u001b[1;31mNameError\u001b[0m: name 'AutoTokenizer' is not defined"
62
+ ]
63
+ }
64
+ ],
65
+ "source": [
66
+ "checkpoint = \"bert-base-uncased\"\n",
67
+ "tokenizer = AutoTokenizer.from_pretrained(checkpoint)"
68
+ ]
69
+ },
70
+ {
71
+ "cell_type": "code",
72
+ "execution_count": 5,
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+ "metadata": {},
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+ "outputs": [
75
+ {
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+ "name": "stderr",
77
+ "output_type": "stream",
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+ "text": [
79
+ "Some weights of the model checkpoint at bert-base-uncased were not used when initializing BertForSequenceClassification: ['cls.seq_relationship.weight', 'cls.predictions.transform.dense.bias', 'cls.predictions.transform.LayerNorm.bias', 'cls.seq_relationship.bias', 'cls.predictions.bias', 'cls.predictions.transform.LayerNorm.weight', 'cls.predictions.decoder.weight', 'cls.predictions.transform.dense.weight']\n",
80
+ "- This IS expected if you are initializing BertForSequenceClassification from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).\n",
81
+ "- This IS NOT expected if you are initializing BertForSequenceClassification from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).\n",
82
+ "Some weights of BertForSequenceClassification were not initialized from the model checkpoint at bert-base-uncased and are newly initialized: ['classifier.weight', 'classifier.bias']\n",
83
+ "You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.\n"
84
+ ]
85
+ }
86
+ ],
87
+ "source": [
88
+ "checkpoint = \"bert-base-uncased\"\n",
89
+ "tokenizer = AutoTokenizer.from_pretrained(checkpoint)\n",
90
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint)"
91
+ ]
92
+ },
93
+ {
94
+ "cell_type": "code",
95
+ "execution_count": 3,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "sequences = [\n",
100
+ " \"I've been waiting for a HuggingFace course my whole life.\",\n",
101
+ " \"This course is amazing!\",\n",
102
+ "]\n",
103
+ "batch = tokenizer(sequences, padding=True, truncation=True, return_tensors=\"pt\")\n",
104
+ "batch[\"labels\"] = torch.tensor([1, 1])\n",
105
+ "optimizer = AdamW(model.parameters())\n",
106
+ "loss = model(**batch).loss\n",
107
+ "loss.backward()\n",
108
+ "optimizer.step()"
109
+ ]
110
+ },
111
+ {
112
+ "cell_type": "code",
113
+ "execution_count": 4,
114
+ "metadata": {},
115
+ "outputs": [
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+ {
117
+ "name": "stderr",
118
+ "output_type": "stream",
119
+ "text": [
120
+ "Reusing dataset glue (C:\\Users\\1seba\\.cache\\huggingface\\datasets\\glue\\mrpc\\1.0.0\\dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad)\n"
121
+ ]
122
+ }
123
+ ],
124
+ "source": [
125
+ "raw_datasets = load_dataset(\"glue\",\"mrpc\")\n",
126
+ "raw_train_dataset = raw_datasets['train']\n",
127
+ "# print(raw_train_dataset.features)\n",
128
+ "tokenizer = AutoTokenizer.from_pretrained(checkpoint)\n",
129
+ "# # WHY CANT WE PASS THE DIFFERENT SENTENCES TOGETHER\n",
130
+ "# tokenized_sentences_1 = tokenizer(raw_train_dataset[15]['sentence1'])\n",
131
+ "# tokenized_sentences_2 = tokenizer(raw_train_dataset[15]['sentence2'])\n",
132
+ "# print(tokenizer.decode(tokenized_sentences_1.input_ids), tokenizer.decode(tokenized_sentences_2.input_ids))\n",
133
+ "# inputs = tokenizer(raw_train_dataset[15]['sentence1'], raw_train_dataset[15]['sentence2'])\n",
134
+ "# print(tokenizer.decode(inputs.input_ids))\n",
135
+ "inputs = tokenizer(raw_train_dataset['sentence1'], raw_train_dataset['sentence2'], padding=True, truncation=True)\n",
136
+ "\n",
137
+ "# tokenized_datasets = raw_datasets.map(tokenize_function, batched=False)\n",
138
+ "# print(tokenized_datasets['train'].features)"
139
+ ]
140
+ },
141
+ {
142
+ "cell_type": "code",
143
+ "execution_count": 5,
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+ "metadata": {},
145
+ "outputs": [
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+ {
147
+ "data": {
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+ "text/plain": [
149
+ "['input_ids', 'token_type_ids', 'attention_mask']"
150
+ ]
151
+ },
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+ "execution_count": 5,
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+ "metadata": {},
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+ "output_type": "execute_result"
155
+ }
156
+ ],
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+ "source": [
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+ "list(inputs.keys())"
159
+ ]
160
+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": 6,
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+ "metadata": {},
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+ "outputs": [
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+ {
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+ "name": "stderr",
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+ "output_type": "stream",
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+ "text": [
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+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 4/4 [00:01<00:00, 3.69ba/s]\n",
171
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 1/1 [00:00<00:00, 16.42ba/s]\n",
172
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 2/2 [00:00<00:00, 6.22ba/s]\n"
173
+ ]
174
+ }
175
+ ],
176
+ "source": [
177
+ "def tokenize_function(example):\n",
178
+ " tokenized = tokenizer(example['sentence1'], example['sentence2'], truncation=True)\n",
179
+ "# tokenized['input_ids'] = ['CHANGED!' for item in tokenized['input_ids']]\n",
180
+ " return tokenized\n",
181
+ "tokenized_datasets = raw_datasets.map(tokenize_function, batched=True)"
182
+ ]
183
+ },
184
+ {
185
+ "cell_type": "code",
186
+ "execution_count": 9,
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+ "metadata": {},
188
+ "outputs": [],
189
+ "source": [
190
+ "data_collator = DataCollatorWithPadding(tokenizer=tokenizer)"
191
+ ]
192
+ },
193
+ {
194
+ "cell_type": "code",
195
+ "execution_count": 10,
196
+ "metadata": {},
197
+ "outputs": [
198
+ {
199
+ "data": {
200
+ "text/plain": [
201
+ "[50, 59, 47, 67, 59, 50, 62, 32]"
202
+ ]
203
+ },
204
+ "execution_count": 10,
205
+ "metadata": {},
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+ "output_type": "execute_result"
207
+ }
208
+ ],
209
+ "source": [
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+ "samples = tokenized_datasets[\"train\"][:8]\n",
211
+ "samples = {k: v for k, v in samples.items() if k not in [\"idx\", \"sentence1\", \"sentence2\"]}\n",
212
+ "[len(x) for x in samples[\"input_ids\"]]"
213
+ ]
214
+ },
215
+ {
216
+ "cell_type": "code",
217
+ "execution_count": 37,
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+ "metadata": {
219
+ "scrolled": true
220
+ },
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+ "outputs": [
222
+ {
223
+ "data": {
224
+ "text/plain": [
225
+ "{'attention_mask': torch.Size([8, 67]),\n",
226
+ " 'input_ids': torch.Size([8, 67]),\n",
227
+ " 'token_type_ids': torch.Size([8, 67]),\n",
228
+ " 'labels': torch.Size([8])}"
229
+ ]
230
+ },
231
+ "execution_count": 37,
232
+ "metadata": {},
233
+ "output_type": "execute_result"
234
+ }
235
+ ],
236
+ "source": [
237
+ "batch = data_collator(samples)\n",
238
+ "{k: v.shape for k, v in batch.items()}"
239
+ ]
240
+ },
241
+ {
242
+ "cell_type": "markdown",
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+ "metadata": {},
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+ "source": [
245
+ "## Challenge 1"
246
+ ]
247
+ },
248
+ {
249
+ "cell_type": "code",
250
+ "execution_count": 15,
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+ "metadata": {},
252
+ "outputs": [],
253
+ "source": [
254
+ "from torch.utils.data import DataLoader"
255
+ ]
256
+ },
257
+ {
258
+ "cell_type": "code",
259
+ "execution_count": 12,
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+ "metadata": {},
261
+ "outputs": [],
262
+ "source": [
263
+ "samples = tokenized_datasets['test'][:8]\n",
264
+ "samples = {k: samples[k] for k in list(samples.keys()) if k not in [\"idx\", \"sentence1\", \"sentence2\"]}"
265
+ ]
266
+ },
267
+ {
268
+ "cell_type": "code",
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+ "execution_count": 13,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "padded_samples = data_collator(samples)"
274
+ ]
275
+ },
276
+ {
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+ "cell_type": "code",
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+ "execution_count": 21,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "\n",
283
+ "train_dataloader = DataLoader(tokenized_datasets['test'], batch_size=16, shuffle=True, collate_fn=data_collator)\n",
284
+ "for batch in train_dataloader:\n",
285
+ " print(batch['input_ids'].shape())"
286
+ ]
287
+ },
288
+ {
289
+ "cell_type": "markdown",
290
+ "metadata": {},
291
+ "source": [
292
+ "## Challenge 2"
293
+ ]
294
+ },
295
+ {
296
+ "cell_type": "code",
297
+ "execution_count": 5,
298
+ "metadata": {},
299
+ "outputs": [
300
+ {
301
+ "name": "stderr",
302
+ "output_type": "stream",
303
+ "text": [
304
+ "Reusing dataset glue (C:\\Users\\1seba\\.cache\\huggingface\\datasets\\glue\\sst2\\1.0.0\\dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad)\n"
305
+ ]
306
+ }
307
+ ],
308
+ "source": [
309
+ "raw_dataset_sst2 = load_dataset(\"glue\",\"sst2\")"
310
+ ]
311
+ },
312
+ {
313
+ "cell_type": "code",
314
+ "execution_count": 6,
315
+ "metadata": {},
316
+ "outputs": [
317
+ {
318
+ "name": "stderr",
319
+ "output_type": "stream",
320
+ "text": [
321
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 68/68 [00:03<00:00, 18.46ba/s]\n",
322
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 1/1 [00:00<00:00, 16.67ba/s]\n",
323
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 2/2 [00:00<00:00, 16.67ba/s]\n"
324
+ ]
325
+ }
326
+ ],
327
+ "source": [
328
+ "dataset_to_tokenize = raw_dataset_sst2\n",
329
+ "def tokenize_dynamic(example):\n",
330
+ " dynamic_sentence_list = [x for x in list(example.keys()) if x not in ['label', 'idx']]\n",
331
+ " if len(dynamic_sentence_list) == 1:\n",
332
+ " return tokenizer(example[dynamic_sentence_list[0]], truncation=True)\n",
333
+ " else:\n",
334
+ " return tokenizer(example[dynamic_sentence_list[0]], example[dynamic_sentence_list[1]], truncation=True)\n",
335
+ "tokenized_datasets = dataset_to_tokenize.map(tokenize_dynamic, batched=True)"
336
+ ]
337
+ },
338
+ {
339
+ "cell_type": "code",
340
+ "execution_count": 7,
341
+ "metadata": {},
342
+ "outputs": [],
343
+ "source": [
344
+ "samples = tokenized_datasets['train'][:8]\n",
345
+ "samples = {k: samples[k] for k in list(samples.keys()) if k not in [\"idx\", \"sentence\", \"sentence1\", \"sentence2\"]}"
346
+ ]
347
+ },
348
+ {
349
+ "cell_type": "code",
350
+ "execution_count": 8,
351
+ "metadata": {},
352
+ "outputs": [],
353
+ "source": [
354
+ "data_collator = DataCollatorWithPadding(tokenizer=tokenizer)"
355
+ ]
356
+ },
357
+ {
358
+ "cell_type": "code",
359
+ "execution_count": 74,
360
+ "metadata": {},
361
+ "outputs": [],
362
+ "source": [
363
+ "padded_data = data_collator(samples)"
364
+ ]
365
+ },
366
+ {
367
+ "cell_type": "markdown",
368
+ "metadata": {},
369
+ "source": [
370
+ "# Fine-tuning a model with Trainer API"
371
+ ]
372
+ },
373
+ {
374
+ "cell_type": "code",
375
+ "execution_count": 33,
376
+ "metadata": {},
377
+ "outputs": [
378
+ {
379
+ "name": "stderr",
380
+ "output_type": "stream",
381
+ "text": [
382
+ "Reusing dataset glue (C:\\Users\\1seba\\.cache\\huggingface\\datasets\\glue\\mrpc\\1.0.0\\dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad)\n",
383
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 4/4 [00:00<00:00, 5.85ba/s]\n",
384
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 1/1 [00:00<00:00, 14.49ba/s]\n",
385
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 2/2 [00:00<00:00, 6.37ba/s]\n"
386
+ ]
387
+ }
388
+ ],
389
+ "source": [
390
+ "# set up so far\n",
391
+ "from datasets import load_dataset\n",
392
+ "from transformers import AutoTokenizer, DataCollatorWithPadding\n",
393
+ "\n",
394
+ "raw_datasets = load_dataset(\"glue\", \"mrpc\")\n",
395
+ "checkpoint = \"bert-base-uncased\"\n",
396
+ "tokenizer = AutoTokenizer.from_pretrained(checkpoint)\n",
397
+ "\n",
398
+ "def tokenize_function(example):\n",
399
+ " return tokenizer(example[\"sentence1\"], example[\"sentence2\"], truncation=True)\n",
400
+ "\n",
401
+ "tokenized_datasets = raw_datasets.map(tokenize_function, batched=True)\n",
402
+ "data_collator = DataCollatorWithPadding(tokenizer=tokenizer)"
403
+ ]
404
+ },
405
+ {
406
+ "cell_type": "code",
407
+ "execution_count": 9,
408
+ "metadata": {},
409
+ "outputs": [],
410
+ "source": [
411
+ "from transformers import TrainingArguments\n",
412
+ "from transformers import AutoModelForSequenceClassification"
413
+ ]
414
+ },
415
+ {
416
+ "cell_type": "code",
417
+ "execution_count": 34,
418
+ "metadata": {},
419
+ "outputs": [],
420
+ "source": [
421
+ "training_args = TrainingArguments(\"test-trainer\")\n",
422
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint, num_labels=2)"
423
+ ]
424
+ },
425
+ {
426
+ "cell_type": "code",
427
+ "execution_count": 9,
428
+ "metadata": {},
429
+ "outputs": [],
430
+ "source": []
431
+ },
432
+ {
433
+ "cell_type": "code",
434
+ "execution_count": 37,
435
+ "metadata": {},
436
+ "outputs": [
437
+ {
438
+ "name": "stderr",
439
+ "output_type": "stream",
440
+ "text": [
441
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 4/4 [00:00<00:00, 4.14ba/s]\n",
442
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 1/1 [00:00<00:00, 9.71ba/s]\n"
443
+ ]
444
+ }
445
+ ],
446
+ "source": [
447
+ "train_dataset = tokenized_datasets[\"train\"].filter(percentageOfItems)\n",
448
+ "validation_dataset = tokenized_datasets[\"validation\"].filter(percentageOfItems)"
449
+ ]
450
+ },
451
+ {
452
+ "cell_type": "code",
453
+ "execution_count": 42,
454
+ "metadata": {},
455
+ "outputs": [],
456
+ "source": [
457
+ "trainer = Trainer(\n",
458
+ " model,\n",
459
+ " training_args,\n",
460
+ " train_dataset=train_dataset,\n",
461
+ " eval_dataset=validation_dataset,\n",
462
+ " data_collator=data_collator,\n",
463
+ " tokenizer=tokenizer,\n",
464
+ ")"
465
+ ]
466
+ },
467
+ {
468
+ "cell_type": "code",
469
+ "execution_count": null,
470
+ "metadata": {},
471
+ "outputs": [
472
+ {
473
+ "name": "stderr",
474
+ "output_type": "stream",
475
+ "text": [
476
+ " 0%| | 0/132 [01:31<?, ?it/s]\n",
477
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 132/132 [00:44<00:00, 2.97it/s]"
478
+ ]
479
+ },
480
+ {
481
+ "name": "stdout",
482
+ "output_type": "stream",
483
+ "text": [
484
+ "{'train_runtime': 44.4012, 'train_samples_per_second': 2.973, 'epoch': 3.0}\n"
485
+ ]
486
+ },
487
+ {
488
+ "name": "stderr",
489
+ "output_type": "stream",
490
+ "text": [
491
+ "\n"
492
+ ]
493
+ },
494
+ {
495
+ "data": {
496
+ "text/plain": [
497
+ "TrainOutput(global_step=132, training_loss=0.4154145789868904, metrics={'train_runtime': 44.4012, 'train_samples_per_second': 2.973, 'epoch': 3.0})"
498
+ ]
499
+ },
500
+ "metadata": {},
501
+ "output_type": "display_data"
502
+ }
503
+ ],
504
+ "source": [
505
+ "trainer.train()"
506
+ ]
507
+ },
508
+ {
509
+ "cell_type": "code",
510
+ "execution_count": 48,
511
+ "metadata": {},
512
+ "outputs": [
513
+ {
514
+ "name": "stderr",
515
+ "output_type": "stream",
516
+ "text": [
517
+ " 80%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ | 4/5 [00:00<00:00, 9.37it/s]"
518
+ ]
519
+ },
520
+ {
521
+ "name": "stdout",
522
+ "output_type": "stream",
523
+ "text": [
524
+ "(37, 2) (37,)\n"
525
+ ]
526
+ }
527
+ ],
528
+ "source": [
529
+ "predictions = trainer.predict(validation_dataset)\n",
530
+ "print(predictions.predictions.shape, predictions.label_ids.shape)"
531
+ ]
532
+ },
533
+ {
534
+ "cell_type": "code",
535
+ "execution_count": 10,
536
+ "metadata": {},
537
+ "outputs": [],
538
+ "source": [
539
+ "import numpy as np\n",
540
+ "from datasets import load_metric"
541
+ ]
542
+ },
543
+ {
544
+ "cell_type": "code",
545
+ "execution_count": 49,
546
+ "metadata": {},
547
+ "outputs": [],
548
+ "source": [
549
+ "preds = np.argmax(predictions.predictions, axis=-1)"
550
+ ]
551
+ },
552
+ {
553
+ "cell_type": "code",
554
+ "execution_count": 51,
555
+ "metadata": {},
556
+ "outputs": [
557
+ {
558
+ "data": {
559
+ "text/plain": [
560
+ "{'accuracy': 0.8378378378378378, 'f1': 0.8928571428571429}"
561
+ ]
562
+ },
563
+ "execution_count": 51,
564
+ "metadata": {},
565
+ "output_type": "execute_result"
566
+ }
567
+ ],
568
+ "source": [
569
+ "metric = load_metric(\"glue\", \"mrpc\")\n",
570
+ "metric.compute(predictions=preds, references=predictions.label_ids)"
571
+ ]
572
+ },
573
+ {
574
+ "cell_type": "code",
575
+ "execution_count": 52,
576
+ "metadata": {},
577
+ "outputs": [],
578
+ "source": [
579
+ "def compute_metrics(eval_preds):\n",
580
+ " metric = load_metric(\"glue\", \"mrpc\")\n",
581
+ " logits, labels = eval_preds\n",
582
+ " predictions = np.argmax(logits, axis=-1)\n",
583
+ " return metric.compute(predictions=predictions, references=labels)"
584
+ ]
585
+ },
586
+ {
587
+ "cell_type": "code",
588
+ "execution_count": 62,
589
+ "metadata": {},
590
+ "outputs": [
591
+ {
592
+ "name": "stderr",
593
+ "output_type": "stream",
594
+ "text": [
595
+ "Some weights of the model checkpoint at bert-base-uncased were not used when initializing BertForSequenceClassification: ['cls.predictions.transform.dense.bias', 'cls.predictions.decoder.weight', 'cls.predictions.bias', 'cls.seq_relationship.bias', 'cls.seq_relationship.weight', 'cls.predictions.transform.LayerNorm.weight', 'cls.predictions.transform.LayerNorm.bias', 'cls.predictions.transform.dense.weight']\n",
596
+ "- This IS expected if you are initializing BertForSequenceClassification from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).\n",
597
+ "- This IS NOT expected if you are initializing BertForSequenceClassification from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).\n",
598
+ "Some weights of BertForSequenceClassification were not initialized from the model checkpoint at bert-base-uncased and are newly initialized: ['classifier.weight', 'classifier.bias']\n",
599
+ "You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.\n"
600
+ ]
601
+ }
602
+ ],
603
+ "source": [
604
+ "training_args = TrainingArguments(\"test-trainer\", evaluation_strategy=\"epoch\")\n",
605
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint, num_labels=2)\n",
606
+ "\n",
607
+ "trainer = Trainer(\n",
608
+ " model,\n",
609
+ " training_args,\n",
610
+ " train_dataset=train_dataset,\n",
611
+ " eval_dataset=validation_dataset,\n",
612
+ " data_collator=data_collator,\n",
613
+ " tokenizer=tokenizer,\n",
614
+ " compute_metrics=compute_metrics\n",
615
+ ")"
616
+ ]
617
+ },
618
+ {
619
+ "cell_type": "code",
620
+ "execution_count": 66,
621
+ "metadata": {},
622
+ "outputs": [
623
+ {
624
+ "name": "stderr",
625
+ "output_type": "stream",
626
+ "text": [
627
+ " 1%| | 1/132 [00:19<43:22, 19.87s/it]\n",
628
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 5/5 [00:00<00:00, 17.23it/s]\n"
629
+ ]
630
+ },
631
+ {
632
+ "name": "stdout",
633
+ "output_type": "stream",
634
+ "text": [
635
+ "{'eval_loss': 0.5742557048797607, 'eval_accuracy': 0.7027027027027027, 'eval_f1': 0.8070175438596492, 'eval_runtime': 0.9927, 'eval_samples_per_second': 37.273, 'epoch': 1.0}\n"
636
+ ]
637
+ },
638
+ {
639
+ "name": "stderr",
640
+ "output_type": "stream",
641
+ "text": [
642
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 5/5 [00:00<00:00, 17.03it/s]\n"
643
+ ]
644
+ },
645
+ {
646
+ "name": "stdout",
647
+ "output_type": "stream",
648
+ "text": [
649
+ "{'eval_loss': 0.4739842414855957, 'eval_accuracy': 0.7837837837837838, 'eval_f1': 0.8620689655172413, 'eval_runtime': 0.9255, 'eval_samples_per_second': 39.977, 'epoch': 2.0}\n"
650
+ ]
651
+ },
652
+ {
653
+ "name": "stderr",
654
+ "output_type": "stream",
655
+ "text": [
656
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 5/5 [00:00<00:00, 16.95it/s]\n",
657
+ " \n",
658
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 132/132 [00:46<00:00, 2.81it/s]"
659
+ ]
660
+ },
661
+ {
662
+ "name": "stdout",
663
+ "output_type": "stream",
664
+ "text": [
665
+ "{'eval_loss': 0.5759992599487305, 'eval_accuracy': 0.7567567567567568, 'eval_f1': 0.8474576271186441, 'eval_runtime': 0.8269, 'eval_samples_per_second': 44.745, 'epoch': 3.0}\n",
666
+ "{'train_runtime': 46.927, 'train_samples_per_second': 2.813, 'epoch': 3.0}\n"
667
+ ]
668
+ },
669
+ {
670
+ "name": "stderr",
671
+ "output_type": "stream",
672
+ "text": [
673
+ "\n"
674
+ ]
675
+ },
676
+ {
677
+ "data": {
678
+ "text/plain": [
679
+ "TrainOutput(global_step=132, training_loss=0.39838010614568536, metrics={'train_runtime': 46.927, 'train_samples_per_second': 2.813, 'epoch': 3.0})"
680
+ ]
681
+ },
682
+ "execution_count": 66,
683
+ "metadata": {},
684
+ "output_type": "execute_result"
685
+ }
686
+ ],
687
+ "source": [
688
+ "trainer.train()"
689
+ ]
690
+ },
691
+ {
692
+ "cell_type": "markdown",
693
+ "metadata": {},
694
+ "source": [
695
+ "## Challenge 3"
696
+ ]
697
+ },
698
+ {
699
+ "cell_type": "code",
700
+ "execution_count": 13,
701
+ "metadata": {},
702
+ "outputs": [
703
+ {
704
+ "name": "stderr",
705
+ "output_type": "stream",
706
+ "text": [
707
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 2/2 [00:00<00:00, 7.19ba/s]\n"
708
+ ]
709
+ }
710
+ ],
711
+ "source": [
712
+ "# FILTER BREAKS THE LABELS ON THIS DATASET\n",
713
+ "a = tokenized_datasets['test'].filter(lambda example, index: index % 2 == 0, with_indices=True)"
714
+ ]
715
+ },
716
+ {
717
+ "cell_type": "code",
718
+ "execution_count": 21,
719
+ "metadata": {},
720
+ "outputs": [
721
+ {
722
+ "name": "stderr",
723
+ "output_type": "stream",
724
+ "text": [
725
+ "Some weights of the model checkpoint at bert-base-uncased were not used when initializing BertForSequenceClassification: ['cls.predictions.decoder.weight', 'cls.predictions.transform.dense.bias', 'cls.seq_relationship.bias', 'cls.predictions.transform.LayerNorm.bias', 'cls.predictions.transform.dense.weight', 'cls.predictions.bias', 'cls.seq_relationship.weight', 'cls.predictions.transform.LayerNorm.weight']\n",
726
+ "- This IS expected if you are initializing BertForSequenceClassification from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).\n",
727
+ "- This IS NOT expected if you are initializing BertForSequenceClassification from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).\n",
728
+ "Some weights of BertForSequenceClassification were not initialized from the model checkpoint at bert-base-uncased and are newly initialized: ['classifier.weight', 'classifier.bias']\n",
729
+ "You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.\n"
730
+ ]
731
+ }
732
+ ],
733
+ "source": [
734
+ "# use \"tokenized_datasets\" from challenge 2\n",
735
+ "checkpoint = \"bert-base-uncased\"\n",
736
+ "tokenizer = AutoTokenizer.from_pretrained(checkpoint)\n",
737
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint, num_labels=2)\n",
738
+ "data_collator = DataCollatorWithPadding(tokenizer=tokenizer)\n",
739
+ "training_args = TrainingArguments('test-trainer', evaluation_strategy='epoch')\n",
740
+ "train_shard = tokenized_datasets['train'].shard(num_shards=150, index=0)\n",
741
+ "validation_shard = tokenized_datasets['validation'].shard(num_shards=4, index=0)\n",
742
+ "metric_sst2 = load_metric('glue', 'sst2')\n",
743
+ "\n",
744
+ "# def compute_metrics(eval_preds):\n",
745
+ "# metric = load_metric(\"glue\", \"mrpc\")\n",
746
+ "# logits, labels = eval_preds\n",
747
+ "# predictions = np.argmax(logits, axis=-1)\n",
748
+ "# return metric.compute(predictions=predictions, references=labels)\n",
749
+ "def compute_metrics (eval_preds):\n",
750
+ " metric_sst2 = load_metric('glue', 'sst2')\n",
751
+ " logits, labels = eval_preds\n",
752
+ " predictions = np.argmax(logits, axis=-1)\n",
753
+ " return metric_sst2.compute(predictions=predictions, references=labels)\n",
754
+ "\n",
755
+ "trainer = Trainer(\n",
756
+ " model,\n",
757
+ " training_args,\n",
758
+ " train_dataset=train_shard,\n",
759
+ " eval_dataset=validation_shard,\n",
760
+ " data_collator=data_collator,\n",
761
+ " tokenizer=tokenizer,\n",
762
+ " compute_metrics=compute_metrics\n",
763
+ ")"
764
+ ]
765
+ },
766
+ {
767
+ "cell_type": "code",
768
+ "execution_count": 22,
769
+ "metadata": {},
770
+ "outputs": [
771
+ {
772
+ "name": "stderr",
773
+ "output_type": "stream",
774
+ "text": [
775
+ "\n",
776
+ " 33%|β–ˆβ–ˆβ–ˆβ–Ž | 57/171 [00:35<00:58, 1.94it/s]"
777
+ ]
778
+ },
779
+ {
780
+ "name": "stdout",
781
+ "output_type": "stream",
782
+ "text": [
783
+ "{'eval_loss': 0.38222888112068176, 'eval_accuracy': 0.8302752293577982, 'eval_runtime': 3.3093, 'eval_samples_per_second': 65.875, 'epoch': 1.0}\n"
784
+ ]
785
+ },
786
+ {
787
+ "name": "stderr",
788
+ "output_type": "stream",
789
+ "text": [
790
+ "\n",
791
+ " 67%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‹ | 114/171 [01:09<00:29, 1.93it/s]"
792
+ ]
793
+ },
794
+ {
795
+ "name": "stdout",
796
+ "output_type": "stream",
797
+ "text": [
798
+ "{'eval_loss': 0.7558169364929199, 'eval_accuracy': 0.8165137614678899, 'eval_runtime': 3.5593, 'eval_samples_per_second': 61.248, 'epoch': 2.0}\n"
799
+ ]
800
+ },
801
+ {
802
+ "name": "stderr",
803
+ "output_type": "stream",
804
+ "text": [
805
+ "\n",
806
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 171/171 [01:42<00:00, 1.66it/s]"
807
+ ]
808
+ },
809
+ {
810
+ "name": "stdout",
811
+ "output_type": "stream",
812
+ "text": [
813
+ "{'eval_loss': 0.5612818598747253, 'eval_accuracy': 0.8669724770642202, 'eval_runtime': 3.3543, 'eval_samples_per_second': 64.991, 'epoch': 3.0}\n",
814
+ "{'train_runtime': 102.7742, 'train_samples_per_second': 1.664, 'epoch': 3.0}\n"
815
+ ]
816
+ },
817
+ {
818
+ "name": "stderr",
819
+ "output_type": "stream",
820
+ "text": [
821
+ "\n"
822
+ ]
823
+ },
824
+ {
825
+ "data": {
826
+ "text/plain": [
827
+ "TrainOutput(global_step=171, training_loss=0.276075485854121, metrics={'train_runtime': 102.7742, 'train_samples_per_second': 1.664, 'epoch': 3.0})"
828
+ ]
829
+ },
830
+ "execution_count": 22,
831
+ "metadata": {},
832
+ "output_type": "execute_result"
833
+ }
834
+ ],
835
+ "source": [
836
+ "trainer.train()"
837
+ ]
838
+ },
839
+ {
840
+ "cell_type": "markdown",
841
+ "metadata": {},
842
+ "source": [
843
+ "# A Full Training"
844
+ ]
845
+ },
846
+ {
847
+ "cell_type": "code",
848
+ "execution_count": 5,
849
+ "metadata": {},
850
+ "outputs": [
851
+ {
852
+ "name": "stderr",
853
+ "output_type": "stream",
854
+ "text": [
855
+ "Reusing dataset glue (C:\\Users\\1seba\\.cache\\huggingface\\datasets\\glue\\mrpc\\1.0.0\\dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad)\n",
856
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 4/4 [00:00<00:00, 7.09ba/s]\n",
857
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 1/1 [00:00<00:00, 16.39ba/s]\n",
858
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 2/2 [00:00<00:00, 9.01ba/s]\n"
859
+ ]
860
+ }
861
+ ],
862
+ "source": [
863
+ "# setup\n",
864
+ "from datasets import load_dataset\n",
865
+ "from transformers import AutoTokenizer, DataCollatorWithPadding\n",
866
+ "\n",
867
+ "raw_datasets = load_dataset(\"glue\", \"mrpc\")\n",
868
+ "checkpoint = \"bert-base-uncased\"\n",
869
+ "tokenizer = AutoTokenizer.from_pretrained(checkpoint)\n",
870
+ "def tokenize_function(example):\n",
871
+ " return tokenizer(example[\"sentence1\"], example[\"sentence2\"], truncation=True)\n",
872
+ "tokenized_datasets = raw_datasets.map(tokenize_function, batched=True)\n",
873
+ "data_collator = DataCollatorWithPadding(tokenizer=tokenizer)"
874
+ ]
875
+ },
876
+ {
877
+ "cell_type": "code",
878
+ "execution_count": 6,
879
+ "metadata": {},
880
+ "outputs": [
881
+ {
882
+ "data": {
883
+ "text/plain": [
884
+ "['attention_mask', 'input_ids', 'labels', 'token_type_ids']"
885
+ ]
886
+ },
887
+ "execution_count": 6,
888
+ "metadata": {},
889
+ "output_type": "execute_result"
890
+ }
891
+ ],
892
+ "source": [
893
+ "tokenized_datasets = tokenized_datasets.remove_columns([\"idx\", \"sentence1\", \"sentence2\"])\n",
894
+ "tokenized_datasets = tokenized_datasets.rename_column('label', 'labels')\n",
895
+ "tokenized_datasets.set_format('torch')\n",
896
+ "tokenized_datasets['train'].column_names"
897
+ ]
898
+ },
899
+ {
900
+ "cell_type": "code",
901
+ "execution_count": 7,
902
+ "metadata": {},
903
+ "outputs": [],
904
+ "source": [
905
+ "from torch.utils.data import DataLoader\n",
906
+ "train_dataloader = DataLoader(\n",
907
+ " tokenized_datasets['train'].shard(num_shards=15, index=0), shuffle=True, batch_size=8, collate_fn=data_collator\n",
908
+ ")\n",
909
+ "eval_dataloader = DataLoader(\n",
910
+ " tokenized_datasets['validation'].shard(num_shards=5, index=0), batch_size=8, collate_fn=data_collator\n",
911
+ ")"
912
+ ]
913
+ },
914
+ {
915
+ "cell_type": "code",
916
+ "execution_count": 60,
917
+ "metadata": {},
918
+ "outputs": [
919
+ {
920
+ "data": {
921
+ "text/plain": [
922
+ "{'attention_mask': torch.Size([8, 64]),\n",
923
+ " 'input_ids': torch.Size([8, 64]),\n",
924
+ " 'labels': torch.Size([8]),\n",
925
+ " 'token_type_ids': torch.Size([8, 64])}"
926
+ ]
927
+ },
928
+ "execution_count": 60,
929
+ "metadata": {},
930
+ "output_type": "execute_result"
931
+ }
932
+ ],
933
+ "source": [
934
+ "for batch in train_dataloader:\n",
935
+ " break\n",
936
+ "{k: v.shape for k, v in batch.items()}"
937
+ ]
938
+ },
939
+ {
940
+ "cell_type": "code",
941
+ "execution_count": 61,
942
+ "metadata": {},
943
+ "outputs": [
944
+ {
945
+ "name": "stderr",
946
+ "output_type": "stream",
947
+ "text": [
948
+ "Some weights of the model checkpoint at bert-base-uncased were not used when initializing BertForSequenceClassification: ['cls.seq_relationship.weight', 'cls.predictions.bias', 'cls.predictions.transform.LayerNorm.weight', 'cls.seq_relationship.bias', 'cls.predictions.transform.dense.bias', 'cls.predictions.transform.LayerNorm.bias', 'cls.predictions.transform.dense.weight', 'cls.predictions.decoder.weight']\n",
949
+ "- This IS expected if you are initializing BertForSequenceClassification from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).\n",
950
+ "- This IS NOT expected if you are initializing BertForSequenceClassification from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).\n",
951
+ "Some weights of BertForSequenceClassification were not initialized from the model checkpoint at bert-base-uncased and are newly initialized: ['classifier.bias', 'classifier.weight']\n",
952
+ "You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.\n"
953
+ ]
954
+ }
955
+ ],
956
+ "source": [
957
+ "from transformers import AutoModelForSequenceClassification\n",
958
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint, num_labels=2)"
959
+ ]
960
+ },
961
+ {
962
+ "cell_type": "code",
963
+ "execution_count": 62,
964
+ "metadata": {},
965
+ "outputs": [
966
+ {
967
+ "name": "stdout",
968
+ "output_type": "stream",
969
+ "text": [
970
+ "tensor(0.5705, grad_fn=<NllLossBackward>) torch.Size([8, 2])\n"
971
+ ]
972
+ }
973
+ ],
974
+ "source": [
975
+ "outputs = model(**batch)\n",
976
+ "print(outputs.loss, outputs.logits.shape)"
977
+ ]
978
+ },
979
+ {
980
+ "cell_type": "code",
981
+ "execution_count": 63,
982
+ "metadata": {},
983
+ "outputs": [],
984
+ "source": [
985
+ "from transformers import AdamW\n",
986
+ "optimizer = AdamW(model.parameters(), lr=5e-5)"
987
+ ]
988
+ },
989
+ {
990
+ "cell_type": "code",
991
+ "execution_count": 64,
992
+ "metadata": {},
993
+ "outputs": [
994
+ {
995
+ "name": "stdout",
996
+ "output_type": "stream",
997
+ "text": [
998
+ "93\n"
999
+ ]
1000
+ }
1001
+ ],
1002
+ "source": [
1003
+ "from transformers import get_scheduler\n",
1004
+ "num_epochs = 3\n",
1005
+ "num_training_steps = num_epochs * len(train_dataloader)\n",
1006
+ "lr_scheduler = get_scheduler(\n",
1007
+ " 'linear',\n",
1008
+ " optimizer,\n",
1009
+ " num_warmup_steps=0,\n",
1010
+ " num_training_steps=num_training_steps,\n",
1011
+ ")\n",
1012
+ "print(num_training_steps)\n"
1013
+ ]
1014
+ },
1015
+ {
1016
+ "cell_type": "code",
1017
+ "execution_count": 65,
1018
+ "metadata": {},
1019
+ "outputs": [
1020
+ {
1021
+ "data": {
1022
+ "text/plain": [
1023
+ "device(type='cuda')"
1024
+ ]
1025
+ },
1026
+ "execution_count": 65,
1027
+ "metadata": {},
1028
+ "output_type": "execute_result"
1029
+ }
1030
+ ],
1031
+ "source": [
1032
+ "import torch\n",
1033
+ "device = torch.device('cuda') if torch.cuda.is_available() else torch.device('cpu')\n",
1034
+ "model.to(device)\n",
1035
+ "device"
1036
+ ]
1037
+ },
1038
+ {
1039
+ "cell_type": "code",
1040
+ "execution_count": 71,
1041
+ "metadata": {},
1042
+ "outputs": [
1043
+ {
1044
+ "name": "stderr",
1045
+ "output_type": "stream",
1046
+ "text": [
1047
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 93/93 [08:50<00:00, 5.70s/it]\n",
1048
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 93/93 [00:28<00:00, 3.21it/s]"
1049
+ ]
1050
+ }
1051
+ ],
1052
+ "source": [
1053
+ "from tqdm.auto import tqdm\n",
1054
+ "progress_bar = tqdm(range(num_training_steps))\n",
1055
+ "model.train()\n",
1056
+ "for epoch in range(num_epochs):\n",
1057
+ " for batch in train_dataloader:\n",
1058
+ " batch = {k: v.to(device) for k, v in batch.items()}\n",
1059
+ " outputs = model(**batch)\n",
1060
+ " loss = outputs.loss\n",
1061
+ " loss.backward()\n",
1062
+ " optimizer.step()\n",
1063
+ " optimizer.zero_grad()\n",
1064
+ " progress_bar.update(1)\n",
1065
+ " \n",
1066
+ " # metric = load_metric('glue', 'mrpc')\n",
1067
+ " # model.eval()\n",
1068
+ " # for batch in eval_dataloader:\n",
1069
+ " # batch = {k: v.to(device) for k, v in batch.items()}\n",
1070
+ " # with torch.no_grad():\n",
1071
+ " # outputs = model(**batch)\n",
1072
+ " # logits = outputs.logits\n",
1073
+ " # predictions = torch.argmax(logits, dim=-1)\n",
1074
+ " # metric.add_batch(predictions=predictions, references=batch['labels'])\n",
1075
+ " # print(metric.compute())"
1076
+ ]
1077
+ },
1078
+ {
1079
+ "cell_type": "code",
1080
+ "execution_count": 109,
1081
+ "metadata": {},
1082
+ "outputs": [
1083
+ {
1084
+ "data": {
1085
+ "text/plain": [
1086
+ "{'accuracy': 0.6463414634146342, 'f1': 0.7851851851851851}"
1087
+ ]
1088
+ },
1089
+ "execution_count": 109,
1090
+ "metadata": {},
1091
+ "output_type": "execute_result"
1092
+ }
1093
+ ],
1094
+ "source": [
1095
+ "from datasets import load_metric\n",
1096
+ "metric = load_metric('glue', 'mrpc')\n",
1097
+ "model.eval()\n",
1098
+ "for batch in eval_dataloader:\n",
1099
+ " batch = {k: v.to(device) for k, v in batch.items()}\n",
1100
+ " with torch.no_grad():\n",
1101
+ " outputs = model(**batch)\n",
1102
+ " logits = outputs.logits\n",
1103
+ " predictions = torch.argmax(logits, dim=-1)\n",
1104
+ " metric.add_batch(predictions=predictions, references=batch['labels'])\n",
1105
+ "metric.compute()"
1106
+ ]
1107
+ },
1108
+ {
1109
+ "cell_type": "markdown",
1110
+ "metadata": {},
1111
+ "source": [
1112
+ "## Challenge 1"
1113
+ ]
1114
+ },
1115
+ {
1116
+ "cell_type": "code",
1117
+ "execution_count": 20,
1118
+ "metadata": {},
1119
+ "outputs": [
1120
+ {
1121
+ "name": "stderr",
1122
+ "output_type": "stream",
1123
+ "text": [
1124
+ "Reusing dataset glue (C:\\Users\\1seba\\.cache\\huggingface\\datasets\\glue\\sst2\\1.0.0\\dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad)\n",
1125
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 68/68 [00:03<00:00, 20.33ba/s]\n",
1126
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 1/1 [00:00<00:00, 17.24ba/s]\n",
1127
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 2/2 [00:00<00:00, 16.53ba/s]\n"
1128
+ ]
1129
+ }
1130
+ ],
1131
+ "source": [
1132
+ "device = torch.device('cuda') if torch.cuda.is_available() else torch.device('cpu')\n",
1133
+ "\n",
1134
+ "sst2_datasets = load_dataset(\"glue\", \"sst2\")\n",
1135
+ "def tokenize_function (example):\n",
1136
+ " return tokenizer(example['sentence'], truncation=True)\n",
1137
+ "tokenized_datasets = sst2_datasets.map(tokenize_function, batched=True)\n",
1138
+ "tokenized_datasets = tokenized_datasets.remove_columns([\"idx\", \"sentence\"])\n",
1139
+ "tokenized_datasets = tokenized_datasets.rename_column('label', 'labels')\n",
1140
+ "tokenized_datasets.set_format('torch')\n",
1141
+ "data_collator = DataCollatorWithPadding(tokenizer=tokenizer)\n",
1142
+ "train_dataset = DataLoader(\n",
1143
+ " tokenized_datasets['train'].shard(num_shards=180, index=0), shuffle=True, batch_size=8, collate_fn=data_collator\n",
1144
+ ")\n",
1145
+ "eval_dataset = DataLoader(\n",
1146
+ " tokenized_datasets['validation'].shard(num_shards=4, index=0), batch_size=8, collate_fn=data_collator\n",
1147
+ ")"
1148
+ ]
1149
+ },
1150
+ {
1151
+ "cell_type": "code",
1152
+ "execution_count": 31,
1153
+ "metadata": {},
1154
+ "outputs": [
1155
+ {
1156
+ "name": "stderr",
1157
+ "output_type": "stream",
1158
+ "text": [
1159
+ "Some weights of the model checkpoint at bert-base-uncased were not used when initializing BertForSequenceClassification: ['cls.predictions.transform.LayerNorm.weight', 'cls.predictions.decoder.weight', 'cls.predictions.transform.dense.weight', 'cls.predictions.transform.LayerNorm.bias', 'cls.seq_relationship.bias', 'cls.predictions.bias', 'cls.predictions.transform.dense.bias', 'cls.seq_relationship.weight']\n",
1160
+ "- This IS expected if you are initializing BertForSequenceClassification from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).\n",
1161
+ "- This IS NOT expected if you are initializing BertForSequenceClassification from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).\n",
1162
+ "Some weights of BertForSequenceClassification were not initialized from the model checkpoint at bert-base-uncased and are newly initialized: ['classifier.weight', 'classifier.bias']\n",
1163
+ "You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.\n",
1164
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 141/141 [18:15<00:00, 7.77s/it]\n",
1165
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 141/141 [01:12<00:00, 2.21it/s]"
1166
+ ]
1167
+ },
1168
+ {
1169
+ "name": "stdout",
1170
+ "output_type": "stream",
1171
+ "text": [
1172
+ "[{'accuracy': 0.7568807339449541}, {'accuracy': 0.8256880733944955}, {'accuracy': 0.8623853211009175}]\n"
1173
+ ]
1174
+ }
1175
+ ],
1176
+ "source": [
1177
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint, num_labels=2)\n",
1178
+ "model.to(device)\n",
1179
+ "optimizer= AdamW(model.parameters(), 5e-5)\n",
1180
+ "\n",
1181
+ "num_epochs = 3\n",
1182
+ "num_training_steps = num_epochs * len(train_dataset)\n",
1183
+ "lr_scheduler = get_scheduler(\n",
1184
+ " 'linear',\n",
1185
+ " optimizer=optimizer,\n",
1186
+ " num_warmup_steps=0,\n",
1187
+ " num_training_steps=num_training_steps,\n",
1188
+ ")\n",
1189
+ "\n",
1190
+ "metrics = []\n",
1191
+ "\n",
1192
+ "progress_bar = tqdm(range(num_training_steps))\n",
1193
+ "model.train()\n",
1194
+ "for epoch in range(num_epochs):\n",
1195
+ " for batch in train_dataset:\n",
1196
+ " batch = {k: v.to(device) for k, v in batch.items()}\n",
1197
+ " outputs = model(**batch)\n",
1198
+ " loss = outputs.loss\n",
1199
+ " loss.backward()\n",
1200
+ " optimizer.step()\n",
1201
+ " lr_scheduler.step()\n",
1202
+ " optimizer.zero_grad()\n",
1203
+ " progress_bar.update(1)\n",
1204
+ "\n",
1205
+ " metric= load_metric(\"glue\", \"sst2\")\n",
1206
+ " model.eval()\n",
1207
+ " for batch in eval_dataset:\n",
1208
+ " batch = {k: v.to(device) for k, v in batch.items()}\n",
1209
+ " with torch.no_grad():\n",
1210
+ " outputs = model(**batch)\n",
1211
+ " logits = outputs.logits\n",
1212
+ " predictions = torch.argmax(logits, dim=-1)\n",
1213
+ " metric.add_batch(predictions=predictions, references=batch[\"labels\"])\n",
1214
+ " metrics.append(metric.compute())\n",
1215
+ "\n",
1216
+ "print(metrics)"
1217
+ ]
1218
+ },
1219
+ {
1220
+ "cell_type": "markdown",
1221
+ "metadata": {},
1222
+ "source": [
1223
+ "## (end)"
1224
+ ]
1225
+ },
1226
+ {
1227
+ "cell_type": "code",
1228
+ "execution_count": 8,
1229
+ "metadata": {},
1230
+ "outputs": [],
1231
+ "source": [
1232
+ "from accelerate import Accelerator\n",
1233
+ "accelerator = Accelerator()"
1234
+ ]
1235
+ },
1236
+ {
1237
+ "cell_type": "code",
1238
+ "execution_count": 9,
1239
+ "metadata": {},
1240
+ "outputs": [
1241
+ {
1242
+ "name": "stderr",
1243
+ "output_type": "stream",
1244
+ "text": [
1245
+ "Some weights of the model checkpoint at bert-base-uncased were not used when initializing BertForSequenceClassification: ['cls.predictions.transform.dense.weight', 'cls.predictions.decoder.weight', 'cls.predictions.bias', 'cls.predictions.transform.LayerNorm.bias', 'cls.seq_relationship.weight', 'cls.predictions.transform.dense.bias', 'cls.seq_relationship.bias', 'cls.predictions.transform.LayerNorm.weight']\n",
1246
+ "- This IS expected if you are initializing BertForSequenceClassification from the checkpoint of a model trained on another task or with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPreTraining model).\n",
1247
+ "- This IS NOT expected if you are initializing BertForSequenceClassification from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).\n",
1248
+ "Some weights of BertForSequenceClassification were not initialized from the model checkpoint at bert-base-uncased and are newly initialized: ['classifier.weight', 'classifier.bias']\n",
1249
+ "You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.\n",
1250
+ "100%|β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ| 93/93 [01:11<00:00, 1.85it/s]"
1251
+ ]
1252
+ },
1253
+ {
1254
+ "name": "stdout",
1255
+ "output_type": "stream",
1256
+ "text": [
1257
+ "[{'accuracy': 0.6707317073170732}, {'accuracy': 0.7073170731707317}, {'accuracy': 0.7560975609756098}]\n"
1258
+ ]
1259
+ }
1260
+ ],
1261
+ "source": [
1262
+ "model = AutoModelForSequenceClassification.from_pretrained(checkpoint, num_labels=2)\n",
1263
+ "optimizer= AdamW(model.parameters(), 5e-5)\n",
1264
+ "train_dataloader, eval_dataloader, model, optimizer = accelerator.prepare(\n",
1265
+ " train_dataloader, eval_dataloader, model, optimizer\n",
1266
+ ")\n",
1267
+ "\n",
1268
+ "num_epochs = 3\n",
1269
+ "num_training_steps = num_epochs * len(train_dataloader)\n",
1270
+ "lr_scheduler = get_scheduler(\n",
1271
+ " 'linear',\n",
1272
+ " optimizer=optimizer,\n",
1273
+ " num_warmup_steps=0,\n",
1274
+ " num_training_steps=num_training_steps,\n",
1275
+ ")\n",
1276
+ "\n",
1277
+ "metrics = []\n",
1278
+ "\n",
1279
+ "progress_bar = tqdm(range(num_training_steps))\n",
1280
+ "model.train()\n",
1281
+ "for epoch in range(num_epochs):\n",
1282
+ " for batch in train_dataloader:\n",
1283
+ " outputs = model(**batch)\n",
1284
+ " loss = outputs.loss\n",
1285
+ " accelerator.backward(loss)\n",
1286
+ " optimizer.step()\n",
1287
+ " lr_scheduler.step()\n",
1288
+ " optimizer.zero_grad()\n",
1289
+ " progress_bar.update(1)\n",
1290
+ "\n",
1291
+ " metric= load_metric(\"glue\", \"sst2\")\n",
1292
+ " model.eval()\n",
1293
+ " for batch in eval_dataloader:\n",
1294
+ " with torch.no_grad():\n",
1295
+ " outputs = model(**batch)\n",
1296
+ " logits = outputs.logits\n",
1297
+ " predictions = torch.argmax(logits, dim=-1)\n",
1298
+ " metric.add_batch(predictions=predictions, references=batch[\"labels\"])\n",
1299
+ " metrics.append(metric.compute())\n",
1300
+ "\n",
1301
+ "print(metrics)"
1302
+ ]
1303
+ },
1304
+ {
1305
+ "cell_type": "code",
1306
+ "execution_count": null,
1307
+ "metadata": {},
1308
+ "outputs": [],
1309
+ "source": []
1310
+ }
1311
+ ],
1312
+ "metadata": {
1313
+ "interpreter": {
1314
+ "hash": "c23364dc34acf6d559b2ccbb804894040b11f1b7cd300b891de29d32dea3c2c2"
1315
+ },
1316
+ "kernelspec": {
1317
+ "display_name": "Python 3.8.10 64-bit ('AI': conda)",
1318
+ "name": "python3"
1319
+ },
1320
+ "language_info": {
1321
+ "codemirror_mode": {
1322
+ "name": "ipython",
1323
+ "version": 3
1324
+ },
1325
+ "file_extension": ".py",
1326
+ "mimetype": "text/x-python",
1327
+ "name": "python",
1328
+ "nbconvert_exporter": "python",
1329
+ "pygments_lexer": "ipython3",
1330
+ "version": "3.8.10"
1331
+ }
1332
+ },
1333
+ "nbformat": 4,
1334
+ "nbformat_minor": 5
1335
+ }