challenging-america-word-ga.../neural_trigram.ipynb
2023-06-03 23:35:00 +02:00

1665 lines
123 KiB
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{
"cells": [
{
"cell_type": "code",
"execution_count": 6,
"metadata": {
"collapsed": true,
"id": "bAOmtZk6dzWU"
},
"outputs": [],
"source": [
"import itertools\n",
"import lzma\n",
"import numpy as np\n",
"import regex as re\n",
"import torch\n",
"from torch import nn\n",
"from torch.utils.data import IterableDataset, DataLoader\n",
"from torchtext.vocab import build_vocab_from_iterator"
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {
"id": "N35v7jfAdzWV"
},
"outputs": [],
"source": [
"vocab_size = 10000\n",
"embed_size = 200\n",
"hidden_size = 100\n",
"batch_size = 1000\n",
"device = 'cuda'\n",
"path_to_train = 'train/in.tsv.xz'\n",
"path_to_model = 'model1.bin'\n",
"\n",
"def clean_line(line: str):\n",
" # Preprocessing\n",
" separated = line.split('\\t')\n",
" prefix = separated[6].replace(r'\\n', ' ')\n",
" suffix = separated[7].replace(r'\\n', ' ')\n",
" return prefix + ' ' + suffix\n",
"\n",
"def get_words_from_line(line):\n",
" line = clean_line(line)\n",
" for word in line.split():\n",
" yield word\n",
"\n",
"def get_word_lines_from_file(file_name):\n",
" with lzma.open(file_name, mode='rt', encoding='utf-8') as fid:\n",
" for line in fid:\n",
" yield get_words_from_line(line)\n",
"\n",
"def double_look_ahead_iterator(gen):\n",
" prev_prev = None\n",
" prev = None\n",
" for item in gen:\n",
" if prev_prev is not None:\n",
" yield np.asarray((prev_prev, prev, item))\n",
" prev_prev = prev\n",
" prev = item\n",
"\n",
"def prediction(words, model, top) -> str:\n",
" words_tensor = [train_dataset.vocab.forward([word]) for word in words]\n",
" ixs = torch.tensor(words_tensor).view(-1).to(device)\n",
" out = model(ixs)\n",
" top = torch.topk(out[0], top)\n",
" top_indices = top.indices.tolist()\n",
" top_probs = top.values.tolist()\n",
" top_words = vocab.lookup_tokens(top_indices)\n",
" zipped = list(zip(top_words, top_probs))\n",
" for index, element in enumerate(zipped):\n",
" unk = None\n",
" if '<unk>' in element:\n",
" unk = zipped.pop(index)\n",
" zipped.append(('', unk[1]))\n",
" break\n",
" if unk is None:\n",
" zipped[-1] = ('', zipped[-1][1])\n",
" return ' '.join([f'{x[0]}:{x[1]:.5f}' for x in zipped])\n",
"\n",
"def create_outputs(folder_name, model, top):\n",
" print(f'Creating outputs in {folder_name}')\n",
" with lzma.open(f'{folder_name}/in.tsv.xz', mode='rt', encoding='utf-8') as fid:\n",
" with open(f'{folder_name}/out-top={top}.tsv', 'w', encoding='utf-8', newline='\\n') as f:\n",
" for line in fid:\n",
" separated = line.split('\\t')\n",
" prefix = separated[6].replace(r'\\n', ' ').split()[-2:]\n",
" output_line = prediction(prefix, model, top)\n",
" f.write(output_line + '\\n')\n",
"\n",
"def train_model(lr):\n",
" model = SimpleTrigramNeuralLanguageModel(vocab_size, embed_size, hidden_size).to(device)\n",
" data = DataLoader(train_dataset, batch_size=batch_size)\n",
" optimizer = torch.optim.Adam(model.parameters(), lr=lr)\n",
" criterion = torch.nn.NLLLoss()\n",
"\n",
" model.train()\n",
" step = 0\n",
" for batch in data:\n",
" x = batch[:, :2]\n",
" y = batch[:, 2]\n",
" x = x.to(device)\n",
" y = y.to(device)\n",
" optimizer.zero_grad()\n",
" ypredicted = model(x)\n",
" loss = criterion(torch.log(ypredicted), y)\n",
" if step % 100 == 0:\n",
" print(step, loss)\n",
" step += 1\n",
" loss.backward()\n",
"\n",
" torch.nn.utils.clip_grad_norm_(model.parameters(), 10)\n",
"\n",
"\n",
" optimizer.step()\n",
"\n",
" torch.save(model.state_dict(), path_to_model)\n",
"\n",
"def with_hyperparams():\n",
" train_model(lr=0.0001)\n",
" model = SimpleTrigramNeuralLanguageModel(vocab_size, embed_size, hidden_size).to(device)\n",
" model.load_state_dict(torch.load(path_to_model))\n",
" model.eval()\n",
" for top in [200, 400, 600]:\n",
" create_outputs('dev-0', model, top)\n",
" create_outputs('test-A', model, top)\n",
"\n",
"class Trigrams(IterableDataset):\n",
" def __init__(self, text_file, vocabulary_size):\n",
" self.vocab = build_vocab_from_iterator(\n",
" get_word_lines_from_file(text_file),\n",
" max_tokens=vocabulary_size,\n",
" specials=['<unk>'])\n",
" self.vocab.set_default_index(self.vocab['<unk>'])\n",
" self.vocabulary_size = vocabulary_size\n",
" self.text_file = text_file\n",
"\n",
" def __iter__(self):\n",
" return double_look_ahead_iterator(\n",
" (self.vocab[t] for t in itertools.chain.from_iterable(get_word_lines_from_file(self.text_file))))\n",
"\n",
"\n",
"class SimpleTrigramNeuralLanguageModel(nn.Module):\n",
" def __init__(self, vocabulary_size, embedding_size, hidden_size):\n",
" super(SimpleTrigramNeuralLanguageModel, self).__init__()\n",
" self.embedding_size = embedding_size\n",
" self.embedding = nn.Embedding(vocabulary_size, embedding_size)\n",
" self.lin1 = nn.Linear(2 * embedding_size, hidden_size)\n",
" self.rel = nn.ReLU()\n",
" self.lin2 = nn.Linear(hidden_size, vocabulary_size)\n",
" self.sm = nn.Softmax()\n",
"\n",
" def forward(self, x):\n",
" x = self.embedding(x).view((-1, 2 * self.embedding_size))\n",
" x = self.lin1(x)\n",
" x = self.rel(x)\n",
" x = self.lin2(x)\n",
" return self.sm(x)"
]
},
{
"cell_type": "code",
"execution_count": 8,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"id": "NkOOve5pdzWZ",
"outputId": "35cf7a57-a1e3-4194-c76f-708d8929511f"
},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Mounted at /content/drive\n",
"/content/drive/MyDrive/modelowanie_jezyka\n"
]
}
],
"source": [
"from google.colab import drive\n",
"\n",
"drive.mount('/content/drive',force_remount=True)\n",
"%cd /content/drive/MyDrive/modelowanie_jezyka"
]
},
{
"cell_type": "code",
"execution_count": 9,
"metadata": {
"id": "4RYvjsWvdzWZ"
},
"outputs": [],
"source": [
"vocab = build_vocab_from_iterator(\n",
" get_word_lines_from_file(path_to_train),\n",
" max_tokens=vocab_size,\n",
" specials=['<unk>']\n",
")\n",
"\n",
"vocab.set_default_index(vocab['<unk>'])\n",
"train_dataset = Trigrams(path_to_train, vocab_size)"
]
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"id": "9gg3bNu5dzWZ",
"outputId": "17b973c6-0247-4fe2-85c6-a97dc02242e1"
},
"outputs": [
{
"metadata": {
"tags": null
},
"name": "stderr",
"output_type": "stream",
"text": [
"<ipython-input-7-15bd6173eff4>:131: UserWarning: Implicit dimension choice for softmax has been deprecated. Change the call to include dim=X as an argument.\n",
" return self.sm(x)\n"
]
},
{
"output_type": "stream",
"name": "stdout",
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"133800 tensor(4.8784, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"133900 tensor(4.6728, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134000 tensor(4.7126, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134100 tensor(4.5749, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134200 tensor(4.4029, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134300 tensor(4.7075, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134400 tensor(5.0396, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134500 tensor(4.6848, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134600 tensor(5.0197, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134700 tensor(4.7742, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134800 tensor(4.8104, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"134900 tensor(4.8825, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135000 tensor(4.7189, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135100 tensor(4.6685, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135200 tensor(4.7691, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135300 tensor(4.7166, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135400 tensor(4.6312, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135500 tensor(4.9367, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135600 tensor(4.8343, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135700 tensor(4.8131, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135800 tensor(4.7636, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"135900 tensor(4.6484, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136000 tensor(4.7523, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136100 tensor(4.8950, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136200 tensor(4.9203, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136300 tensor(4.8050, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136400 tensor(4.8176, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136500 tensor(4.4287, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136600 tensor(4.5731, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136700 tensor(4.7796, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136800 tensor(5.1640, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"136900 tensor(4.5927, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137000 tensor(4.5682, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137100 tensor(5.0697, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137200 tensor(4.8193, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137300 tensor(4.8367, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137400 tensor(4.9668, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137500 tensor(4.6632, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137600 tensor(5.2432, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137700 tensor(4.6309, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137800 tensor(4.7814, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"137900 tensor(4.4679, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138000 tensor(4.9990, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138100 tensor(4.6476, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138200 tensor(4.9484, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138300 tensor(4.8118, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138400 tensor(4.8842, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138500 tensor(4.7052, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138600 tensor(3.9411, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138700 tensor(5.0011, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138800 tensor(4.8827, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"138900 tensor(4.8508, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"139000 tensor(4.6841, device='cuda:0', grad_fn=<NllLossBackward0>)\n",
"Creating outputs in dev-0\n",
"Creating outputs in test-A\n",
"Creating outputs in dev-0\n",
"Creating outputs in test-A\n",
"Creating outputs in dev-0\n",
"Creating outputs in test-A\n"
]
}
],
"source": [
"with_hyperparams()"
]
}
],
"metadata": {
"accelerator": "GPU",
"colab": {
"provenance": []
},
"gpuClass": "standard",
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.12"
}
},
"nbformat": 4,
"nbformat_minor": 0
}