zad7

run7.ipynb

@@ -0,0 +1,273 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true,
+    "pycharm": {
+     "is_executing": true
+    }
+   },
+   "outputs": [],
+   "source": [
+    "import itertools\n",
+    "import lzma\n",
+    "\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": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "from google.colab import drive"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "def clean_line(line: str):\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 m in re.finditer(r'[\\p{L}0-9\\*]+|\\p{P}+', line):\n",
+    "        yield m.group(0).lower()\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 look_ahead_iterator(gen):\n",
+    "    prev = None\n",
+    "    for item in gen:\n",
+    "        if prev is not None:\n",
+    "            yield (prev, item)\n",
+    "        prev = item\n",
+    "\n",
+    "def prediction(word: str) -> str:\n",
+    "    ixs = torch.tensor(vocab.forward([word])).to(device)\n",
+    "    out = model(ixs)\n",
+    "    top = torch.topk(out[0], 5)\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]}' for x in zipped])\n",
+    "\n",
+    "def create_outputs(folder_name):\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.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()[-1]\n",
+    "                output_line = prediction(prefix)\n",
+    "                f.write(output_line + '\\n')\n",
+    "\n",
+    "class Bigrams(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 look_ahead_iterator(\n",
+    "            (self.vocab[t] for t in itertools.chain.from_iterable(get_word_lines_from_file(self.text_file))))\n",
+    "\n",
+    "class SimpleBigramNeuralLanguageModel(nn.Module):\n",
+    "    def __init__(self, vocabulary_size, embedding_size):\n",
+    "        super(SimpleBigramNeuralLanguageModel, self).__init__()\n",
+    "        self.model = nn.Sequential(\n",
+    "            nn.Embedding(vocabulary_size, embedding_size),\n",
+    "            nn.Linear(embedding_size, vocabulary_size),\n",
+    "            nn.Softmax()\n",
+    "        )\n",
+    "\n",
+    "    def forward(self, x):\n",
+    "        return self.model(x)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "vocab_size = 15000\n",
+    "embed_size = 150\n",
+    "batch_size = 3000\n",
+    "device = 'cuda'\n",
+    "path_to_train = 'train/in.tsv.xz'\n",
+    "path_to_model = 'model1.bin'"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "drive.mount('/content/drive')\n",
+    "%cd /content/drive/MyDrive/"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "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>'])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "train_dataset = Bigrams(path_to_train, vocab_size)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "model = SimpleBigramNeuralLanguageModel(vocab_size, embed_size).to(device)\n",
+    "data = DataLoader(train_dataset, batch_size=batch_size)\n",
+    "optimizer = torch.optim.Adam(model.parameters())\n",
+    "criterion = torch.nn.NLLLoss()\n",
+    "\n",
+    "model.train()\n",
+    "step = 0\n",
+    "for x, y in data:\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",
+    "    optimizer.step()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "torch.save(model.state_dict(), path_to_model)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "model = SimpleBigramNeuralLanguageModel(vocab_size, embed_size).to(device)\n",
+    "model.load_state_dict(torch.load(path_to_model))\n",
+    "model.eval()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "create_outputs('dev-0')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "create_outputs('test-A')"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}