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import lzma
from naivebayes import NaiveBayesTextClassifier
import nltk
from nltk.corpus import stopwords
nltk.download("stopwords")
# Read train files
with lzma.open("train/in.tsv.xz", "rt", encoding="utf-8") as train_file:
x_train = [x.strip().lower() for x in train_file.readlines()]
with open("train/expected.tsv", "r", encoding="utf-8") as train_file:
y_train = [int(x.strip()) for x in train_file.readlines()]
nbc = NaiveBayesTextClassifier(
categories=[0, 1],
stop_words=stopwords.words("english"),
min_df=1
)
step = 15000
for i in range(0, len(x_train), step):
nbc.train(x_train[i:min(i+step, len(x_train))], y_train[i:min(i+step, len(x_train))])
# Read dev files
with lzma.open("dev-0/in.tsv.xz", "rt", encoding="utf-8") as dev_file:
x_dev = [x.strip().lower() for x in dev_file.readlines()]
# Read test file
with lzma.open("test-A/in.tsv.xz", "rt", encoding="utf-8") as test_file:
x_test = [x.strip().lower() for x in test_file.readlines()]
# Predict dev
pred_dev = [str(x) + "\n" for x in nbc.classify(x_dev)]
with open("dev-0/out.tsv", "w", encoding="utf-8") as dev_out_file:
dev_out_file.writelines(pred_dev)
# Predict dev
pred_test = [str(x) + "\n" for x in nbc.classify(x_test)]
with open("test-A/out.tsv", "w", encoding="utf-8") as test_out_file:
test_out_file.writelines(pred_test)

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{
"metadata": {
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.5-final"
},
"orig_nbformat": 2,
"kernelspec": {
"name": "python3",
"display_name": "Python 3.9.5 64-bit",
"metadata": {
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}
}
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},
"nbformat": 4,
"nbformat_minor": 2,
"cells": [
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [],
"source": [
"# https://gonito.net/challenge/paranormal-or-skeptic\n",
"# dane + wyniki -> https://git.wmi.amu.edu.pl/s444380/paranormal-or-skeptic-ISI-public"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
"import lzma\n",
"from keras.models import Sequential\n",
"from keras.layers import Dense\n",
"import tensorflow as tf\n",
"import numpy as np\n",
"from gensim import downloader"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {},
"outputs": [],
"source": [
"# Read train files\n",
"with lzma.open(\"train/in.tsv.xz\", \"rt\", encoding=\"utf-8\") as train_file:\n",
" x_train = [x.strip().lower() for x in train_file.readlines()]\n",
"\n",
"with open(\"train/expected.tsv\", \"r\", encoding=\"utf-8\") as train_file:\n",
" y_train = np.array([int(x.strip()) for x in train_file.readlines()])\n"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {},
"outputs": [],
"source": [
"word2vec = downloader.load(\"glove-twitter-200\")"
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {},
"outputs": [],
"source": [
"x_train_w2v = [np.mean([word2vec[word.lower()] for word in doc.split() if word.lower() in word2vec]\n",
" or [np.zeros(200)], axis=0) for doc in x_train]"
]
},
{
"cell_type": "code",
"execution_count": 24,
"metadata": {},
"outputs": [],
"source": [
"# Read dev files\n",
"with lzma.open(\"dev-0/in.tsv.xz\", \"rt\", encoding=\"utf-8\") as dev_file:\n",
" x_dev = [x.strip().lower() for x in dev_file.readlines()]\n",
"\n",
"with open(\"dev-0/expected.tsv\", \"r\", encoding=\"utf-8\") as train_file:\n",
" y_dev = np.array([int(x.strip()) for x in train_file.readlines()])\n",
"\n",
"x_dev_w2v = [np.mean([word2vec[word.lower()] for word in doc.split() if word.lower() in word2vec]\n",
" or [np.zeros(200)], axis=0) for doc in x_dev]"
]
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {},
"outputs": [],
"source": [
"# y_train = y_train.reshape(-1, 1)"
]
},
{
"cell_type": "code",
"execution_count": 22,
"metadata": {},
"outputs": [],
"source": [
"model = Sequential()\n",
"model.add(Dense(1000, activation='relu', input_dim=200))\n",
"model.add(Dense(500, activation='relu'))\n",
"model.add(Dense(1, activation='sigmoid'))\n",
"model.compile(optimizer='sgd', loss='binary_crossentropy', metrics=['accuracy'])"
]
},
{
"cell_type": "code",
"execution_count": 25,
"metadata": {},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Epoch 1/5\n",
"9050/9050 [==============================] - 48s 5ms/step - loss: 0.5244 - accuracy: 0.7303 - val_loss: 0.5536 - val_accuracy: 0.6910\n",
"Epoch 2/5\n",
"9050/9050 [==============================] - 47s 5ms/step - loss: 0.5132 - accuracy: 0.7367 - val_loss: 0.5052 - val_accuracy: 0.7475\n",
"Epoch 3/5\n",
"9050/9050 [==============================] - 47s 5ms/step - loss: 0.5067 - accuracy: 0.7396 - val_loss: 0.5091 - val_accuracy: 0.7320\n",
"Epoch 4/5\n",
"9050/9050 [==============================] - 47s 5ms/step - loss: 0.5025 - accuracy: 0.7429 - val_loss: 0.5343 - val_accuracy: 0.7071\n",
"Epoch 5/5\n",
"9050/9050 [==============================] - 47s 5ms/step - loss: 0.4992 - accuracy: 0.7447 - val_loss: 0.5143 - val_accuracy: 0.7381\n"
]
}
],
"source": [
"history = model.fit(tf.stack(x_train_w2v), tf.stack(y_train), epochs=5, validation_data=(tf.stack(x_dev_w2v), tf.stack(y_dev)))"
]
}
]
}

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{
"metadata": {
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.5-final"
},
"orig_nbformat": 2,
"kernelspec": {
"name": "python3",
"display_name": "Python 3.9.5 64-bit",
"metadata": {
"interpreter": {
"hash": "ac59ebe37160ed0dfa835113d9b8498d9f09ceb179beaac4002f036b9467c963"
}
}
}
},
"nbformat": 4,
"nbformat_minor": 2,
"cells": [
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"# https://gonito.net/challenge/paranormal-or-skeptic\n",
"# dane + wyniki -> https://git.wmi.amu.edu.pl/s444380/paranormal-or-skeptic-ISI-public"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [],
"source": [
"import lzma\n",
"import torch\n",
"import numpy as np\n",
"from gensim import downloader"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
"BATCH_SIZE = 10\n",
"EPOCHS = 10\n",
"FEATURES = 200"
]
},
{
"cell_type": "code",
"execution_count": 23,
"metadata": {},
"outputs": [],
"source": [
"class NeuralNetworkModel(torch.nn.Module):\n",
"\n",
" def __init__(self):\n",
" super(NeuralNetworkModel, self).__init__()\n",
" self.fc1 = torch.nn.Linear(FEATURES, 1000)\n",
" self.fc2 = torch.nn.Linear(1000, 500)\n",
" self.fc3 = torch.nn.Linear(500, 1)\n",
"\n",
" def forward(self, x):\n",
" x = self.fc1(x)\n",
" x = torch.relu(x)\n",
" x = self.fc2(x)\n",
" x = torch.relu(x)\n",
" x = self.fc3(x)\n",
" x = torch.sigmoid(x)\n",
" return x"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {},
"outputs": [],
"source": [
"# Read train files\n",
"with lzma.open(\"train/in.tsv.xz\", \"rt\", encoding=\"utf-8\") as train_file:\n",
" x_train = [x.strip().lower() for x in train_file.readlines()]\n",
"\n",
"with open(\"train/expected.tsv\", \"r\", encoding=\"utf-8\") as train_file:\n",
" y_train = np.array([int(x.strip()) for x in train_file.readlines()])\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {},
"outputs": [],
"source": [
"word2vec = downloader.load(\"glove-twitter-200\")"
]
},
{
"cell_type": "code",
"execution_count": 8,
"metadata": {},
"outputs": [],
"source": [
"x_train_w2v = [np.mean([word2vec[word.lower()] for word in doc.split() if word.lower() in word2vec]\n",
" or [np.zeros(FEATURES)], axis=0) for doc in x_train]"
]
},
{
"cell_type": "code",
"execution_count": 24,
"metadata": {},
"outputs": [],
"source": [
"model = NeuralNetworkModel()\n",
"\n",
"criterion = torch.nn.BCELoss()\n",
"optimizer = torch.optim.ASGD(model.parameters(), lr=0.05)"
]
},
{
"cell_type": "code",
"execution_count": 25,
"metadata": {},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"0\n",
"0.5444966091123856 0.7128072132302411\n",
"1\n",
"0.5187017436751196 0.7303153888921503\n",
"2\n",
"0.5117590330604093 0.7348944502191112\n",
"3\n",
"0.5075270808198805 0.7376916143781145\n",
"4\n",
"0.5043017516287736 0.7403230206610286\n",
"5\n",
"0.5016950109024928 0.7418977204838748\n",
"6\n",
"0.49942716640870777 0.7432134236253319\n",
"7\n",
"0.49766424133924386 0.7448606425189672\n",
"8\n",
"0.49617289846816215 0.745534033890579\n",
"9\n",
"0.49471875689137873 0.7467116054686286\n"
]
}
],
"source": [
"for epoch in range(EPOCHS):\n",
" print(epoch)\n",
" loss_score = 0\n",
" acc_score = 0\n",
" items_total = 0\n",
" for i in range(0, y_train.shape[0], BATCH_SIZE):\n",
" x = x_train_w2v[i:i+BATCH_SIZE]\n",
" x = torch.tensor(np.array(x).astype(np.float32))\n",
" y = y_train[i:i+BATCH_SIZE]\n",
" y = torch.tensor(y.astype(np.float32)).reshape(-1, 1)\n",
" y_pred = model(x)\n",
" acc_score += torch.sum((y_pred > 0.5) == y).item()\n",
" items_total += y.shape[0]\n",
"\n",
" optimizer.zero_grad()\n",
" loss = criterion(y_pred, y)\n",
" loss.backward()\n",
" optimizer.step()\n",
"\n",
" loss_score += loss.item() * y.shape[0]\n",
" \n",
" print((loss_score / items_total), (acc_score / items_total))"
]
},
{
"cell_type": "code",
"execution_count": 26,
"metadata": {},
"outputs": [],
"source": [
"# Read dev files\n",
"with lzma.open(\"dev-0/in.tsv.xz\", \"rt\", encoding=\"utf-8\") as dev_file:\n",
" x_dev = [x.strip().lower() for x in dev_file.readlines()]"
]
},
{
"cell_type": "code",
"execution_count": 39,
"metadata": {},
"outputs": [],
"source": [
"x_dev_w2v = [np.mean([word2vec[word.lower()] for word in doc.split() if word.lower() in word2vec]\n",
" or [np.zeros(FEATURES)], axis=0) for doc in x_dev]"
]
},
{
"cell_type": "code",
"execution_count": 40,
"metadata": {},
"outputs": [],
"source": [
"y_dev = []\n",
"with torch.no_grad():\n",
" for i in range(0, len(x_dev_w2v), BATCH_SIZE):\n",
" x = x_dev_w2v[i:i+BATCH_SIZE]\n",
" x = torch.tensor(np.array(x).astype(np.float32))\n",
" \n",
" outputs = model(x)\n",
" \n",
" y = (outputs > 0.5)\n",
" y_dev.extend(y)"
]
},
{
"cell_type": "code",
"execution_count": 42,
"metadata": {},
"outputs": [],
"source": [
"with open(\"dev-0/out.tsv\", \"w\", encoding=\"utf-8\") as f:\n",
" f.writelines([str(y.int()[0].item()) + \"\\n\" for y in y_dev])"
]
},
{
"cell_type": "code",
"execution_count": 43,
"metadata": {},
"outputs": [],
"source": [
"# Read test files\n",
"with lzma.open(\"test-A/in.tsv.xz\", \"rt\", encoding=\"utf-8\") as test_file:\n",
" x_test = [x.strip().lower() for x in test_file.readlines()]"
]
},
{
"cell_type": "code",
"execution_count": 44,
"metadata": {},
"outputs": [],
"source": [
"x_test_w2v = [np.mean([word2vec[word.lower()] for word in doc.split() if word.lower() in word2vec]\n",
" or [np.zeros(FEATURES)], axis=0) for doc in x_test]"
]
},
{
"cell_type": "code",
"execution_count": 45,
"metadata": {},
"outputs": [],
"source": [
"y_test = []\n",
"with torch.no_grad():\n",
" for i in range(0, len(x_test_w2v), BATCH_SIZE):\n",
" x = x_test_w2v[i:i+BATCH_SIZE]\n",
" x = torch.tensor(np.array(x).astype(np.float32))\n",
" \n",
" outputs = model(x)\n",
" \n",
" y = (outputs > 0.5)\n",
" y_test.extend(y)"
]
},
{
"cell_type": "code",
"execution_count": 46,
"metadata": {},
"outputs": [],
"source": [
"with open(\"test-A/out.tsv\", \"w\", encoding=\"utf-8\") as f:\n",
" f.writelines([str(y.int()[0].item()) + \"\\n\" for y in y_test])"
]
}
]
}

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from simpletransformers.classification import ClassificationModel, ClassificationArgs
import pandas as pd
import logging
import torch
logging.basicConfig(level=logging.INFO)
transformer_logger = logging.getLogger("transformers")
transformer_logger.setLevel(logging.WARNING)
train_df = pd.read_csv("train/train.tsv", sep="\t")
print(train_df)
dev_df = pd.read_csv("dev-0/dev.tsv", sep="\t")
print(dev_df)
args = {
'train_batch_size': 32,
'learning_rate': 2e-5,
'evaluate_during_training': True,
'save_steps': 1000,
'evaluate_during_training_steps': 1000,
'evaluate_during_training_verbose': True,
'overwrite_output_dir': True,
'save_eval_checkpoints': True,
'use_early_stopping': True,
'early_stopping_patience': 5,
'num_train_epochs': 3
}
model = ClassificationModel("deberta", "microsoft/deberta-base", use_cuda=True, args=args)
model.train_model(train_df, eval_df=dev_df)

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from simpletransformers.classification import ClassificationModel
import pandas as pd
model = ClassificationModel("deberta", "outputs/best_model")
dev_df = pd.read_csv("dev-0/dev.tsv", sep="\t")
result, model_outputs, wrong_predictions = model.eval_model(dev_df)
print(result)
tp = result["tp"]
fp = result["fp"]
tn = result["tn"]
fn = result["fn"]
print(f"Accuracy: {(tp+tn)/(tp+fp+tn+fn)}")
precision = tp/(tp+fp)
print(f"Precision: {precision}")
recall = tp/(tp+fn)
print(f"Recall: {recall}")
print(f"F1-score: {2*precision*recall/(precision+recall)}")

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