62 lines
2.1 KiB
Python
62 lines
2.1 KiB
Python
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import numpy as np
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from keras.layers import LSTM, Dense
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from keras.models import Sequential
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from keras.preprocessing.sequence import pad_sequences
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from keras.preprocessing.text import Tokenizer
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# Чтение текста из файла
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# with open('russian.txt', 'r', encoding='utf-8') as file:
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# text = file.read()
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with open('english.txt', 'r', encoding='utf-8') as file:
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text = file.read()
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# Обучение Tokenizer на тексте
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tokenizer = Tokenizer(char_level=True)
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tokenizer.fit_on_texts([text])
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sequences = tokenizer.texts_to_sequences([text])[0]
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# Создание x, y последовательностей
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X_data, y_data = [], []
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seq_length = 10
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for i in range(seq_length, len(sequences)):
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sequence = sequences[i - seq_length:i]
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target = sequences[i]
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X_data.append(sequence)
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y_data.append(target)
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# Преобразование в массивы
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X_mass = pad_sequences(X_data, maxlen=seq_length)
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y_mass = np.array(y_data)
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# Создание модели
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vocab_size = len(tokenizer.word_index) + 1
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model = Sequential()
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model.add(LSTM(256, input_shape=(seq_length, 1), return_sequences=True))
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model.add(LSTM(128, input_shape=(seq_length, 1)))
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model.add(Dense(vocab_size, activation='softmax'))
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# Компиляция
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model.compile(loss='sparse_categorical_crossentropy', optimizer='adam', metrics=['accuracy'])
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# Обучение
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model.fit(X_mass, y_mass, epochs=100, verbose=1)
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# Функция генерации
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def generate_text(_text, gen_length):
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generated_text = _text
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for _ in range(gen_length):
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seq = tokenizer.texts_to_sequences([_text])[0]
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seq = pad_sequences([seq], maxlen=seq_length)
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prediction = model.predict(seq)[0]
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predicted_index = np.argmax(prediction)
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predicted_char = tokenizer.index_word[predicted_index]
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generated_text += predicted_char
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_text += predicted_char
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_text = _text[1:]
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return generated_text
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# Генерация текста
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# _text = "Она сверкала"
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_text = "It sparkled and smoked"
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generate_text = generate_text(_text, 250)
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print(generate_text)
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