Изменил(а) на 'labworks/LW4/readme.md'

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ZheleznovAO 3 недель назад
Родитель 726e16279d
Сommit 74b3153372

@ -98,6 +98,7 @@ MIN Len: 500
print(X_train[27])
print('len:',len(X_train[27]))
```
```
[ 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
@ -135,13 +136,16 @@ print('len:',len(X_train[27]))
54 36 271 6 20 2 181 6 52 130 60 48 12 9
2 21 4 64 835 133 9 4 130 806]
len: 500
```
```python
review_as_text = ' '.join(id_to_word[id] for id in X_train[26])
print(review_as_text)
print('len:',len(review_as_text))
```
```
<PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <PAD> <START> director fred <UNK> <UNK> directs this well <UNK> but inferior comedy about albert <UNK> matthau trying to hook his scientific <UNK> ryan up with ordinary guy tim <UNK> in order to get her to <UNK> and enjoy life in the 1950's to get ryan to like <UNK> <UNK> tries to make <UNK> look like a brilliant scientist the idea is cute but the film falls flat with corny situations and silly dialogue tim <UNK> <UNK> ryan and the terrific supporting cast do their best to keep this silly comedy <UNK> but are unable to rescue the film its unfortunate that so much talent went into producing such a <UNK> movie i would not recommend to anybody unless they are huge fans of <UNK> ryan
len: 2932
```
После обработки в начало отзыва добавилось необходимое количество токенов , чтобы отзыв был длинной в 500 индексов.
### 7) Вывели предобработанные массивы обучающих и тестовых данных и их размерности.
```python
@ -153,6 +157,7 @@ print('X train: \n',X_test)
print('Shape of X train:', X_train.shape)
print('Shape of X test:', X_test.shape)
```
```
X train:
[[ 0 0 0 ... 8 106 53]
[ 0 0 0 ... 404 10 10]
@ -171,6 +176,7 @@ X train:
[ 0 0 0 ... 418 7 595]]
Shape of X train: (25000, 500)
Shape of X test: (25000, 500)
```
###8) Реализовали модель рекуррентной нейронной сети, состоящей из слоев Embedding, LSTM, Dropout, Dense, и обучили ее на обучающих данных с выделением части обучающих данных в качестве валидационных. Вывели информацию об архитектуре нейронной сети. Добились качества обучения по метрике accuracy не менее 0.8.
```python
embed_dim = 32
@ -212,6 +218,7 @@ epochs = 3
model.compile(loss="binary_crossentropy", optimizer="adam", metrics=["accuracy"])
model.fit(X_train, y_train, batch_size=batch_size, epochs=epochs, validation_split=0.2)
```
```
Epoch 1/3
313/313 ━━━━━━━━━━━━━━━━━━━━ 11s 22ms/step - accuracy: 0.6725 - loss: 0.5824 - val_accuracy: 0.8414 - val_loss: 0.3682
Epoch 2/3
@ -219,13 +226,16 @@ Epoch 2/3
Epoch 3/3
313/313 ━━━━━━━━━━━━━━━━━━━━ 7s 21ms/step - accuracy: 0.8603 - loss: 0.3303 - val_accuracy: 0.8634 - val_loss: 0.3218
<keras.src.callbacks.history.History at 0x7fc7d1d3b680>
```
```python
test_loss, test_acc = model.evaluate(X_test, y_test)
print(f"\nTest accuracy: {test_acc}")
```
```
782/782 ━━━━━━━━━━━━━━━━━━━━ 7s 8ms/step - accuracy: 0.8583 - loss: 0.3294
Test accuracy: 0.8605999946594238
```
###9) Оценили качество обучения на тестовых данных:
###вывели значение метрики качества классификации на тестовых данных
###вывели отчет о качестве классификации тестовой выборки

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