input_dim, output_dim not working in updated keras tensorflow version

[ankitaggarwal-trantor]

Hi,

I am working on a stock prediction assignment and was trying to get some help from your script. But I am facing some issues in updated keras / tensorflow version. Seems like input_dim, output_dim functions has deprecated. Could you help me to update that code for updated version.

Also, as I can see in your code, you are sending 3 dimensional input data like (None, 20, 6) for model training. When I use same approach, I am getting 0.000 accuracy in every epoch. I do not understand what I am doing wrong.

Please have a look at my model code and correct me if anything wrong:

model = Sequential()
model.add(LSTM(512, input_shape=(X_train.shape[1], X_train.shape[2]), return_sequences=True))
model.add(Dropout(0.4))
model.add(LSTM(256, return_sequences=True))
model.add(Dropout(0.3))
model.add(LSTM(128, return_sequences=True))
model.add(Dropout(0.2))
model.add(LSTM(64, return_sequences=True))
model.add(Dropout(0.2))
model.add(LSTM(32))
model.add(Dense(1, activation='linear'))

model.compile(loss='mean_squared_error', optimizer='adam', metrics=['accuracy'])
model.summary() 

history = model.fit(X_train, y_train, epochs=5, batch_size=64, validation_split=0.10)

Train on 3458 samples, validate on 385 samples
Epoch 1/5
3458/3458 [==============================]3458/3458 [==============================] - 93s 27ms/step - loss: 0.0753 - acc: 0.0000e+00 - val_loss: 0.4183 - val_acc: 0.0000e+00

Epoch 2/5
3458/3458 [==============================]3458/3458 [==============================] - 78s 22ms/step - loss: 0.0145 - acc: 0.0000e+00 - val_loss: 0.1113 - val_acc: 0.0000e+00

Epoch 3/5
3458/3458 [==============================]3458/3458 [==============================] - 80s 23ms/step - loss: 0.0114 - acc: 0.0000e+00 - val_loss: 0.1157 - val_acc: 0.0000e+00

Epoch 4/5
3458/3458 [==============================]3458/3458 [==============================] - 97s 28ms/step - loss: 0.0097 - acc: 0.0000e+00 - val_loss: 0.0560 - val_acc: 0.0000e+00

Epoch 5/5
3458/3458 [==============================]3458/3458 [==============================] - 79s 23ms/step - loss: 0.0097 - acc: 0.0000e+00 - val_loss: 0.0951 - val_acc: 0.0000e+00

Regards,
Ankit Aggarwal

[robertselders1]

it work confirm. The last item sholud be :

if using within a jupyter notebook

%matplotlib inline

import matplotlib
import matplotlib.pyplot as plt2

plt2.plot(pred, color='red', label='Prediction')
plt2.plot(y_test, color='blue', label='Ground Truth')
plt2.legend(loc='upper left')
plt2.show()