我正在尝试构建一个基于 LSTM RNN 的深度学习网络,这是尝试过的
from keras.models import Sequential
from keras.layers import Dense, Dropout, Activation
from keras.layers import Embedding
from keras.layers import LSTM
import numpy as np
train = np.loadtxt("TrainDatasetFinal.txt", delimiter=",")
test = np.loadtxt("testDatasetFinal.txt", delimiter=",")
y_train = train[:,7]
y_test = test[:,7]
train_spec = train[:,6]
test_spec = test[:,6]
model = Sequential()
model.add(LSTM(32, input_shape=(1415684, 8),return_sequences=True))
model.add(LSTM(64, input_dim=8, input_length=1415684, return_sequences=True))
##model.add(Embedding(1, 256, input_length=5000))
##model.add(LSTM(64,input_dim=1, input_length=10, activation='sigmoid',
## return_sequences=True, inner_activation='hard_sigmoid'))
model.add(Dropout(0.5))
model.add(Dense(1))
model.add(Activation('sigmoid'))
model.compile(loss='binary_crossentropy', optimizer='rmsprop')
model.fit(train_spec, y_train, batch_size=2000, nb_epoch=11)
score = model.evaluate(test_spec, y_test, batch_size=2000)
但它给我带来了以下错误
ValueError: Error when checking input: expected lstm_1_input to have 3 dimensions, but got array with shape (1415684, 1)
这是数据集的示例
(患者编号、时间(毫秒)、加速度计 x 轴、y 轴、z 轴、幅度、频谱图、标签(0 或 1))
1,15,70,39,-970,947321,596768455815000,0
1,31,70,39,-970,947321,612882670787000,0
1,46,60,49,-960,927601,602179976392000,0
1,62,60,49,-960,927601,808020878060000,0
1,78,50,39,-960,925621,726154800929000,0
在数据集中,我仅使用频谱图作为输入特征,使用标签(0或1)作为输出,总训练样本为 1,415,684