Python 层lstm_9的输入0与层不兼容:预期ndim=3,发现ndim=4。收到完整形状:[无,2400256]
我尝试使用RNN网络创建模型,但收到:层lstm_9的输入0与层不兼容:预期ndim=3,发现ndim=4。收到完整形状:[None,2,4000,256]错误。 输入Python 层lstm_9的输入0与层不兼容:预期ndim=3,发现ndim=4。收到完整形状:[无,2400256],python,neural-network,recurrent-neural-network,Python,Neural Network,Recurrent Neural Network,我尝试使用RNN网络创建模型,但收到:层lstm_9的输入0与层不兼容:预期ndim=3,发现ndim=4。收到完整形状:[None,2,4000,256]错误。 输入 train_data.shape() = (100,2,4000) train_labels.shape() =(100,) labels_values = 0 or 1 (two classes) 型号 input = Input(shape=(2,4000)) # shape from train_data embed
train_data.shape() = (100,2,4000)
train_labels.shape() =(100,)
labels_values = 0 or 1 (two classes)
型号
input = Input(shape=(2,4000)) # shape from train_data
embedded = Embedding(2, 256)(input)
lstm = LSTM(1024, return_sequences=True)(embedded) # ERROR
dense = Dense(2, activation='softmax')(lstm)
不幸的是,您设计带有嵌入层的Keras功能模型的整个概念是错误的
return\u sequences=True
则时间维度将传递到下一个维度,这在您的情况下是不需要的from tensorflow.keras.layers import *
from tensorflow.keras.models import *
import numpy as np
train_data = np.random.randint(0,3, (100, 4000))
y_labels = np.random.randint(0,2, (100,))
input_ = Input(shape=(4000)) # shape from train_data
embedded = Embedding(36, 256, input_length = 4000)(input_)
lstm = LSTM(256, return_sequences=False)(embedded) # --> ERROR
dense = Dense(1, activation='softmax')(lstm)
model = Model(input_, dense)
model.summary()
我有时间序列类型的数据,其中train_数据[0]是时间,train_数据[1]是振幅,两者都是x.x形式。我的任务是创建RNN模型。我完全同意布金纳:)在这种情况下怎么办?如果我理解我的数据格式不正确是的,它是。嵌入层不与浮动时间序列数据一起使用,我认为如果不进行巧妙的操作,就不会有确定的向量空间进行映射。那就去掉嵌入层吧。
from tensorflow.keras.layers import *
from tensorflow.keras.models import *
import numpy as np
train_data = np.random.randint(0,3, (100, 4000))
y_labels = np.random.randint(0,2, (100,))
input_ = Input(shape=(4000)) # shape from train_data
embedded = Embedding(36, 256, input_length = 4000)(input_)
lstm = LSTM(256, return_sequences=False)(embedded) # --> ERROR
dense = Dense(1, activation='softmax')(lstm)
model = Model(input_, dense)
model.summary()
Model: "model"
_________________________________________________________________
Layer (type) Output Shape Param #
=================================================================
input_6 (InputLayer) [(None, 4000)] 0
_________________________________________________________________
embedding_5 (Embedding) (None, 4000, 256) 9216
_________________________________________________________________
lstm_5 (LSTM) (None, 256) 525312
_________________________________________________________________
dense (Dense) (None, 1) 257
=================================================================
Total params: 534,785
Trainable params: 534,785
Non-trainable params: 0