我正在训练一个图像分类器来区分猫和狗。在
以下是我的相关代码:
FINAL_ACTIVATION = "softmax"
OPTIMIZER = keras.optimizers.Adamax()
STRIDES = (2, 2)
DROPOUT = 0.5
model = Sequential()
model.add(Conv2D(32, (3, 3), input_shape = INPUT_SHAPE))
model.add(keras.layers.ELU())
model.add(MaxPooling2D(pool_size = (2, 2), strides = STRIDES))
model.add(Conv2D(64, (3, 3)))
model.add(keras.layers.ELU())
model.add(MaxPooling2D(pool_size = (2, 2), strides = STRIDES))
model.add(Conv2D(128, (3, 3)))
model.add(keras.layers.ELU())
model.add(MaxPooling2D(pool_size = (2, 2), strides = STRIDES))
model.add(Conv2D(128, (3, 3)))
model.add(keras.layers.ELU())
model.add(MaxPooling2D(pool_size = (2, 2), strides = STRIDES))
model.add(Flatten())
model.add(Dense(100))
model.add(keras.layers.ELU())
model.add(Dropout(DROPOUT))
model.add(Dense(50))
model.add(keras.layers.ELU())
model.add(Dropout(DROPOUT))
model.add(Dense(2))
model.add(Activation(FINAL_ACTIVATION))
model.compile(
loss="categorical_crossentropy",
optimizer = OPTIMIZER,
metrics = ["accuracy"]
)
train_datagen = ImageDataGenerator(
rescale = 1./255,
shear_range = 0.2,
zoom_range = 0.2,
horizontal_flip = True
)
train_generator = train_datagen.flow(
x_train,
y_train,
batch_size = BATCH_SIZE
)
model.summary()
model.fit_generator(
train_generator,
steps_per_epoch = x_train.shape[0] // BATCH_SIZE,
epochs = EPOCHS
)
由于大量的培训文件,没有测试集。但是,当我尝试训练这个网络时,我得到了错误“ValueError:error when checking target:error when checking target:expected activation_1 to have shape(2,),but get array with shape(1,).”我在这里做错了什么?在
卷积神经网络对我来说还是有点不可思议的,所以我可能在这里犯了一些初学者的错误。我想我可能是。在
这是我的模型:
^{pr2}$
作业甚至还没有开始执行。你的纱线中没有免费的Conatiner,因此工作无法开始
这不是错误,而是正常的纱线应用状态转换
相关问题 更多 >
编程相关推荐