Python Keras形状(无,1)和(无,10)不兼容

Python Keras形状(无,1)和(无,10)不兼容,python,tensorflow,keras,deep-learning,Python,Tensorflow,Keras,Deep Learning,我不能用分类交叉熵来运行我的神经网络,但当我使用二进制时,我的精确度不高。你知道如何解决这个问题吗? from keras import models from keras import layers from keras.datasets import mnist (train_images, train_labels), (test_images, test_labels) = mnist.load_data() train_images = train_images.reshape((

我不能用分类交叉熵来运行我的神经网络,但当我使用二进制时,我的精确度不高。你知道如何解决这个问题吗?

from keras import models
from keras import layers
from keras.datasets import mnist

(train_images, train_labels), (test_images, test_labels) = mnist.load_data()

train_images = train_images.reshape((60000, 28 * 28))
train_images = train_images.astype('float32') / 255

test_images = test_images.reshape((10000, 28 * 28))
test_images = test_images.astype('float32') / 255

network = models.Sequential()
network.add(layers.Dense(512, activation='relu', input_shape=(28 * 28,)))
network.add(layers.Dense(10, activation='softmax'))

network.compile(optimizer='adam',
                loss='categorical_crossentropy',
                metrics=['accuracy'])

network.fit(train_images, train_labels, epochs=5, batch_size=128)

MNIST数据集具有形状(1,)的标签,同时输出10个值。如果要使用分类交叉熵,应使用来解决此差异,如和SparseCategoricalCrossentropy文档中所述

更改损失函数:

from keras import losses
network.compile(optimizer='adam',
                loss=losses.SparseCategoricalCrossentropy(),
                metrics=['accuracy'])

请添加更多信息。你有10个输出神经元。你想把10类分类吗?都是代码。是的,当然。我要10克拉。但问题在于产出。好的,我解决了问题。再次感谢你。是的,我也可以这样使用稀疏分类交叉熵:
loss='sparse\u category\u crossentropy',