我在mnist数据集上用tensorflow编写了一个wgan,并且它表现良好,但我发现很难在tensorflow中剪裁判别器模型的权重[-0.01,0.01]
。在keras中,我们可以使用权重剪裁来解决。
for l in self.discriminator.layers:
weights = l.get_weights()
weights = [np.clip(w, -self.clip_value, self.clip_value) for w in weights]
l.set_weights(weights)
我发现了一份有关于裁剪鉴别器权重的TensorFlow文档。
tf.contrib.gan.features.clip_discriminator_weights(
optimizer,
model,
weight_clip
)
除此之外,关于如何使用这个函数并没有太多的说明。
#my tf code
def generator(z):
h=tf.nn.relu(layer_mlp(z,"g1",[10,128]))
prob=tf.nn.sigmoid(layer_mlp(h,"g2",[128,784]))
return prob
def discriminator(x):
h=tf.nn.relu(layer_mlp(x,"d1",[784,128]))
logit=layer_mlp(h,"d2",[128,1])
prob=tf.nn.sigmoid(logit)
return prob
G_sample=generator(z)
D_real= discriminator(x)
D_fake= discriminator(G_sample)
D_loss = tf.reduce_mean(D_real) - tf.reduce_mean(D_fake)
G_loss = -tf.reduce_mean(D_fake)
for epoch in epochs:
#training the model