networks.py 文件源码

def simple_critic(env):
    """Build a simple critic network"""
    observation = env.state
    action = env.action
    # Concatenate the inputs for the critic
    inputs = concatenate([observation, action])
    x = Dense(1)(inputs)
    x = Activation('linear')(x)

    # Final model
    return Model(inputs=[observation, action], outputs=[x])