添加层
Add class
keras.layers.Add(**kwargs)
执行元素级加法操作.
它接受一个相同形状的张量列表作为输入, 并返回一个相同形状的单个张量.
示例:
>>> input_shape = (2, 3, 4)
>>> x1 = np.random.rand(*input_shape)
>>> x2 = np.random.rand(*input_shape)
>>> y = keras.layers.Add()([x1, x2])
在 Keras 模型中的用法:
>>> input1 = keras.layers.Input(shape=(16,))
>>> x1 = keras.layers.Dense(8, activation='relu')(input1)
>>> input2 = keras.layers.Input(shape=(32,))
>>> x2 = keras.layers.Dense(8, activation='relu')(input2)
>>> # 等价于 `added = keras.layers.add([x1, x2])`
>>> added = keras.layers.Add()([x1, x2])
>>> out = keras.layers.Dense(4)(added)
>>> model = keras.models.Model(inputs=[input1, input2], outputs=out)