文档地址:https://keras.io/layers/core/#dense
keras.layers.Dense(units, activation=None, use_bias=True, kernel_initializer='glorot_uniform', bias_initializer='zeros', kernel_regularizer=None, bias_regularizer=None, activity_regularizer=None, kernel_constraint=None, bias_constraint=None)
Dense是这样的操作:
例子:
# as first layer in a sequential model: model = Sequential() model.add(Dense(32, input_shape=(16,))) # now the model will take as input arrays of shape (*, 16) # and output arrays of shape (*, 32) # after the first layer, you don't need to specify # the size of the input anymore: model.add(Dense(32))
参数说明:
- units 一个正整数,表示输出的维度
- activation 激活函数,如果不定义,则a(x)=x
- use_bias 这一层是否加bias
- kernel_initializer kernel的初始化器
- bias_initializer 偏置的初始化器
- kernerl_regularizer 用于kernel 的正则化函数
- bias_regularizer 用于偏置的正则化函数
- activity_regularizer 用于本层输出的正则化函数
- kernel_constraint 用于kernel权重的约束函数
- bias_constraint 用于偏置向量的约束函数