garage.tf.models.mlp_merge_model module¶
MLP Merge Model.
A model composed only of a multi-layer perceptron (MLP), which maps real-valued inputs to real-valued outputs. This model is called an MLP Merge Model because it takes two inputs and concatenates the second input with the layer at a specified index. It can be merged with any layer from the input layer to the last hidden layer.
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class
MLPMergeModel
(output_dim, name='MLPMergeModel', hidden_sizes=(32, 32), concat_layer=-2, hidden_nonlinearity=<function relu>, hidden_w_init=<tensorflow.python.ops.init_ops_v2.GlorotUniform object>, hidden_b_init=<tensorflow.python.ops.init_ops_v2.Zeros object>, output_nonlinearity=None, output_w_init=<tensorflow.python.ops.init_ops_v2.GlorotUniform object>, output_b_init=<tensorflow.python.ops.init_ops_v2.Zeros object>, layer_normalization=False)[source]¶ Bases:
garage.tf.models.model.Model
MLP Merge Model.
Parameters: - output_dim (int) – Dimension of the network output.
- name (str) – Model name, also the variable scope.
- hidden_sizes (list[int]) – Output dimension of dense layer(s). For example, (32, 32) means this MLP consists of two hidden layers, each with 32 hidden units.
- concat_layer (int) – The index of layers at which to concatenate input_var2 with the network. The indexing works like standard python list indexing. Index of 0 refers to the input layer (input_var1) while an index of -1 points to the last hidden layer. Default parameter points to second layer from the end.
- hidden_nonlinearity (callable) – Activation function for intermediate dense layer(s). It should return a tf.Tensor. Set it to None to maintain a linear activation.
- hidden_w_init (callable) – Initializer function for the weight of intermediate dense layer(s). The function should return a tf.Tensor.
- hidden_b_init (callable) – Initializer function for the bias of intermediate dense layer(s). The function should return a tf.Tensor.
- output_nonlinearity (callable) – Activation function for output dense layer. It should return a tf.Tensor. Set it to None to maintain a linear activation.
- output_w_init (callable) – Initializer function for the weight of output dense layer(s). The function should return a tf.Tensor.
- output_b_init (callable) – Initializer function for the bias of output dense layer(s). The function should return a tf.Tensor.
- layer_normalization (bool) – Bool for using layer normalization or not.