garage.torch.modules.gaussian_mlp_module module¶
GaussianMLPModule.
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class
GaussianMLPBaseModule
(input_dim, output_dim, hidden_sizes=(32, 32), hidden_nonlinearity=<sphinx.ext.autodoc.importer._MockObject object>, hidden_w_init=<sphinx.ext.autodoc.importer._MockObject object>, hidden_b_init=<sphinx.ext.autodoc.importer._MockObject object>, output_nonlinearity=None, output_w_init=<sphinx.ext.autodoc.importer._MockObject object>, output_b_init=<sphinx.ext.autodoc.importer._MockObject object>, learn_std=True, init_std=1.0, min_std=1e-06, max_std=None, std_hidden_sizes=(32, 32), std_hidden_nonlinearity=<sphinx.ext.autodoc.importer._MockObject object>, std_hidden_w_init=<sphinx.ext.autodoc.importer._MockObject object>, std_hidden_b_init=<sphinx.ext.autodoc.importer._MockObject object>, std_output_nonlinearity=None, std_output_w_init=<sphinx.ext.autodoc.importer._MockObject object>, std_parameterization='exp', layer_normalization=False)[source]¶ Bases:
sphinx.ext.autodoc.importer._MockObject
GaussianMLPModel.
Parameters: - input_dim (int) – Input dimension of the model.
- output_dim (int) – Output dimension of the model.
- hidden_sizes (list[int]) – Output dimension of dense layer(s) for the MLP for mean. For example, (32, 32) means the MLP consists of two hidden layers, each with 32 hidden units.
- hidden_nonlinearity (callable) – Activation function for intermediate dense layer(s). It should return a torch.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 torch.Tensor.
- hidden_b_init (callable) – Initializer function for the bias of intermediate dense layer(s). The function should return a torch.Tensor.
- output_nonlinearity (callable) – Activation function for output dense layer. It should return a torch.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 torch.Tensor.
- output_b_init (callable) – Initializer function for the bias of output dense layer(s). The function should return a torch.Tensor.
- learn_std (bool) – Is std trainable.
- init_std (float) – Initial value for std. (plain value - not log or exponentiated).
- adaptive_std (bool) – Is std a neural network. If False, it will be a parameter.
- std_share_network (bool) – Boolean for whether mean and std share the same network.
- std_hidden_sizes (list[int]) – Output dimension of dense layer(s) for the MLP for std. For example, (32, 32) means the MLP consists of two hidden layers, each with 32 hidden units.
- min_std (float) – If not None, the std is at least the value of min_std, to avoid numerical issues (plain value - not log or exponentiated).
- max_std (float) – If not None, the std is at most the value of max_std, to avoid numerical issues (plain value - not log or exponentiated).
- std_hidden_nonlinearity – Nonlinearity for each hidden layer in the std network.
- std_output_nonlinearity (callable) – Activation function for output dense layer in the std network. It should return a torch.Tensor. Set it to None to maintain a linear activation.
- std_output_w_init (callable) – Initializer function for the weight of output dense layer(s) in the std network.
- std_parametrization (str) –
How the std should be parametrized. There are two options: - exp: the logarithm of the std will be stored, and applied a
exponential transformation- softplus: the std will be computed as log(1+exp(x))
- layer_normalization (bool) – Bool for using layer normalization or not.
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class
GaussianMLPIndependentStdModule
(input_dim, output_dim, hidden_sizes=(32, 32), hidden_nonlinearity=<sphinx.ext.autodoc.importer._MockObject object>, hidden_w_init=<sphinx.ext.autodoc.importer._MockObject object>, hidden_b_init=<sphinx.ext.autodoc.importer._MockObject object>, output_nonlinearity=None, output_w_init=<sphinx.ext.autodoc.importer._MockObject object>, output_b_init=<sphinx.ext.autodoc.importer._MockObject object>, learn_std=True, init_std=1.0, min_std=1e-06, max_std=None, std_hidden_sizes=(32, 32), std_hidden_nonlinearity=<sphinx.ext.autodoc.importer._MockObject object>, std_hidden_w_init=<sphinx.ext.autodoc.importer._MockObject object>, std_hidden_b_init=<sphinx.ext.autodoc.importer._MockObject object>, std_output_nonlinearity=None, std_output_w_init=<sphinx.ext.autodoc.importer._MockObject object>, std_parameterization='exp', layer_normalization=False)[source]¶ Bases:
garage.torch.modules.gaussian_mlp_module.GaussianMLPBaseModule
GaussianMLPModule which has two different mean and std network.
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class
GaussianMLPModule
(input_dim, output_dim, hidden_sizes=(32, 32), hidden_nonlinearity=<sphinx.ext.autodoc.importer._MockObject object>, hidden_w_init=<sphinx.ext.autodoc.importer._MockObject object>, hidden_b_init=<sphinx.ext.autodoc.importer._MockObject object>, output_nonlinearity=None, output_w_init=<sphinx.ext.autodoc.importer._MockObject object>, output_b_init=<sphinx.ext.autodoc.importer._MockObject object>, learn_std=True, init_std=1.0, min_std=1e-06, max_std=None, std_parameterization='exp', layer_normalization=False)[source]¶ Bases:
garage.torch.modules.gaussian_mlp_module.GaussianMLPBaseModule
GaussianMLPModule that mean and std share the same network.
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class
GaussianMLPTwoHeadedModule
(input_dim, output_dim, hidden_sizes=(32, 32), hidden_nonlinearity=<sphinx.ext.autodoc.importer._MockObject object>, hidden_w_init=<sphinx.ext.autodoc.importer._MockObject object>, hidden_b_init=<sphinx.ext.autodoc.importer._MockObject object>, output_nonlinearity=None, output_w_init=<sphinx.ext.autodoc.importer._MockObject object>, output_b_init=<sphinx.ext.autodoc.importer._MockObject object>, learn_std=True, init_std=1.0, min_std=1e-06, max_std=None, std_parameterization='exp', layer_normalization=False)[source]¶ Bases:
garage.torch.modules.gaussian_mlp_module.GaussianMLPBaseModule
GaussianMLPModule which has only one mean network.