MultiIndexSlicingBlock

class maze.perception.blocks.general.multi_index_slicing.MultiIndexSlicingBlock(*args: Any, **kwargs: Any)

A multi-index-slicing block. This can be used rather than the short hand tensor[…,[a,b]] where [a,b] is the list given as selection indices.

Parameters:

• in_keys – One key identifying the input tensors.

• out_keys – One key identifying the output tensors.

• in_shapes – List of input shapes.

• select_dim – The dimension to slice from.

• select_idxs – The index or indices to select.

forward(block_input: Dict[str, torch.Tensor]) → Dict[str, torch.Tensor]

(overrides PerceptionBlock)

Forward pass, slicing the input tensor as defined by the selection_dim and select_idxs.

param block_input:

The block’s input dictionary.

return:

The block’s output dictionary.