fv_to_t3

t3toolbox.backend.fv_conversions.fv_to_t3(index, frame, variations)

def fv_to_t3(
        index: typ.Tuple[
            bool, # If True, use TT coordinate. If False, use Tucker coordinate
            int, # index of coordinate
        ],
        frame: typ.Union[
            typ.Tuple[
                typ.Tuple[NDArray, ...],  # up_tucker_cores
                typ.Tuple[NDArray, ...],  # down_tucker_cores
                typ.Tuple[NDArray, ...],  # left_tt_cores
                typ.Tuple[NDArray, ...],  # right_tucker_cores
            ], # ragged
            typ.Tuple[
                NDArray,  # up_tucker_supercore
                NDArray,  # down_tucker_supercore
                NDArray,  # left_tt_supercore
                NDArray,  # right_tucker_supercore
            ], # uniform
        ],
        variations: typ.Union[
            typ.Tuple[
                typ.Tuple[NDArray, ...],  # tucker_variations
                typ.Tuple[NDArray, ...],  # tt_variations
            ], # ragged
            typ.Tuple[
                NDArray,  # tucker_variations_supercore
                NDArray,  # tt_variations_supercore
            ], # uniform
        ],
) -> typ.Union[
    typ.Tuple[
        typ.Tuple[NDArray,...], # tucker_cores
        typ.Tuple[NDArray,...], # tt_cores
    ], # ragged
    typ.Tuple[
        NDArray, # tucker_supercore
        NDArray, # tt_supercore
    ], # uniform
]:

Convert ith frame-variation representation to TuckerTensorTrain.

Parameters:

• index (t3toolbox.backend.common.typ.Tuple[bool, int])

• frame (t3toolbox.backend.common.typ.Union[t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis], t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis], t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis], t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis]], t3toolbox.backend.common.typ.Tuple[NDArray, NDArray, NDArray, NDArray]])

• variations (t3toolbox.backend.common.typ.Union[t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis], t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis]], t3toolbox.backend.common.typ.Tuple[NDArray, NDArray]])

Return type:

t3toolbox.backend.common.typ.Union[t3toolbox.backend.common.typ.Tuple[t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis], t3toolbox.backend.common.typ.Tuple[NDArray, Ellipsis]], t3toolbox.backend.common.typ.Tuple[NDArray, NDArray]]