Private functions

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GCPDecompositions.GCPAlgorithms._gcp — Function

_gcp(X, r, loss, constraints, algorithm)

Internal function to compute an approximate rank-r CP decomposition of the tensor X with respect to the loss function loss and the constraints constraints using the algorithm algorithm, returning a CPD object.

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GCPDecompositions.TensorKernels._checked_khatrirao_dims — Function

_checked_khatrirao_dims(A1, A2, ...)

Check that A1, A2, etc. have compatible dimensions for the Khatri-Rao product. If so, return a tuple of the number of rows and the shared number of columns. If not, throw an error.

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GCPDecompositions.TensorKernels._checked_mttkrp_dims — Function

_checked_mttkrp_dims(X, (U1, U2, ..., UN), n)

Check that X and U have compatible dimensions for the mode-n MTTKRP. If so, return a tuple of the number of rows and the shared number of columns for the Khatri-Rao product. If not, throw an error.

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GCPDecompositions.TensorKernels._checked_mttkrps_dims — Function

_checked_mttkrps_dims(X, (U1, U2, ..., UN))

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