HALSacc: Accelerated hierarchical alternating least squares NMF. For a...

In hNMF: Hierarchical Non-Negative Matrix Factorization

Description

Accelerated hierarchical alternating least squares NMF. For a reference to the method, see N. Gillis, Nonnegative matrix factorization: complexity, algorithms and applications [Section 4.2, Algo. 6], PhD thesis, Université catholique de Louvain, February 2011.

Usage

HALSacc(X, nmfMod, alpha = 1, maxiter = 1000, checkDivergence = FALSE)

Arguments

X	Input data matrix, each column represents one observation and the rows correspond to the different features
nmfMod	Valid NMF model, containing initialized factor matrices (in accordance with the NMF package definition)
alpha	Nonnegative parameter of the accelerated method
maxiter	Maximum number of iterations
checkDivergence	currently not in use, to be implemented

Value

Resulting NMF model (in accordance with the NMF package definition)

Author(s)

nsauwen

hNMF documentation built on Jan. 8, 2021, 5:42 p.m.