Search Results for author: Kazu Ghalamkari

Found 3 papers, 3 papers with code

Fast Rank-1 NMF for Missing Data with KL Divergence

1 code implementation25 Oct 2021 Kazu Ghalamkari, Mahito Sugiyama

We propose a fast non-gradient-based method of rank-1 non-negative matrix factorization (NMF) for missing data, called A1GM, that minimizes the KL divergence from an input matrix to the reconstructed rank-1 matrix.

Matrix Factorization / Decomposition

Fast Rank Reduction for Non-negative Matrices via Mean Field Theory

1 code implementation9 Jun 2020 Kazu Ghalamkari, Mahito Sugiyama

We propose an efficient matrix rank reduction method for non-negative matrices, whose time complexity is quadratic in the number of rows or columns of a matrix.

Matrix Factorization / Decomposition

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