論文タイトル

Mixed product-based regularization for sparse matrix factorization in biclustering

執筆者

Jiqiang Wang
Joint Graduate School of Mathematics for Innovation, Kyushu University, Fukuoka, Japan

Kei Hirose
Institute of Mathematics for Industry, Kyushu University, Fukuoka, Japan

採択日

22 March 2026

DOI

https://doi.org/10.1007/s42081-026-00340-6

論文タイトル

Sparse multivariate regression with missing values in both predictors and responses

執筆者

Shuhei Muroya
Joint Graduate School of Mathematics for Innovation, Kyushu University, Fukuoka, Japan

Shota Maeda
Advanced Technology Research Institute, Corporate R&D Group, KYOCERA Corporation, Yokohama, Japan

Kei Hirose
Institute of Mathematics for Industry, Kyushu University, Fukuoka, Japan

採択日

27 October 2025

DOI

https://doi.org/10.1007/s42081-025-00320-2

論文タイトル

Algebraic Approach to Maximum Likelihood Factor Analysis

執筆者

Ryoya Fukasaku
Faculty of Mathematics, Kyushu University, Fukuoka, Japan

Kei Hirose
Institute of Mathematics for Industry, Kyushu University, Fukuoka, Japan

Yutaro Kabata
Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan

Keisuke Teramoto
Department of Mathematics, Yamaguchi University, Yamaguchi, Japan

DOI

https://doi.org/10.1017/psy.2025.10047

論文タイトル

Robust and consistent model evaluation criteria in high-dimensional regression

執筆者

倉田 澄人（九州大学 マス・フォア・インダストリ研究所）
廣瀬 慧（九州大学 マス・フォア・インダストリ研究所）

DOI

https://doi.org/10.1016/j.jspi.2025.106358