Information and Mathematical Engineering Laboratory,
Graduate School of
Natural Science and Technology,
Okayama University

## Norikazu Takahashi

Professor, Doctor of Engineering

### Recent Works

- Masaaki Takeuchi and Norikazu Takahashi, “A distributed algorithm for solving Sandberg-Willson equations,” to be presented at 2018 International Symposium on Nonlinear Theory and Its Applications (NOLTA2018).

- Norikazu Takahashi, Jiro Katayama, Masato Seki and Jun'ichi Takeuchi, “A unified global convergence analysis of multiplicative update rules for nonnegative matrix factorization,” to appear in Computational Optimization and Applications.

- Akihiro Koso and Norikazu Takahashi, “Derivation of multiplicative update rules for nonnegative matrix factorization with regularization terms,” Proceedings of 2017 International Symposium on Nonlinear Theory and Its Applications (NOLTA2017), pp.322-325, December 2017.

- Tomohisa Urakami and Norikazu Takahashi, “Analysis of a pseudo-decentralized discrete-time algorithm for estimating algebraic connectivity of multiagent networks,” Proceedings of 2017 International Symposium on Nonlinear Theory and Its Applications (NOLTA2017), pp.427-430, December 2017.

- Takumi Kimura and Norikazu Takahashi, “Gauss-Seidel HALS algorithm for nonnegative matrix factorization with sparseness and smoothness constraints,” IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol.E100-A, no.12, pp.2925-2935, December 2017.

- Satoshi Nakatsu and Norikazu Takahashi, “A novel Newton-type algorithm for nonnegative matrix factorization with alpha-divergence,” Proceedings of The 24th International Conference on Neural Information Processing (ICONIP2017), pp.335-344, 2017 (Lecture Notes in Computer Science, vol.10634, pp.335-344, 2017)