Adaptive Localized Cayley Parametrization Technique for Smooth optimization over the Stiefel Manifold. - Keita Kume; Isao Yamada (EUSIPCO, 2019)

A Nesterov-type Acceleration with Adaptive Localized Cayley Parametrization for Optimization over the Stiefel Manifold. - Keita Kume; Isao Yamada (EUSIPCO, 2020)

A Global Cayley Parametrization of Stiefel Manifold for Direct Utilization of Optimization Mechanisms Over Vector Spaces. - Keita Kume; Isao Yamada (ICASSP, 2021)

A Discrete-Valued Signal Estimation by Nonconvex Enhancement of SOAV with cLiGME Model. - Satoshi Shoji; Wataru Yata; Keita Kume; Isao Yamada (APSIPA, 2024)

A Variable Smoothing for Nonconvexly Constrained Nonsmooth Optimization with Application to Sparse Spectral Clustering. - Keita Kume; Isao Yamada (ICASSP, 2024)

Adaptive Localized Cayley Parametrization for Optimization Over Stiefel Manifold and Its Convergence Rate Analysis. - Keita Kume; Isao Yamada (IEEE Access, 2024)

A Proximal Variable Smoothing for Nonsmooth Minimization Involving Weakly Convex Composite with MIMO Application. - Keita Kume; Isao Yamada (ICASSP, 2025)

Hierarchical Nash Equilibrium over Variational Equilibria via Fixed-point Set Expression of Quasi-nonexpansive Operator. - Shota Matsuo; Keita Kume; Isao Yamada (ICASSP, 2025)