Pursuit of the Cluster Structure of Network Lasso: Recovery Condition and Non-convex Extension. - Shotaro Yagishita; Jun-ya Gotoh (J. Mach. Learn. Res., 2024)

An acceleration of proximal diagonal Newton method. - Shotaro Yagishita; Shummin Nakayama (JSIAM Lett., 2024)

Investment and reinsurance strategies via minimizing Gerber-Shiu-like penalty function. - Yuta Otsuki; Shotaro Yagishita (JSIAM Lett., 2025)