44 citations · 126 across the 16 of their papers we have counts for
4 papers · 1 filter
Generalized Left-Localized Cayley Parametrization for Optimization with Orthogonality Constraints
Kieta Kume, Isao Yamada
We present a reformulation of optimization problems over the Stiefel manifold by using a Cayley-type transform, named the generalized left-localized Cayley transform, for the Stief…
A Unified Framework for Solving a General Class of Nonconvexly Regularized Convex Models
Yi Zhang, Isao Yamada
Recently, several nonconvex sparse regularizers which can preserve the convexity of the cost function have received increasing attention. This paper proposes a general class of suc…
Adaptive Localized Cayley Parametrization for Optimization over Stiefel Manifold
Keita Kume, Isao Yamada
We present an adaptive parametrization strategy for optimization problems over the Stiefel manifold by using generalized Cayley transforms to utilize powerful Euclidean optimizatio…
An Inexact Proximal Linearized DC Algorithm with Provably Terminating Inner Loop
Yi Zhang, Isao Yamada
Standard approaches to difference-of-convex (DC) programs require exact solution to a convex subproblem at each iteration, which generally requires noiseless computation and infini…