Author

Yuichi Yoshida

h-index 32 View on Semantic Scholar

We have 2 of 163 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Sep 2026

An Exponential Value-Oracle Lower Bound for \({k}\)-Submodular Function Minimization

Abstract. We give a simple family of [Formula: see text]-submodular functions for every fixed [Formula: see text], showing that minimization in the value-oracle model requires exponentially many oracle queries.

Yuichi Yoshida · SIAM Journal on Discrete Mat... · 0 citations

#graph neural networks Preprint Aug 2026

Nonlinear Laplacians Improve Signed-Directed Graph Learning

This work introduces a non-linear Laplacian operator specific to signed and directed networks (NLSD) and proposes an efficient spectral GNN framework (NLSD-GNN), which not only integrates signed and directional data effectively but also achieves superior performance across diverse datasets.

Alipanah Parviz, Yuichi Yoshida · 3 citations