activity
20132025
most citedHalf-integrality, LP-branching and FPT Algorithms

6 citations · 6 across the 8 of their papers we have counts for

collaborators

9 papers

cs.DS2025

Low-Sensitivity Matching via Sampling from Gibbs Distributions

Yuichi Yoshida, Zihan Zhang

In this work, we study the maximum matching problem from the perspective of sensitivity. The sensitivity of an algorithm on a graph is defined as the maximum Wasserstein di…

cs.LG2025

From Generative to Episodic: Sample-Efficient Replicable Reinforcement Learning

Max Hopkins, Sihan Liu, Christopher Ye +1

The epidemic failure of replicability across empirical science and machine learning has recently motivated the formal study of replicable learning algorithms [Impagliazzo et al. (2…

cs.DS2025

-Approximation Algorithms for Bipartiteness Ratio

Tasuku Soma, Mingquan Ye, Yuichi Yoshida

We propose an -approximation algorithm for the bipartiteness ratio of undirected graphs introduced by Trevisan (SIAM Journal on Computing, vol. 41, no. 6, 2012), where $…

cs.DS2024

Sensitivity Lower Bounds for Approximaiton Algorithms

Noah Fleming, Yuichi Yoshida

Sensitivity measures how much the output of an algorithm changes, in terms of Hamming distance, when part of the input is modified. While approximation algorithms with low sensitiv…

cs.DC2024

Stochastic Distance in Property Testing

Uri Meir, Gregory Schwartzman, Yuichi Yoshida

We introduce a novel concept termed "stochastic distance" for property testing. Diverging from the traditional definition of distance, where a distance implies that there exist…

cs.DS2024

Pointwise Lipschitz Continuous Graph Algorithms

Quanquan C. Liu, Grigoris Velegkas, Yuichi Yoshida +1

In many real-world applications, it is undesirable to drastically change the problem solution after a small perturbation in the input, as unstable outputs can lead to costly transa…

stat.ML2024

Replicability is Asymptotically Free in Multi-armed Bandits

Junpei Komiyama, Shinji Ito, Yuichi Yoshida +1

We consider a replicable stochastic multi-armed bandit algorithm that ensures, with high probability, that the algorithm's sequence of actions is not affected by the randomness inh…

cs.DS2023

Online Algorithms for Spectral Hypergraph Sparsification

Tasuku Soma, Kam Chuen Tung, Yuichi Yoshida

We provide the first online algorithm for spectral hypergraph sparsification. In the online setting, hyperedges with positive weights are arriving in a stream, and upon the arrival…

cs.DS2013★ 6 cited

Half-integrality, LP-branching and FPT Algorithms

Yoichi Iwata, Magnus Wahlström, Yuichi Yoshida

A recent trend in parameterized algorithms is the application of polytope tools (specifically, LP-branching) to FPT algorithms (e.g., Cygan et al., 2011; Narayanaswamy et al., 2012…