Kanae Yoshiwatari

dblp:321/3897 · DBLP profile ↗
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6ranked-venue papers
1as first author
6since 2021 · last 2026
0000-0001-5259-7644ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Theory of computation · 4 · 1 first-author · 4 since 2021Artificial intelligence and machine learning · 1 · 1 since 2021Applied, interdisciplinary, general and emerging computing · 1 · 1 since 2021
YearPublicationVenuePosition
2026 Faster winner determination algorithms for (Colored) Arc Kayles
Tesshu Hanaka, Hironori Kiya, Michael Lampis, Hirotaka Ono 0001, Kanae Yoshiwatari
J. Comput. Syst. Sci.5
2025 Colored Node Kayles: Algorithms and Computational Complexity
Tesshu Hanaka, Hirotaka Ono 0001, Kanae Yoshiwatari
PRIMA3
2024 Parameterized Vertex Integrity Revisited
abstract
Vertex integrity is a graph parameter that measures the connectivity of a graph. Informally, its meaning is that a graph has small vertex integrity if it has a small separator whose removal disconnects the graph into connected components which are themselves also small. Graphs with low vertex integrity are extremely structured; this renders many hard problems tractable and has recently attracted interest in this notion from the parameterized complexity community. In this paper we revisit the NP-complete problem of computing the vertex integrity of a given graph from the point of view of structural parameterizations. We present a number of new results, which also answer some recently posed open questions from the literature. Specifically: We show that unweighted vertex integrity is W[1]-hard parameterized by treedepth; we show that the problem remains W[1]-hard if we parameterize by feedback edge set size (via a reduction from a Bin Packing variant which may be of independent interest); and complementing this we show that the problem is FPT by max-leaf number. Furthermore, for weighted vertex integrity, we show that the problem admits a single-exponential FPT algorithm parameterized by vertex cover or by modular width, the latter result improving upon a previous algorithm which required weights to be polynomially bounded.
Tesshu Hanaka, Michael Lampis, Manolis Vasilakis, Kanae Yoshiwatari
MFCS4
2024 Faster Winner Determination Algorithms for (Colored) Arc Kayles
Tesshu Hanaka, Hironori Kiya, Michael Lampis, Hirotaka Ono 0001, Kanae Yoshiwatari
SOFSEM5
2024 Winner Determination Algorithms for Graph Games with Matching Structures
Tesshu Hanaka, Hironori Kiya, Hirotaka Ono 0001, Kanae Yoshiwatari
Algorithmica4
2022 Winner Determination Algorithms for Graph Games with Matching Structures
Kanae Yoshiwatari, Hironori Kiya, Tesshu Hanaka, Hirotaka Ono 0001
IWOCA1