2026

Journal

• "Hardness of Approximate Vertex Ranking by Betweenness Centrality in the CONGEST Model"
  Yuki Kawashima, Naoki Kitamura, Taisuke Izumi, Toshimitsu Masuzawa
  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E109.A, 7, 1261-1271 (2026).

  • DOI: 10.1587/transfun.2025EAP1216

Domestic Conference and Workshop (mostly written in Japanese, and non-reviewed)

• "Constant-Factor Optimal 2-Resilient Local Failover Routing on Directed Graphs"
  Kaito Harada, Naoki Kitamura, Yuki Kawashima〇, Yuya Terashima
  情報科学ワークショップ (2026).

Award

• "プレゼンテーション賞"
  Yuki Kawashima
  情報科学ワークショップ (2026).

2025

International Conference

• "Brief Announcement: Hardness of Approximate Vertex Ranking by Betweenness Centrality in the CONGEST Model"
  Yuki Kawashima, Naoki Kitamura, Taisuke Izumi, Toshimitsu Masuzawa
  Structural Information and Communication Complexity (SIROCCO) , 431-436 (2025).

  • DOI: 10.1007/978-3-031-91736-3_27

Domestic Conference and Workshop (mostly written in Japanese, and non-reviewed)

• "Improved Algorithms for Local Failover Routing on Directed Graphs"
  Yuki Kawashima, Naoki Kitamura, Taisuke Izumi
  情報科学ワークショップ (2025).

2023

Domestic Conference and Workshop (mostly written in Japanese, and non-reviewed)

• "CONGESTモデルにおける媒介中心性のランキング計算時間下界"
  川嶋佑樹,泉泰介,増澤利光,北村直暉
  情報科学ワークショップ (2023).
• "CONGESTモデルにおける媒介中心性のランキング計算時間下界"
  川嶋 佑樹, 北村 直暉, 泉 泰介, 増澤 利光
  LAシンポジウム (2023).