Searching for an evader in an unknown graph by an optimal number of searchers

Takahiro Yakami, Yukiko Yamauchi, Shuji Kijima, Masafumi Yamashita

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The graph search problem is the problem of searching a graph G for a mobile evader by mobile searchers. The edge search is an offline and centralized version, and es(G) denotes the number of searchers necessary and sufficient to edge search G. An online and distributed setting assumes a port numbering of G, a distinct homebase and a whiteboard in each node. Search algorithms typically respect the monotone and connected search strategy to protect the information on whiteboards; however, Ω(n/ log n es(G)) searchers are necessary even for trees, where n is the order of G. We investigate the problem under a new online and distributed setting: We assume that searchers can exchange information wherever they meet, instead of assuming a port numbering, a homebase and whiteboards. Under this setting, we propose a search algorithm for es(G) searchers, which is optimal.

本文言語英語
ホスト出版物のタイトルStabilization, Safety, and Security of Distributed Systems - 18th International Symposium, SSS 2016, Proceedings
編集者Franck Petit, Borzoo Bonakdarpour
出版社Springer Verlag
ページ399-414
ページ数16
ISBN(印刷版)9783319492582
DOI
出版ステータス出版済み - 1 1 2016
イベント18th International Symposium on Stabilization, Safety, and Security of Distributed Systems, SSS 2016 - Lyon, フランス
継続期間: 11 7 201611 10 2016

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
10083 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他18th International Symposium on Stabilization, Safety, and Security of Distributed Systems, SSS 2016
国/地域フランス
CityLyon
Period11/7/1611/10/16

All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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