| アイテムタイプ |
学術雑誌論文 = Journal Article(1) |
| 公開日 |
2023-08-10 |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| タイトル |
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タイトル |
Approximability of the Distance Independent Set Problem on Regular Graphs and Planar Graphs |
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言語 |
en |
| その他のタイトル |
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その他のタイトル |
Approximability of the distance independent set problem on regular graphs and planar graphs |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 著者 |
Eto, Hiroshi
Ito, Takehiro
Liu, Zhilong
宮野, 英次
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
This paper studies generalized variants of the MAXIMUM INDEPENDENT SET problem, called the MAXIMUM DISTANCE-d INDEPENDENT SET problem (MaxDdIS for short). For an integer d≥2, a distance-d independent set of an unweighted graph G=(V,E) is a subset S⊆V of vertices such that for any pair of vertices u,v∈S, the number of edges in any path between u and v is at least d in G. Given an unweighted graph G, the goal of MaxDdIS is to find a maximum-cardinality distance-d independent set of G. In this paper, we analyze the (in)approximability of the problem on r-regular graphs (r≥3) and planar graphs, as follows: (1) For every fixed integers d≥3 and r≥3, MaxDdIS on r-regular graphs is APX-hard. (2) We design polynomial-time O(rd−1)-approximation and O(rd−2/d)-approximation algorithms for MaxDdIS on r-regular graphs. (3) We sharpen the above O(rd−2/d)-approximation algorithms when restricted to d=r=3, and give a polynomial-time 2-approximation algorithm for MaxD3IS on cubic graphs. (4) Finally, we show that MaxDdIS admits a polynomial-time approximation scheme (PTAS) for planar graphs. |
| 備考 |
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内容記述タイプ |
Other |
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内容記述 |
10th International Conference, COCOA 2016, December 16–18, 2016, Hong Kong, China |
| 書誌情報 |
Lecture Notes in Computer Science
巻 10043,
p. 270-284,
発行日 2016-10-31
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| 出版社 |
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出版者 |
Springer |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1007/978-3-319-48749-6_20 |
| ISBN |
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識別子タイプ |
ISBN |
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関連識別子 |
978-3-319-48748-9 |
| ISBN |
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識別子タイプ |
ISBN |
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関連識別子 |
978-3-319-48749-6 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0302-9743 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1611-3349 |
| 著作権関連情報 |
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権利情報 |
Copyright (c) 2016 Springer International Publishing AG |
| 出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 査読の有無 |
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値 |
yes |
| 研究者情報 |
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URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/233_ja.html |
10347422.pdf (189 KB)
