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题名:
the complexity and approximability of minimum contamination problems
作者: Li Angsheng ; Tang Linqing
会议文集: Theory and Applications of Models of Computation
会议名称: Theory and Applications of Models of Computation 8th Annual Conference, TAMC 2011
会议日期: 2011
出版日期: 2011
会议地点: Tokyo Japan
关键词: Approximation algorithms ; Computational complexity ; Water cooling systems
出版地: Germany
ISSN: 3029743
ISBN: 978-3-642-20876-8
部门归属: State Key Laboratory of Computer Science, Institute of Software, Chinese Academy of Sciences, P.O. Box 8718, Beijing, 100190 P.R. China
主办者: University of Electro-Communications
英文摘要: In this article, we investigate the complexity and approximability of the Minimum Contamination Problems, which are derived from epidemic spreading areas and have been extensively studied recently. We show that both the Minimum Average Contamination Problem and the Minimum Worst Contamination Problem are NP-hard problems even on restrict cases. For any ε > 0, we give -bicriteria approximation algorithm for the Minimum Average Contamination Problem. Moreover, we show that the Minimum Average Contamination Problem is NP-hard to be approximated within 5/3 ? ε and the Minimum Worst Contamination Problem is NP-hard to be approximated within 2 ? ε , for any ε > 0, giving the first hardness results of approximation of constant ratios to the problems.
内容类型: 会议论文
URI标识: http://ir.iscas.ac.cn/handle/311060/14215
Appears in Collections:计算机科学国家重点实验室 _会议论文

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Recommended Citation:
Li Angsheng,Tang Linqing. the complexity and approximability of minimum contamination problems[C]. 见:Theory and Applications of Models of Computation 8th Annual Conference, TAMC 2011. Tokyo Japan. 2011.
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