Sublinear Estimation of Weighted Matchings in Dynamic Data Streams
Sublinear Estimation of Weighted Matchings in Dynamic Data Streams
复制标题
动态数据流中加权匹配的次线性估计
DOI:
10.1007/978-3-662-48350-3_23
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Chris Schwiegelshohn
中科院分区:
文献类型:
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作者:
Marc Bury;Chris Schwiegelshohn
This paper presents an algorithm for estimating the weight of a maximum weighted matching by augmenting any estimation routine for the size of an unweighted matching. The algorithm is implementable in any streaming model including dynamic graph streams. We also give the first constant estimation for the maximum matching size in a dynamic graph stream for planar graphs (or any graph with bounded arboricity) using \(\tilde{O}(n^{4/5})\) space which also extends to weighted matching. Using previous results by Kapralov, Khanna, and Sudan (2014) we obtain a polylog(n) approximation for general graphs using polylog(n) space in random order streams, respectively. In addition, we give a space lower bound of Ω(n1 − e) for any randomized algorithm estimating the size of a maximum matching up to a 1 + O(e) factor for adversarial streams.
DOI:
10.1145/3230819
发表时间:
2015
期刊:
ACM Transactions on Algorithms (TALG)
影响因子:
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作者:
Hossein Esfandiari;Mohammad Taghi Hajiaghayi;Vahid Liaghat;Morteza Monemizadeh;Krzysztof Onak
通讯作者:
Krzysztof Onak