Online coloring of hypergraphs

被引：3
|
作者：
Halldorsson, Magnus M. [1 ]
机构：
[1] Reykjavik Univ, Sch Comp Sci, IS-101 Reykjavik, Iceland
来源：
INFORMATION PROCESSING LETTERS | 2010年 / 110卷 / 10期
关键词：
Online algorithms; Hypergraphs; Graph coloring;
D O I：
10.1016/j.ipl.2010.03.001
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We give a tight bound on randomized online coloring of hypergraphs. The bound holds even if the algorithm knows the hypergraph in advance (but not the ordering in which it is presented). More specifically, we show that for any n and k, there is a 2-colorable k-uniform hypergraph on n vertices for which any randomized online coloring uses Omega(n/k) colors in expectation. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：370 / 372
页数：3
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