FAST ALGORITHMS FOR THE DOMINATING SET PROBLEM ON PERMUTATION GRAPHS

被引:9
|
作者
TSAI, KH [1 ]
HSU, WL [1 ]
机构
[1] ACAD SINICA,INST INFORMAT SCI,TAIPEI 115,TAIWAN
关键词
DOMINATING SET; PERMUTATION GRAPHS; DYNAMIC PROGRAMMING;
D O I
10.1007/BF01190158
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
An O(n log log n) (resp. O(n2 log2 n)) algorithm is presented to solve the minimum cardinality (resp. weight) dominating set problem on permutation graphs, assuming the input is a permutation. The best-known previous algorithm was given by Farber and Keil, where they use dynamic programming to get an O(n2) (resp. O(n3)) algorithm. Our improvement is based on the following three factors: (1) an observation on the order among the intermediate terms in the dynamic programming, (2) a new construction formula for the intermediate terms, and (3) efficient data structures for manipulating these terms.
引用
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页码:601 / 614
页数:14
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