A Solution of Average Time for Pure and Multiset Permutations

被引：1

作者：

Chen, Ray Jinzhu ^{[1
]}

Reschke, Kevin Scott ^{[2
]}

Tong, Muchenxuan ^{[1
]}

机构：

[1] Xiamen Univ, Software Sch, Xiamen 361005, Peoples R China

[2] Stream Sage, Washington, DC 20005 USA

来源：

2009 WASE INTERNATIONAL CONFERENCE ON INFORMATION ENGINEERING, ICIE 2009, VOL I | 2009年

关键词：

Permutation; Average Time; Multiset; Evaluation; GENERATING INTEGER PARTITIONS; ALGORITHMS;

D O I：

10.1109/ICIE.2009.103

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Two efficient techniques for evaluating the performance of candidate multiset permutation algorithms are introduced. We arrive at two formulas for simulating the average running time of multiset permutations for all N-N possible inputs with length N. One formula is for non-lexicographic permutations and the other is for lexicographic permutations. For lexicographic permutations, we use 2 representatives to generate the average time for all N-N possible inputs; and, for non-lexicographic permutations, we use much fewer than 2(N-1) representatives to generate the average time for all N-N possible inputs.

引用

页码：509 / +

页数：3

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