Submodular linear programs on forests

被引:15
作者
Faigle, U
Kern, W
机构
[1] Department of Applied Mathematics, University of Twente, 7500 AE Enschede
关键词
greedy algorithm; Monge property; submodular function; ordered set; distributive lattice;
D O I
10.1007/BF02592089
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
A general linear programming model for an order-theoretic analysis of both Edmonds' greedy algorithm for matroids and the NW-corner rule for transportation problems with Monge costs is introduced. This approach includes the model of Queyranne, Spieksma and Tardella (1993) as a special case. We solve the problem by optimal greedy algorithms for rooted forests as underlying structures. Other solvable cases are also discussed.
引用
收藏
页码:195 / 206
页数:12
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