数学建模社区-数学中国

标题: how to find overall min-cut separating some node pairs, not all node pairs [打印本页]

作者: xyw2013    时间: 2012-12-20 10:59
标题: how to find overall min-cut separating some node pairs, not all node pairs
As we know, now there is efficient algorithms to find the overall min-cut in a directed graph, e.g. Hao and Orlin (1994).0 o% q2 \6 h6 C& I* F  J" J
3 E3 K! E+ s5 u: p1 X+ \
Now my problem is to find an overall min-cut just separating some given node pairs, not all the node pairs. For example, I have an 8-node digraph with capacities on each arc and want to find the overall min-cut separating some node pairs such as 8 and 1, 6 and 3, 7 and 1. The algorithm of Hao and Orlin (1994) cannot solve my problem. * G# C' r5 f- z; l2 [
0 r5 w& i5 ?9 b

; X$ v0 ~: V7 V/ k  y6 t9 X不好意思,我用英文至少为了把问题说的更清楚一点




欢迎光临 数学建模社区-数学中国 (http://www.madio.net/) Powered by Discuz! X2.5