Sciweavers

626 search results - page 39 / 126
» On Approximability of Minimum Bisection Problem
Sort
View
SODA
2003
ACM
121views Algorithms» more  SODA 2003»
13 years 9 months ago
Improved results for directed multicut
We give a simple algorithm for the MINIMUM DIRECTED MULTICUT problem, and show that it gives an Ç´ÔÒµapproximation. This improves on the previous approximation guarantee of ...
Anupam Gupta
APPROX
2004
Springer
136views Algorithms» more  APPROX 2004»
14 years 1 months ago
On the Crossing Spanning Tree Problem
Given an undirected n-node graph and a set C of m cuts, the minimum crossing tree is a spanning tree which minimizes the maximum crossing of any cut in C, where the crossing of a c...
Vittorio Bilò, Vineet Goyal, R. Ravi, Mohit...
APPROX
2004
Springer
180views Algorithms» more  APPROX 2004»
14 years 1 months ago
A 3/4-Approximation Algorithm for Maximum ATSP with Weights Zero and One
We present a polynomial time 3/4-approximation algorithm for the maximum asymmetric TSP with weights zero and one. As applications, we get a 5/4-approximation algorithm for the (mi...
Markus Bläser
STOC
1999
ACM
132views Algorithms» more  STOC 1999»
14 years 24 days ago
A Polynomial Combinatorial Algorithm for Generalized Minimum Cost Flow
We propose the first combinatorial solution to one of the most classic problems in combinatorial optimization: the generalized minimum cost flow problem (flow with losses and g...
Kevin D. Wayne
STACS
2004
Springer
14 years 1 months ago
On Minimum Circular Arrangement
Motivated by a scheduling problem encountered in multicast environments, we study a vertex labelling problem, called Directed Circular Arrangement (DCA), that requires one to fin...
Murali K. Ganapathy, Sachin Lodha