30 search results - page 5 / 6 » Comparison of the Exact and Approximate Algorithms in the Ra... |
CORR
2008
Springer
13 years 7 months ago
2008
Springer
We study the worst-case communication complexity of distributed algorithms computing a path problem based on stationary distributions of random walks in a network G with the caveat...
SODA
1992
ACM
13 years 8 months ago
1992
ACM
We present a general approximation technique for a large class of graph problems. Our technique mostly applies to problems of covering, at minimum cost, the vertices of a graph wit...
STOC
2004
ACM
14 years 8 months ago
2004
ACM
We prove the following inequality: for every positive integer n and every collection X1, . . . , Xn of nonnegative independent random variables that each has expectation 1, the pr...
ALGORITHMICA
2008
13 years 7 months ago
2008
Given a graph with edges colored Red and Blue, we wish to sample and approximately count the number of perfect matchings with exactly k Red edges. We study a Markov chain on the sp...
STACS
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. We consider variations of two well-known centrality measures, betweenness and closeness, with a different model of information spread. Rather than along shortest paths o...