SODA
2010
ACM
14 years 1 months ago
2010
ACM
We consider the Asymmetric Traveling Salesman problem for costs satisfying the triangle inequality. We derive a randomized algorithm which delivers a solution within a factor O(lo...
SODA
2010
ACM
14 years 1 months ago
2010
ACM
We consider the following "efficiently decodable" nonadaptive group testing problem. There is an unknown string x {0, 1}n with at most d ones in it. We are allowed to t...
STOC
2001
ACM
14 years 4 months ago
2001
ACM
Recently Rothemund and Winfree 6] have considered the program size complexity of constructing squares by selfassembly. Here, we consider the time complexity of such constructions ...
STOC
2002
ACM
14 years 4 months ago
2002
ACM
We present improved algorithms for maintaining transitive closure and all-pairs shortest paths/distances in a digraph under deletion of edges. For the problem of transitive closur...