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AAAI
2004
13 years 9 months ago
Shortest Path Discovery Problems: A Framework, Algorithms and Experimental Results
In this paper we introduce and study Shortest Path Discovery (SPD) problems, a generalization of shortest path problems: In SPD one is given a directed edgeweighted graph and the ...
Csaba Szepesvári
AAIM
2010
Springer
165views Algorithms» more  AAIM 2010»
13 years 11 months ago
Finding Good Tours for Huge Euclidean TSP Instances by Iterative Backbone Contraction
Abstract. This paper presents an iterative, highly parallelizable approach to find good tours for very large instances of the Euclidian version of the well-known Traveling Salesma...
Christian Ernst, Changxing Dong, Gerold Jäger...
DASFAA
2011
IEEE
206views Database» more  DASFAA 2011»
12 years 11 months ago
A Hybrid Algorithm for Finding Top-k Twig Answers in Probabilistic XML
Abstract. Uncertainty is inherently ubiquitous in data of real applications, and those uncertain data can be naturally represented by the XML. Matching twig pattern against XML dat...
Bo Ning, Chengfei Liu
JCO
2006
150views more  JCO 2006»
13 years 7 months ago
Efficient algorithms for shared backup allocation in networks with partial information
Abstract. We study efficient algorithms for establishing reliable connections with bandwidth guarantees in communication networks. In the normal mode of operation, each connection ...
Yigal Bejerano, Joseph Naor, Alexander Sprintson
FOCS
1999
IEEE
14 years 1 days ago
The Directed Steiner Network Problem is Tractable for a Constant Number of Terminals
We consider the DIRECTED STEINER NETWORK problem, also called the POINT-TO-POINT CONNECTION problem, where given a directed graph G and p pairs {(s1,t1),...,(sp,tp)} of nodes in t...
Jon Feldman, Matthias Ruhl