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WAOA
2005
Springer
177views Algorithms» more  WAOA 2005»
14 years 1 months ago
Approximation and Complexity of k-Splittable Flows
Given a graph with a source and a sink node, the NP–hard maximum k–splittable flow (MkSF) problem is to find a flow of maximum value with a flow decomposition using at most...
Ronald Koch, Martin Skutella, Ines Spenke
CIKM
2009
Springer
14 years 11 days ago
Answering XML queries using materialized views revisited
Answering queries using views is a well-established technique in databases. In this context, two outstanding problems can be formulated. The first one consists in deciding whethe...
Xiaoying Wu, Dimitri Theodoratos, Wendy Hui Wang
FOCS
2004
IEEE
13 years 11 months ago
Approximating Edit Distance Efficiently
Edit distance has been extensively studied for the past several years. Nevertheless, no linear-time algorithm is known to compute the edit distance between two strings, or even to...
Ziv Bar-Yossef, T. S. Jayram, Robert Krauthgamer, ...
CORR
2007
Springer
88views Education» more  CORR 2007»
13 years 7 months ago
Decisive Markov Chains
We consider qualitative and quantitative verification problems for infinite-state Markov chains. We call a Markov chain decisive w.r.t. a given set of target states F if it almos...
Parosh Aziz Abdulla, Noomene Ben Henda, Richard Ma...
IPL
2010
119views more  IPL 2010»
13 years 6 months ago
Note on Max Lin-2 above Average
In the Max Lin-2 problem we are given a system S of m linear equations in n variables over F2 in which Equation j is assigned a positive integral weight wj for each j. We wish to ...
Robert Crowston, Gregory Gutin, Mark Jones