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ICALP
2005
Springer
15 years 10 months ago
Approximation Algorithms for the Max-coloring Problem
Given a graph G = (V, E) and positive integral vertex weights w : V → N, the max-coloring problem seeks to find a proper vertex coloring of G whose color classes C1, C2, . . . ,...
Sriram V. Pemmaraju, Rajiv Raman
132
Voted
ICALP
2005
Springer
15 years 10 months ago
A Better Approximation Ratio for the Vertex Cover Problem
We reduce the approximation factor for Vertex Cover to 2 − Θ( 1√ log n ) (instead of the previous 2 − Θ(log log n log n ), obtained by Bar-Yehuda and Even [2], and by Moni...
George Karakostas
ICALP
2005
Springer
15 years 10 months ago
About Hoare Logics for Higher-Order Store
Abstract. We present a Hoare logic for a simple imperative whilelanguage with stored commands, ie. stored parameterless procedures. Stores that may contain procedures are called hi...
Bernhard Reus, Thomas Streicher
141
Voted
ICALP
2005
Springer
15 years 10 months ago
Approximation Algorithms for Euclidean Group TSP
In the Euclidean group Traveling Salesman Problem (TSP), we are given a set of points P in the plane and a set of m connected regions, each containing at least one point of P. We w...
Khaled M. Elbassioni, Aleksei V. Fishkin, Nabil H....
162
Voted
ICALP
2005
Springer
15 years 10 months ago
Recursive Markov Decision Processes and Recursive Stochastic Games
We introduce Recursive Markov Decision Processes (RMDPs) and Recursive Simple Stochastic Games (RSSGs), which are classes of (finitely presented) countable-state MDPs and zero-su...
Kousha Etessami, Mihalis Yannakakis
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