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» Two Algorithms for the Minimum Enclosing Ball Problem
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SIGECOM
2006
ACM
125views ECommerce» more  SIGECOM 2006»
15 years 12 months ago
Minimum payments that reward honest reputation feedback
Online reputation mechanisms need honest feedback to function effectively. Self interested agents report the truth only when explicit rewards offset the cost of reporting and th...
Radu Jurca, Boi Faltings
EOR
2008
106views more  EOR 2008»
15 years 6 months ago
Convergent Lagrangian heuristics for nonlinear minimum cost network flows
We consider the separable nonlinear and strictly convex single-commodity network flow problem (SSCNFP). We develop a computational scheme for generating a primal feasible solution...
Torbjörn Larsson, Johan Marklund, Caroline Ol...
APPROX
2004
Springer
180views Algorithms» more  APPROX 2004»
15 years 11 months ago
A 3/4-Approximation Algorithm for Maximum ATSP with Weights Zero and One
We present a polynomial time 3/4-approximation algorithm for the maximum asymmetric TSP with weights zero and one. As applications, we get a 5/4-approximation algorithm for the (mi...
Markus Bläser
ISAAC
2004
Springer
88views Algorithms» more  ISAAC 2004»
15 years 11 months ago
On the Range Maximum-Sum Segment Query Problem
The range minimum query problem, RMQ for short, is to preprocess a sequence of real numbers A[1 . . . n] for subsequent queries of the form: “Given indices i, j, what is the ind...
Kuan-Yu Chen, Kun-Mao Chao
BIRTHDAY
2009
Springer
16 years 21 days ago
Covering a Tree by a Forest
Consider a tree T and a forest F. The paper discusses the following new problems: The Forest vertex-cover problem (FVC): cover the vertices of T by a minimum number of copies of tr...
Fanica Gavril, Alon Itai