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CORR
2007
Springer
131views Education» more  CORR 2007»
15 years 4 months ago
Approximation Algorithms for Multiprocessor Scheduling under Uncertainty
Motivated by applications in grid computing and projects management, we study multiprocessor scheduling in scenarios where there is uncertainty in the successful execution of jobs...
Guolong Lin, Rajmohan Rajaraman
COMPGEOM
2009
ACM
15 years 11 months ago
Near-linear approximation algorithms for geometric hitting sets
Given a set system (X, R), the hitting set problem is to find a smallest-cardinality subset H ⊆ X, with the property that each range R ∈ R has a non-empty intersection with H...
Pankaj K. Agarwal, Esther Ezra, Micha Sharir
CORR
2010
Springer
107views Education» more  CORR 2010»
15 years 3 months ago
Maximum Betweenness Centrality: Approximability and Tractable Cases
The Maximum Betweenness Centrality problem (MBC) can be defined as follows. Given a graph find a k-element node set C that maximizes the probability of detecting communication be...
Martin Fink, Joachim Spoerhase
CORR
2011
Springer
220views Education» more  CORR 2011»
14 years 11 months ago
On a linear programming approach to the discrete Willmore boundary value problem and generalizations
We consider the problem of finding (possibly non connected) discrete surfaces spanning a finite set of discrete boundary curves in the three-dimensional space and minimizing (glo...
Thomas Schoenemann, Simon Masnou, Daniel Cremers
JDA
2006
90views more  JDA 2006»
15 years 4 months ago
An improved approximation algorithm for the asymmetric TSP with strengthened triangle inequality
We consider the asymmetric traveling salesperson problem with -parameterized triangle inequality for [1/2, 1). That means, the edge weights fulfill w(u, v)
Markus Bläser, Bodo Manthey, Jiri Sgall