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133
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COMPGEOM
2009
ACM
15 years 10 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
106
Voted
SIGECOM
2005
ACM
101views ECommerce» more  SIGECOM 2005»
15 years 9 months ago
Fairness and optimality in congestion games
We study two problems, that of computing social optimum and that of finding fair allocations, in the congestion game model of Milchtaich[8] Although we show that the general prob...
Deeparnab Chakrabarty, Aranyak Mehta, Viswanath Na...
135
Voted
JAPLL
2006
87views more  JAPLL 2006»
15 years 3 months ago
Is ZF a hack?: Comparing the complexity of some (formalist interpretations of) foundational systems for mathematics
This paper presents Automath encodings (which also are valid in LF/P) of various kinds of foundations of mathematics. Then it compares these encodings according to their size, to f...
Freek Wiedijk
123
Voted
CORR
2006
Springer
156views Education» more  CORR 2006»
15 years 3 months ago
Complex Lattice Reduction Algorithm for Low-Complexity MIMO Detection
Recently, lattice-reduction-aided detectors have been proposed for multiple-input multiple-output (MIMO) systems to give performance with full diversity like maximum likelihood rec...
Ying Hung Gan, Cong Ling, Wai Ho Mow
150
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GECCO
2005
Springer
107views Optimization» more  GECCO 2005»
15 years 9 months ago
Minimum spanning trees made easier via multi-objective optimization
Many real-world problems are multi-objective optimization problems and evolutionary algorithms are quite successful on such problems. Since the task is to compute or approximate t...
Frank Neumann, Ingo Wegener