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FOCS
2006
IEEE
14 years 1 months ago
On the Optimality of the Dimensionality Reduction Method
We investigate the optimality of (1+ )-approximation algorithms obtained via the dimensionality reduction method. We show that: • Any data structure for the (1 + )-approximate n...
Alexandr Andoni, Piotr Indyk, Mihai Patrascu
ISAAC
2005
Springer
106views Algorithms» more  ISAAC 2005»
14 years 1 months ago
Distance Labeling in Hyperbolic Graphs
A graph G is δ-hyperbolic if for any four vertices u, v, x, y of G the two larger of the three distance sums dG(u, v) + dG(x, y), dG(u, x) + dG(v, y), dG(u, y) + dG(v, x) differ b...
Cyril Gavoille, Olivier Ly
EOR
2006
103views more  EOR 2006»
13 years 7 months ago
Exact solutions to a class of stochastic generalized assignment problems
This paper deals with a stochastic Generalized Assignment Problem with recourse. Only a random subset of the given set of jobs will require to be actually processed. An assignment...
Maria Albareda-Sambola, Maarten H. van der Vlerk, ...
WDAG
1990
Springer
80views Algorithms» more  WDAG 1990»
13 years 12 months ago
Tight Bounds on the Round Complexity of Distributed 1-Solvable Tasks
A distributed task T is 1-solvable if there exists a protocol that solves it in the presence of (at most) one crash failure. A precise characterization of the 1-solvable tasks was...
Ofer Biran, Shlomo Moran, Shmuel Zaks
ICRA
2003
IEEE
108views Robotics» more  ICRA 2003»
14 years 1 months ago
PCG: a foothold selection algorithm for spider robot locomotion in 2D tunnels
This paper presents an algorithm, called PCG, for planning the foothold positions of spider-like robots in planar tunnels bounded by piecewise linear walls. The paper focuses on 3-...
Amir Shapiro, Elon Rimon