Sciweavers

SODA
2001
ACM
86views Algorithms» more  SODA 2001»
13 years 5 months ago
Pattern matching for sets of segments
In this paper we present algorithms for a number of problems in geometric pattern matching where the input consist of a collections of segments in the plane. Our work consists of ...
Alon Efrat, Piotr Indyk, Suresh Venkatasubramanian
SODA
2001
ACM
114views Algorithms» more  SODA 2001»
13 years 5 months ago
Approximation algorithms for TSP with neighborhoods in the plane
In the Euclidean TSP with neighborhoods (TSPN), we are given a collection of n regions (neighborhoods) and we seek a shortest tour that visits each region. As a generalization of ...
Adrian Dumitrescu, Joseph S. B. Mitchell
SODA
2001
ACM
92views Algorithms» more  SODA 2001»
13 years 5 months ago
On universally easy classes for NP-complete problems
We explore the natural question of whether all NP-complete problems have a common restriction under which they are polynomially solvable. More precisely, we study what languages a...
Erik D. Demaine, Alejandro López-Ortiz, J. ...
SODA
2001
ACM
87views Algorithms» more  SODA 2001»
13 years 5 months ago
A linear lower bound on index size for text retrieval
Most information-retrieval systems preprocess the data to produce an auxiliary index structure. Empirically, it has been observed that there is a tradeoff between query response t...
Erik D. Demaine, Alejandro López-Ortiz
SODA
2001
ACM
166views Algorithms» more  SODA 2001»
13 years 5 months ago
Better approximation algorithms for bin covering
Bin covering takes as input a list of items with sizes in (0 1) and places them into bins of unit demand so as to maximize the number of bins whose demand is satis ed. This is in ...
János Csirik, David S. Johnson, Claire Keny...
SODA
2001
ACM
150views Algorithms» more  SODA 2001»
13 years 5 months ago
A faster implementation of the Goemans-Williamson clustering algorithm
We give an implementation of the Goemans-Williamson clustering procedure which is at the core of several approximation algorithms including those for Generalized Steiner Trees, Pr...
Richard Cole, Ramesh Hariharan, Moshe Lewenstein, ...
SODA
2001
ACM
69views Algorithms» more  SODA 2001»
13 years 5 months ago
Guessing secrets
Fan R. K. Chung, Ronald L. Graham, Frank Thomson L...
SODA
2001
ACM
103views Algorithms» more  SODA 2001»
13 years 5 months ago
Dynamic skin triangulation
This paper describes an algorithm for maintaining an approximating triangulation of a deforming surface in
Ho-Lun Cheng, Tamal K. Dey, Herbert Edelsbrunner, ...
SODA
2001
ACM
163views Algorithms» more  SODA 2001»
13 years 5 months ago
Algorithms for facility location problems with outliers
d Abstract) Moses Charikar Samir Khullery David M. Mountz Giri Narasimhanx Facility location problems are traditionally investigated with the assumption that all the clients are t...
Moses Charikar, Samir Khuller, David M. Mount, Gir...
SODA
2001
ACM
188views Algorithms» more  SODA 2001»
13 years 5 months ago
Approximation algorithms for the 0-extension problem
In the 0-extension problem, we are given a weighted graph with some nodes marked as terminals and a semimetric on the set of terminals. Our goal is to assign the rest of the nodes ...
Gruia Calinescu, Howard J. Karloff, Yuval Rabani