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STOC
1998
ACM
139views Algorithms» more  STOC 1998»
15 years 10 months ago
Approximation Schemes for Euclidean k-Medians and Related Problems
In the k-median problem we are given a set S of n points in a metric space and a positive integer k. We desire to locate k medians in space, such that the sum of the distances fro...
Sanjeev Arora, Prabhakar Raghavan, Satish Rao
IPCO
2008
129views Optimization» more  IPCO 2008»
15 years 7 months ago
A Polynomial Time Approximation Scheme for the Square Packing Problem
Given a set Q of squares with positive pro ts, the square packing problem is to select and pack a subset of squares of maximum pro t into a rectangular bin R. We present a polynomi...
Klaus Jansen, Roberto Solis-Oba
ESA
2003
Springer
140views Algorithms» more  ESA 2003»
15 years 11 months ago
Improved Approximation of the Stable Marriage Problem
The stable marriage problem has recently been studied in its general setting, where both ties and incomplete lists are allowed. It is NP-hard to find a stable matching of maximum ...
Magnús M. Halldórsson, Kazuo Iwama, ...
CORR
2011
Springer
161views Education» more  CORR 2011»
15 years 24 days ago
On Parsimonious Explanations for 2-D Tree- and Linearly-Ordered Data
This paper studies the “explanation problem” for tree- and linearly-ordered array data, a problem motivated by database applications and recently solved for the one-dimensiona...
Howard J. Karloff, Flip Korn, Konstantin Makaryche...
ICDT
2005
ACM
128views Database» more  ICDT 2005»
15 years 11 months ago
The Pipelined Set Cover Problem
Abstract. A classical problem in query optimization is to find the optimal ordering of a set of possibly correlated selections. We provide an ion of this problem as a generalizati...
Kamesh Munagala, Shivnath Babu, Rajeev Motwani, Je...