Sciweavers

3874 search results - page 124 / 775
» Approximation Algorithms for k-hurdle Problems
Sort
View
IPL
2000
146views more  IPL 2000»
15 years 1 months ago
Better approximations for max TSP
We combine two known polynomial time approximation algorithms for the maximum traveling salesman problem to obtain a randomized algorithm which outputs a solution with expected va...
Refael Hassin, Shlomi Rubinstein
132
Voted
CORR
2011
Springer
205views Education» more  CORR 2011»
14 years 5 months ago
Algorithms for Implicit Hitting Set Problems
A hitting set for a collection of sets is a set that has a nonempty intersection with each set in the collection; the hitting set problem is to find a hitting set of minimum card...
Karthekeyan Chandrasekaran, Richard Karp, Erick Mo...
PODS
2010
ACM
215views Database» more  PODS 2010»
15 years 6 months ago
An optimal algorithm for the distinct elements problem
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
Daniel M. Kane, Jelani Nelson, David P. Woodruff
EOR
2007
93views more  EOR 2007»
15 years 1 months ago
Exact algorithms for procurement problems under a total quantity discount structure
In this paper, we study the procurement problem faced by a buyer who needs to purchase a variety of goods from suppliers applying a so-called total quantity discount policy. This ...
Dries R. Goossens, A. J. T. Maas, Frits C. R. Spie...
CORR
2010
Springer
209views Education» more  CORR 2010»
15 years 1 months ago
An Algorithm to Extract Rules from Artificial Neural Networks for Medical Diagnosis Problems
Artificial neural networks (ANNs) have been successfully applied to solve a variety of classification and function approximation problems. Although ANNs can generally predict bett...
S. M. Kamruzzaman, Md. Monirul Islam