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» Approximation algorithms for co-clustering
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STOC
2001
ACM
139views Algorithms» more  STOC 2001»
16 years 6 months ago
Approximate distance oracles
Let G = (V, E) be an undirected weighted graph with |V | = n and |E| = m. Let k 1 be an integer. We show that G = (V, E) can be preprocessed in O(kmn1/k ) expected time, construc...
Mikkel Thorup, Uri Zwick
SODA
2010
ACM
172views Algorithms» more  SODA 2010»
16 years 3 months ago
A quasi-polynomial time approximation scheme for Euclidean capacitated vehicle routing
In the capacitated vehicle routing problem, introduced by Dantzig and Ramser in 1959, we are given the locations of n customers and a depot, along with a vehicle of capacity k, an...
Aparna Das, Claire Mathieu
ISMVL
2009
IEEE
161views Hardware» more  ISMVL 2009»
16 years 1 months ago
Mining Approximative Descriptions of Sets Using Rough Sets
Using concepts from rough set theory we investigate the existence of approximative descriptions of collections of objects that can be extracted from data sets, a problem of intere...
Dan A. Simovici, Selim Mimaroglu
DIS
2007
Springer
16 years 21 days ago
On Approximating Minimum Infrequent and Maximum Frequent Sets
The maximum cardinality of a frequent set as well as the minimum cardinality of an infrequent set are important characteristic numbers in frequent (item) set mining. Gunopulos et a...
Mario Boley
ICRA
2005
IEEE
114views Robotics» more  ICRA 2005»
16 years 4 days ago
A Proof for the Approximate Sparsity of SLAM Information Matrices
— For the Simultaneous Localization and Mapping problem several efficient algorithms have been proposed that make use of a sparse information matrix representation (e.g. SEIF, T...
Udo Frese