316 search results - page 25 / 64 » Approximation algorithms for hierarchical location problems |
FSTTCS
2009
Springer
14 years 2 months ago
2009
Springer
ABSTRACT. Message Ferrying is a mobility assisted technique for working around the disconnectedness and sparsity of Mobile ad hoc networks. One of the important questions which ari...
KDD
2006
ACM
14 years 8 months ago
2006
ACM
In this paper, we consider the problem of identifying and segmenting topically cohesive regions in the URL tree of a large website. Each page of the website is assumed to have a t...
ICIP
2010
IEEE
13 years 5 months ago
2010
IEEE
Based on the theory of Markov Random Fields, a Bayesian regularization model for diffusion tensor images (DTI) is proposed in this paper. The low-degree parameterization of diffus...
ESA
2007
Springer
14 years 1 months ago
2007
Springer
In this paper we study several routing problems that generalize shortest paths and the Traveling Salesman Problem. We consider a more general model that incorporates the actual co...
IPSN
2007
Springer
14 years 1 months ago
2007
Springer
In this paper we propose a lightweight algorithm for constructing multi-resolution data representations for sensor networks. We compute, at each sensor node u, O(log n) aggregates...