TIT
2011
13 years 5 months ago
2011
Loopy belief propagation has been employed in a wide variety of applications with great empirical success, but it comes with few theoretical guarantees. In this paper we analyze t...
CORR
2010
Springer
13 years 8 months ago
2010
Springer
We present a general method of designing fast approximation algorithms for cut-based minimization problems in undirected graphs. In particular, we develop a technique that given a...
TPDS
2008
13 years 10 months ago
2008
We study the problem of constructing a data gathering tree over a wireless sensor network in order to minimize the total energy for compressing and transporting information from a ...
IJCM
2008
13 years 11 months ago
2008
Abstract. We analyze Roman domination from a parameterized perspective. More specifically, we prove that this problem is W[2]-complete for general graphs. However, parameterized al...
FOCS
2003
IEEE
14 years 4 months ago
2003
IEEE
We consider the problem of clustering a collection of elements based on pairwise judgments of similarity and dissimilarity. Bansal, Blum and Chawla (in: Proceedings of 43rd FOCS, ...
COMPGEOM
2004
ACM
14 years 4 months ago
2004
ACM
A frequently arising problem in computational geometry is when a physical structure, such as an ad-hoc wireless sensor network or a protein backbone, can measure local information...
STACS
2010
Springer
14 years 5 months ago
2010
Springer
Reachability and shortest path problems are NL-complete for general graphs. They are known to be in L for graphs of tree-width 2 [14]. However, for graphs of treewidth larger than ...
STACS
2010
Springer
14 years 5 months ago
2010
Springer
Testing whether there is an induced path in a graph spanning k given vertices is already NP-complete in general graphs when k = 3. We show how to solve this problem in polynomial t...
SODA
2010
ACM
14 years 8 months ago
2010
ACM
The minimum latency problem (MLP) is a well-studied variant of the traveling salesman problem (TSP). In the MLP, the server's goal is to minimize the average latency that the...