743 search results - page 83 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
IWPEC
2009
Springer
14 years 2 months ago
2009
Springer
We study the parameterized complexity of two families of problems: the bounded length disjoint paths problem and the bounded length cut problem. From Menger’s theorem both proble...
IPL
2006
13 years 8 months ago
2006
We study an NP-hard (and MaxSNP-hard) problem in trees--Multicommodity Demand Flow--dealing with demand flows between pairs of nodes and trying to maximize the value of the routed...
JPDC
2007
13 years 7 months ago
2007
High-dimensional problems arising from robot motion planning, biology, data mining, and geographic information systems often require the computation of k nearest neighbor (knn) gr...
PODC
2006
ACM
14 years 1 months ago
2006
ACM
This paper presents a distributed algorithm for wireless adhoc networks that runs in polylogarithmic number of rounds in the size of the network and constructs a lightweight, line...
COMPGEOM
2004
ACM
14 years 1 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...