496 search results - page 47 / 100 » A Polynomial-Time Approximation Algorithm for a Geometric Di... |
MOBICOM
2006
ACM
14 years 1 months ago
2006
ACM
We consider the problem of throughput-optimal scheduling in wireless networks subject to interference constraints. We model the interference using a family of K-hop interference m...
FOCS
2009
IEEE
14 years 2 months ago
2009
IEEE
In many settings the power of truthful mechanisms is severely bounded. In this paper we use randomization to overcome this problem. In particular, we construct an FPTAS for multi-...
ICALP
2005
Springer
14 years 1 months ago
2005
Springer
In this paper we initiate the study of the AND-OR directed feedback vertex set problem from the viewpoint of approximation algorithms. This AND-OR feedback vertex set problem is m...
FOIKS
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. We give a general framework for approximate query processing in semistructured databases. We focus on regular path queries, which are the integral part of most of the que...
COMPGEOM
2005
ACM
13 years 9 months ago
2005
ACM
Given a Euclidean graph G in Rd with n vertices and m edges we consider the problem of adding a shortcut such that the stretch factor of the resulting graph is minimized. Currentl...