Sciweavers

1941 search results - page 42 / 389
» On the Hardness of Approximate Reasoning
Sort
View
ESA
2003
Springer
189views Algorithms» more  ESA 2003»
15 years 5 months ago
On the Complexity of Approximating TSP with Neighborhoods and Related Problems
We prove that various geometric covering problems, related to the Travelling Salesman Problem cannot be efficiently approximated to within any constant factor unless P = NP. This ...
Shmuel Safra, Oded Schwartz
SODA
2012
ACM
225views Algorithms» more  SODA 2012»
13 years 2 months ago
Approximating rooted Steiner networks
The Directed Steiner Tree (DST) problem is a cornerstone problem in network design. We focus on the generalization of the problem with higher connectivity requirements. The proble...
Joseph Cheriyan, Bundit Laekhanukit, Guyslain Nave...
DEXA
2010
Springer
180views Database» more  DEXA 2010»
15 years 28 days ago
Approximate Instance Retrieval on Ontologies
With the development of more expressive description logics (DLs) for the Web Ontology Language OWL the question arises how we can properly deal with the high computational complexi...
Tuvshintur Tserendorj, Stephan Grimm, Pascal Hitzl...
CIAC
2010
Springer
282views Algorithms» more  CIAC 2010»
15 years 3 months ago
Improved Approximations for TSP with Simple Precedence Constraints
In this paper, we consider variants of the traveling salesman problem with precedence constraints. We characterize hard input instances for Christofides' algorithm and Hoogeve...
Hans-Joachim Boeckenhauer, Ralf Klasing, Tobias Mo...
ICMCS
2007
IEEE
137views Multimedia» more  ICMCS 2007»
15 years 6 months ago
Wireless Video Streaming with Collaborative Admission Control for Home Networks
Limited bandwidth and high packet loss pose a serious challenge for video streaming over wireless networks. Even when packet loss in the medium is not present, the fluctuating ava...
Monchai Lertsutthiwong, Thinh Nguyen, Alan Fern