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COMPGEOM
2009
ACM
14 years 2 months ago
Embedding rivers in polyhedral terrains
Data conflation is a major issue in GIS: spatial data obtained from different sources, using different acquisition techniques, needs to be combined into one single consistent d...
Marc J. van Kreveld, Rodrigo I. Silveira
IWCMC
2009
ACM
14 years 2 months ago
Multiple-antenna multiple-relay system with precoding for multiuser transmission
Multi-hop relaying will play a central role in next generation wireless systems. In this paper a novel relaying strategy that uses multiple-input multiple-output (MIMO) relays in ...
Arash Talebi, Witold A. Krzymien
FOCS
2006
IEEE
14 years 1 months ago
Approximation algorithms for allocation problems: Improving the factor of 1 - 1/e
Combinatorial allocation problems require allocating items to players in a way that maximizes the total utility. Two such problems received attention recently, and were addressed ...
Uriel Feige, Jan Vondrák
IWCMC
2006
ACM
14 years 1 months ago
Optimal hierarchical energy efficient design for MANETs
Due to the growing interest in mobile wireless Ad-Hoc networks’ (MANETs) applications, researchers have proposed many routing protocols that differ in their objective. Energy ef...
Wasim El-Hajj, Dionysios Kountanis, Ala I. Al-Fuqa...
MM
2006
ACM
221views Multimedia» more  MM 2006»
14 years 1 months ago
Video object segmentation by motion-based sequential feature clustering
Segmentation of video foreground objects from background has many important applications, such as human computer interaction, video compression, multimedia content editing and man...
Mei Han, Wei Xu, Yihong Gong