582 search results - page 28 / 117 » Performance Comparison of Point and Spatial Access Methods |
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
—In this paper, we present an analytical model to evaluate the hidden station effect on the access delay of the IEEE 802.11 Distributed Coordination Function (DCF) in both non-sa...
ICMCS
2005
IEEE
14 years 1 months ago
2005
IEEE
This study describes experiments on automatic detection of semantic concepts, which are textual descriptions about the digital video content. The concepts can be further used in c...
CCS
2010
ACM
13 years 6 months ago
2010
ACM
We address the problem of restricting root’s ability to change arbitrary files on disk, in order to prevent abuse on most current desktop operating systems. The approach first...
EMO
2001
Springer
14 years 4 days ago
2001
Springer
We compare two multiobjective evolutionary algorithms, with deterministic gradient based optimization methods for the dose optimization problem in high-dose rate (HDR) brachythera...
IJCV
2007
13 years 7 months ago
2007
— This work presents an automatic algorithm for extracting vectorial land registers from altimetric data in dense urban areas. We focus on elementary shape extraction and propose...