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IDT
2008
123views more  IDT 2008»
13 years 5 months ago
A rich semantic model of track as a foundation for sharing beliefs regarding dynamic objects and events
: Many defense, homeland security, and commercial security objectives require continuous tracking of mobile entities such as aircraft. The systems that perform these functions prod...
Frederick Hayes-Roth, Curtis L. Blais
SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
14 years 5 months ago
RankSQL: Query Algebra and Optimization for Relational Top-k Queries
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...
DAIS
2003
13 years 6 months ago
Rational Server Selection for Mobile Agents
- Mobile agents have the ability to migrate through heterogeneous networks and execute at remote hosts. This ability can be exploited to improve the performance of agent based appl...
Carsten Pils, Stefan Diepolder
ICC
2000
IEEE
123views Communications» more  ICC 2000»
13 years 9 months ago
Design of Adaptive Bit Interleaved TCM for Rayleigh Fading Channels
fixed rate coding in terms of SNR and average throughput was obtained. In fact, the concept of variable rate adaptive In this paper, we propose a bandwidth efficient error cor- cod...
Vincent K. N. Lau
WWW
2006
ACM
14 years 6 months ago
Optimizing scoring functions and indexes for proximity search in type-annotated corpora
We introduce a new, powerful class of text proximity queries: find an instance of a given "answer type" (person, place, distance) near "selector" tokens matchi...
Soumen Chakrabarti, Kriti Puniyani, Sujatha Das