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ADBIS
1998
Springer
100views Database» more  ADBIS 1998»
15 years 2 months ago
Multiple Range Query Optimization in Spatial Databases
In order to answer efficiently range queries in 2-d R-trees, first we sort queries by means of a space filling curve, then we group them together, and finally pass them for process...
Apostolos Papadopoulos, Yannis Manolopoulos
VLDB
1997
ACM
109views Database» more  VLDB 1997»
15 years 1 months ago
Effective Memory Use in a Media Server
A number of techniques have been developed for maximizing disk utilization in media servers, including disk arm scheduling and data placement ones. Instead, in this paper we focus...
Edward Y. Chang, Hector Garcia-Molina
KI
1993
Springer
15 years 1 months ago
Verbmobil - Translation of Face-To-Face Dialogs
Verbmobil is a long-term project on the translation of spontaneous language in negotiation dialogs. We describe the goals of the project, the chosen discourse domains and the init...
Wolfgang Wahlster
ECRTS
2004
IEEE
15 years 1 months ago
A Variable Rate Execution Model
We present a task model for adaptive real-time tasks in which a task's execution rate requirements are allowed to change at any time. The model, variable rate execution (VRE)...
Steve Goddard, Xin Liu
CORR
2008
Springer
80views Education» more  CORR 2008»
14 years 9 months ago
Channel and Multiuser Diversities in Wireless Systems: Delay-Energy Tradeoff
We consider a communication system with multi-access fading channel. Each user in the system requires certain rate guarantee. Our main contribution is to devise a scheduling scheme...
Prasanna Chaporkar, Kimmo Kansanen, Ralf R. Mü...