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SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
15 years 10 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...
ROBOCUP
2007
Springer
99views Robotics» more  ROBOCUP 2007»
15 years 3 months ago
Instance-Based Action Models for Fast Action Planning
Abstract. Two main challenges of robot action planning in real domains are uncertain action effects and dynamic environments. In this paper, an instance-based action model is lear...
Mazda Ahmadi, Peter Stone
ROBOCOMM
2007
IEEE
15 years 4 months ago
Minimal energy path planning for wireless robots
—For the first time, the problem of optimizing energy for communication and motion is investigated. We consider a single mobile robot with continuous high bandwidth wireless com...
Chia-Ching Ooi, Christian Schindelhauer
COMGEO
2007
ACM
14 years 9 months ago
On incremental rendering of silhouette maps of a polyhedral scene
We consider the problem of incrementally rendering a polyhedral scene while the viewpoint is moving. In practical situations the number of geometric primitives to be rendered can ...
Alon Efrat, Leonidas J. Guibas, Olaf A. Hall-Holt,...
SIGMOD
2001
ACM
120views Database» more  SIGMOD 2001»
15 years 10 months ago
Materialized View Selection and Maintenance Using Multi-Query Optimization
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
Hoshi Mistry, Prasan Roy, S. Sudarshan, Krithi Ram...