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FSR
2007
Springer
135views Robotics» more  FSR 2007»
14 years 4 months ago
State Space Sampling of Feasible Motions for High Performance Mobile Robot Navigation in Highly Constrained Environments
Sampling in the space of controls or actions is a well-established method for ensuring feasible local motion plans. However, as mobile robots advance in performance and competence ...
Thomas M. Howard, Colin J. Green, Alonzo Kelly
LADS
2007
Springer
14 years 4 months ago
Goal Selection Strategies for Rational Agents
In agent theory and agent programming, goals constitute the motivational attitude of rational agents and form the key concept in explaining and generating their pro-active behavior...
Nick A. M. Tinnemeier, Mehdi Dastani, John-Jules C...
VLDB
1994
ACM
114views Database» more  VLDB 1994»
14 years 2 months ago
Including Group-By in Query Optimization
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
Surajit Chaudhuri, Kyuseok Shim
VLDB
1992
ACM
111views Database» more  VLDB 1992»
14 years 2 months ago
Using Segmented Right-Deep Trees for the Execution of Pipelined Hash Joins
In this paper, we explore the execution of pipelined hash joins in a multiprocessor-based database system. To improve the query execution, an innovative approach on query executio...
Ming-Syan Chen, Ming-Ling Lo, Philip S. Yu, Honest...
PDIS
1996
IEEE
14 years 2 months ago
Capabilities-Based Query Rewriting in Mediator Systems
Users today are struggling to integrate a broad range of information sources providing di erent levels of query capabilities. Currently, data sources with di erent and limitedcapa...
Yannis Papakonstantinou, Ashish Gupta, Laura M. Ha...