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» A Multiagent Planning Architecture
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SIGMOD
2009
ACM
161views Database» more  SIGMOD 2009»
14 years 3 months ago
Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
Wook-Shin Han, Jinsoo Lee
ABIALS
2008
Springer
14 years 3 months ago
Anticipative Control of Voluntary Action: Towards a Computational Model
Abstract. Human action is goal-directed and must thus be guided by anticipations of wanted action effects. How anticipatory action control is possible and how it can emerge from ex...
Pascal Haazebroek, Bernhard Hommel
MOBICOM
2006
ACM
14 years 2 months ago
Long-distance 802.11b links: performance measurements and experience
The use of 802.11 long-distance links is a cost-effective means of providing wireless connectivity to rural areas. Although deployments in this setting are increasing, a systemat...
Kameswari Chebrolu, Bhaskaran Raman, Sayandeep Sen
BTW
2005
Springer
113views Database» more  BTW 2005»
14 years 2 months ago
A Learning Optimizer for a Federated Database Management System
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
Stephan Ewen, Michael Ortega-Binderberger, Volker ...
VLDB
2004
ACM
124views Database» more  VLDB 2004»
14 years 2 months ago
Automated Statistics Collection in DB2 UDB
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
Ashraf Aboulnaga, Peter J. Haas, Sam Lightstone, G...