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SIGMOD
2009
ACM
161views Database» more  SIGMOD 2009»
16 years 1 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
VLDB
2004
ACM
124views Database» more  VLDB 2004»
15 years 11 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The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...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...
HICSS
2002
IEEE
140views Biometrics» more  HICSS 2002»
15 years 11 months ago
Intelligent Student Profiling with Fuzzy Models
Traditional Web-based educational systems still have several shortcomings when comparing with a real-life classroom teaching, such as lack of contextual and adaptive support, lack...
Dongming Xu, Huaiqing Wang, Kaile Su
DESRIST
2009
Springer
109views Education» more  DESRIST 2009»
15 years 10 months ago
The constitutive and the instrumental in social design
Simon’s The Sciences of the Artificial is rightly influential as a founding text in design research in the information systems field (IS). Simon’s contributions in the same vo...
Murali Venkatesh
VLDB
1990
ACM
128views Database» more  VLDB 1990»
15 years 10 months ago
Advanced Query Processing in Object Bases Using Access Support Relations
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
Alfons Kemper, Guido Moerkotte