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» Efficient Processing of Top-k Queries in Uncertain Databases
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ICDE
2003
IEEE
148views Database» more  ICDE 2003»
14 years 10 months ago
Efficient Computation of Subqueries in Complex OLAP
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
Michael H. Böhlen, Michael O. Akinde
PODS
2006
ACM
138views Database» more  PODS 2006»
14 years 9 months ago
Efficiently ordering subgoals with access constraints
d Abstract] Guizhen Yang Artificial Intelligence Center SRI International Menlo Park, CA 94025, USA Michael Kifer Dept. of Computer Science Stony Brook University Stony Brook, NY 1...
Guizhen Yang, Michael Kifer, Vinay K. Chaudhri
SIGMOD
2009
ACM
114views Database» more  SIGMOD 2009»
14 years 9 months ago
A framework for testing query transformation rules
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
Hicham G. Elmongui, Vivek R. Narasayya, Ravishanka...
VLDB
1998
ACM
82views Database» more  VLDB 1998»
14 years 1 months ago
Reducing the Braking Distance of an SQL Query Engine
In a recent paper, we proposed adding a STOP AFTER clause to SQL to permit the cardinality of a query result to be explicitly limited by query writers and query tools. We demonstr...
Michael J. Carey, Donald Kossmann
BIBM
2009
IEEE
206views Bioinformatics» more  BIBM 2009»
14 years 3 months ago
Application of Kernel Functions for Accurate Similarity Search in Large Chemical Databases
Background: Similaritysearch in chemical structure databases is an important problem with many applications in chemical genomics, drug design, and efficient chemical probe screeni...
Xiaohong Wang, Jun Huan, Aaron M. Smalter, Gerald ...