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» Query Transformation for PSJ-Queries
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VLDB
1987
ACM
69views Database» more  VLDB 1987»
13 years 11 months ago
Query Transformation for PSJ-Queries
H. Z. Yang, Per-Åke Larson
SIGMOD
1992
ACM
160views Database» more  SIGMOD 1992»
13 years 11 months ago
Extensible/Rule Based Query Rewrite Optimization in Starburst
This paper describes the Query Rewrite facility of the Starburst extensible database system, a novel phase of query optimization. We present a suite of rewrite rules used in Starb...
Hamid Pirahesh, Joseph M. Hellerstein, Waqar Hasan
ICASSP
2011
IEEE
12 years 11 months ago
Efficient search of music pitch contours using wavelet transforms and segmented dynamic time warping
We propose a method of music melody matching based on their “continuous” (or “time-frame-based”) pitch contours. Most previous methods using frame-based contours either ma...
Woojay Jeon, Changxue Ma
PVLDB
2010
97views more  PVLDB 2010»
13 years 5 months ago
TRAMP: Understanding the Behavior of Schema Mappings through Provenance
Though partially automated, developing schema mappings remains a complex and potentially error-prone task. In this paper, we present TRAMP (TRAnsformation Mapping Provenance), an ...
Boris Glavic, Gustavo Alonso, Renée J. Mill...