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» Query Transformation for PSJ-Queries
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VLDB
1987
ACM
69views Database» more  VLDB 1987»
15 years 1 months ago
Query Transformation for PSJ-Queries
H. Z. Yang, Per-Åke Larson
SIGMOD
1992
ACM
160views Database» more  SIGMOD 1992»
15 years 1 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
14 years 1 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»
14 years 8 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...