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» Query Optimization in an OODBMS
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134
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VLDB
2004
ACM
123views Database» more  VLDB 2004»
15 years 10 months ago
CORDS: Automatic Generation of Correlation Statistics in DB2
When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magni...
Ihab F. Ilyas, Volker Markl, Peter J. Haas, Paul G...
EDBT
2009
ACM
144views Database» more  EDBT 2009»
15 years 8 months ago
Efficient maintenance techniques for views over active documents
Many Web applications are based on dynamic interactions between Web components exchanging flows of information. Such a situation arises for instance in mashup systems or when moni...
Serge Abiteboul, Pierre Bourhis, Bogdan Marinoiu
176
Voted
BNCOD
2007
137views Database» more  BNCOD 2007»
15 years 6 months ago
Isolating Order Semantics in Order-Sensitive XQuery-to-SQL Translation
Order is essential for XML query processing. Efficient XML processing with order consideration over relational storage is non-trivial, especially for complex nested XQuery expressi...
Song Wang, Ling Wang, Elke A. Rundensteiner
SIGMOD
2010
ACM
208views Database» more  SIGMOD 2010»
15 years 4 months ago
Hierarchically organized skew-tolerant histograms for geographic data objects
Histograms have been widely used for fast estimation of query result sizes in query optimization. In this paper, we propose a new histogram method, called the Skew-Tolerant Histog...
Yohan J. Roh, Jae Ho Kim, Yon Dohn Chung, Jin Hyun...
ICDE
2006
IEEE
176views Database» more  ICDE 2006»
16 years 6 months ago
Mondrian Multidimensional K-Anonymity
K-Anonymity has been proposed as a mechanism for protecting privacy in microdata publishing, and numerous recoding "models" have been considered for achieving kanonymity...
Kristen LeFevre, David J. DeWitt, Raghu Ramakrishn...