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» Improved Query Performance with Variant Indexes
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116
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SIGMOD
2000
ACM
173views Database» more  SIGMOD 2000»
15 years 6 days ago
javax.XXL: A prototype for a Library of Query processing Algorithms
In this paper we describe XXL (eXtensible and fleXible Library), a toolkit for rapid prototyping query processing algorithms. XXL is a flexible, high-level, platform independent J...
Jochen Van den Bercken, Jens-Peter Dittrich, Bernh...
132
Voted
ICDM
2002
IEEE
163views Data Mining» more  ICDM 2002»
15 years 5 months ago
High Performance Data Mining Using the Nearest Neighbor Join
The similarity join has become an important database primitive to support similarity search and data mining. A similarity join combines two sets of complex objects such that the r...
Christian Böhm, Florian Krebs
EDBT
2010
ACM
392views Database» more  EDBT 2010»
15 years 7 months ago
Position list word aligned hybrid: optimizing space and performance for compressed bitmaps
Compressed bitmap indexes are increasingly used for efficiently querying very large and complex databases. The Word Aligned Hybrid (WAH) bitmap compression scheme is commonly rec...
François Deliège, Torben Bach Peders...
94
Voted
SIGMOD
2004
ACM
124views Database» more  SIGMOD 2004»
16 years 18 days ago
BLAS: An Efficient XPath Processing System
We present BLAS , a Bi-LAbeling based System, for efficiently processing complex XPath queries over XML data. BLAS uses Plabeling to process queries involving consecutive child ax...
Yi Chen, Susan B. Davidson, Yifeng Zheng
EDBT
2009
ACM
156views Database» more  EDBT 2009»
15 years 5 months ago
Secondary bitmap indexes with vertical and horizontal partitioning
Traditional bitmap indexes are utilized as a special type of primary or clustered indexes where the queries are answered by performing fast logical operations supported by hardwar...
Guadalupe Canahuate, Tan Apaydin, Ahmet Sacan, Hak...