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WEBI
2010
Springer
13 years 7 months ago
On Using Query Logs for Static Index Pruning
Static index pruning techniques aim at removing from the posting lists of an inverted file the references to documents which are likely to be not relevant for answering user querie...
Hoang Thanh Lam, Raffaele Perego, Fabrizio Silvest...
SIGMOD
2012
ACM
223views Database» more  SIGMOD 2012»
12 years 7 days ago
MaskIt: privately releasing user context streams for personalized mobile applications
The rise of smartphones equipped with various sensors has enabled personalization of various applications based on user contexts extracted from sensor readings. At the same time i...
Michaela Götz, Suman Nath, Johannes Gehrke
WWW
2005
ACM
14 years 10 months ago
Ranking definitions with supervised learning methods
This paper is concerned with the problem of definition search. Specifically, given a term, we are to retrieve definitional excerpts of the term and rank the extracted excerpts acc...
Jun Xu, Yunbo Cao, Hang Li, Min Zhao
VLDB
2004
ACM
144views Database» more  VLDB 2004»
14 years 3 months ago
Returning Modified Rows - SELECT Statements with Side Effects
SQL in the IBM® DB2® Universal Database™ for Linux®, UNIX®, and Windows® (DB2 UDB) database management product has been extended to support nested INSERT, UPDATE, and DELET...
Andreas Behm, Serge Rielau, Richard Swagerman
DEXA
2004
Springer
91views Database» more  DEXA 2004»
14 years 1 months ago
Efficient Processing of Distributed Iceberg Semi-joins
The Iceberg SemiJoin (ISJ) of two datasets R and S returns the tuples in R which join with at least k tuples of S. The ISJ operator is essential in many practical applications incl...
Mohammed Kasim Imthiyaz, Dong Xiaoan, Panos Kalnis