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VLDB
1997
ACM
14 years 1 months ago
1997
ACM
Query optimizers that explore a search space exhaustively using transformation rules usually apply all possible rules on each alternative, and stop when no new information is prod...
DIALM
2007
ACM
14 years 1 months ago
2007
ACM
In the near future, mobile devices are expected to have a storage capacity comparable to today's desktop machines. As the amount of infomation grows, conventional search tool...
ESORICS
2009
Springer
14 years 1 months ago
2009
Springer
Abstract. Online advertising has been suffering serious click fraud problem. Fraudulent publishers can generate false clicks using malicious scripts embedded in their web pages. Ev...
CIKM
2006
Springer
14 years 1 months ago
2006
Springer
Familiar evaluation methodologies for information retrieval (IR) are not well suited to the task of comparing systems in many real settings. These systems and evaluation methods m...
CIKM
2006
Springer
14 years 1 months ago
2006
Springer
This paper revisits the analysis of annotation propagation from source databases to views defined in terms of conjunctive (SPJ) queries. Given a source database D, an SPJ query Q,...