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» Efficient Evaluation of All-Nearest-Neighbor Queries
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ICEIS
2006
IEEE
14 years 1 months ago
Filtering Unsatisfiable XPATH Queries
The satisfiability test checks, whether or not the evaluation of a query returns the empty set for any input document, and can be used in query optimization for avoiding the submis...
Jinghua Groppe, Sven Groppe
EDBT
2004
ACM
139views Database» more  EDBT 2004»
14 years 7 months ago
Efficient Distributed Skylining for Web Information Systems
Though skyline queries already have claimed their place in retrieval over central databases, their application in Web information systems up to now was impossible due to the distri...
Wolf-Tilo Balke, Ulrich Güntzer, Jason Xin Zh...
ACNS
2006
Springer
138views Cryptology» more  ACNS 2006»
13 years 11 months ago
Syntax-Driven Private Evaluation of Quantified Membership Queries
Abstract. Membership queries are basic predicate operations that apply to datasets. Quantifications of such queries express global properties between datasets, including subset inc...
Aggelos Kiayias, Antonina Mitrofanova
VLDB
2004
ACM
98views Database» more  VLDB 2004»
14 years 23 days ago
Top-k Query Evaluation with Probabilistic Guarantees
Top-k queries based on ranking elements of multidimensional datasets are a fundamental building block for many kinds of information discovery. The best known general-purpose algor...
Martin Theobald, Gerhard Weikum, Ralf Schenkel
SIGMOD
2004
ACM
119views Database» more  SIGMOD 2004»
14 years 7 months ago
Lazy Query Evaluation for Active XML
In this paper, we study query evaluation on Active XML documents (AXML for short), a new generation of XML documents that has recently gained popularity. AXML documents are XML do...
Serge Abiteboul, Omar Benjelloun, Bogdan Cautis, I...