486 search results - page 54 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
132
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SIGMOD
2004
ACM
16 years 1 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
136
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VLDB
2010
ACM
14 years 12 months ago
2010
ACM
According to the database outsourcing model, a data owner delegates database functionality to a thirdparty service provider, which answers queries received from clients. Authentic...
119
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EDBT
2011
ACM
14 years 5 months ago
2011
ACM
We demonstrate Habitat, a declarative observational debugger for SQL. Habitat facilitates true language-level (not: plan-level) debugging of, probably flawed, SQL queries that yi...
124
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CNL
2009
15 years 2 months ago
2009
Abstract. As it is well-known, querying and managing structured data in natural language is a challenging task due to its ambiguity (syntactic and semantic) and its expressiveness....
139
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BTW
2007
Springer
15 years 7 months ago
2007
Springer
: Over the recent years, very little effort has been made to give XPath a proper algebraic treatment. The only laudable exception is the Natix Algebra (NAL) which defines the tran...