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» Query Containment for Data Integration Systems
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ISMIS
2000
Springer
13 years 11 months ago
Extended Query Answering Using Integrity Rules
Abstract. The conventional use of databases is commonly restricted to the retrieval of factual data in the form of tuples or records. However most databases also contain metadata i...
Barry G. T. Lowden, Jerome Robinson
DIWEB
2001
13 years 8 months ago
Integration of XML Data in XPathLog
XPathLog is a logic-based language for manipulating and integrating XML data. It extends the XPath query language with Prolog-style variables. Due to the close relationship with X...
Wolfgang May
CIKM
2008
Springer
13 years 9 months ago
Towards privacy-preserving integration of distributed heterogeneous data
More and more applications rely heavily on large amounts of data in the distributed storages collected over time or produced by large scale scientific experiments or simulations. ...
Pawel Jurczyk, Li Xiong
ICDE
2006
IEEE
119views Database» more  ICDE 2006»
14 years 8 months ago
Laws for Rewriting Queries Containing Division Operators
Relational division, also known as small divide, is a derived operator of the relational algebra that realizes a many-to-one set containment test, where a set is represented as a ...
Ralf Rantzau, Christoph Mangold
PVLDB
2010
219views more  PVLDB 2010»
13 years 5 months ago
Deep Web Integration with VisQI
In this paper, we present VisQI (VISual Query interface Integration system), a Deep Web integration system. VisQI is capable of (1) transforming Web query interfaces into hierarch...
Thomas Kabisch, Eduard Constantin Dragut, Clement ...