The Web is causing a revolution in how we represent, retrieve, and process information Its
growth has given us a universally accessible database-but in the form of a largely …

Answering XML Queries over Heterogeneous Data Sources Page 1 "! & %(') 1 02 7%8! @
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XKeyword provides efficient keyword proximity queries on large XML graph databases. A
query is simply a list of keywords and does not require any schema or query language …

The present invention overcomes many of the Shortcom ings of the prior art. In addition, the
present invention addresses the problem of automating the conversion of relational data into …

XML has reached a widespread diffusion as a language for representing nearly any kind of
data source, from relational databases to digital movies. Due to the growing interest toward …

XML holds the promise to yield (1) a more precise search by providing additional information
in the elements,(2) a better integrated search of documents from heterogeneous sources,(3) …

XML is the W3C standard document format for writing and exchanging information on the
Web. RDF is the W3C standard model for describing the semantics and reasoning about …

Keyword search is a user-friendly approach for users to retrieve information from XML data.
Since an XML document can have a large size and contain a lot of information, an XML …

A lot of work is being done in the database community on map** of XML data into and out
of relational database systems, specifically, the query processing over such data using …

XML database systems emerge as a result of the acceptance of the XML data model. Recent
works have followed the promising approach of building XML database management …