What Users Want in XML Keyword Search

Speaker:	Dr. Yi Chen
		Assistant Professor
		Department of Computer Science and Engineering
		Arizona State University

Title:		"What Users Want in XML Keyword Search"

Date:		Monday, 14 May 2007

Time:		4:00pm - 5:00pm

Venue:		Lecture Theatre F
		(Leung Yat Sing Lecture Theatre, near lift nos. 25/26)
		HKUST

Abstract:

Keyword search is a user-friendly mechanism for accessing XML data on the
web, when a user does not know structured query languages, such as XPath,
XQuery, or the data schema is unavailable, complex, or fast-evolving. We
identify two challenges in searching XML data by keywords. First, we need
to select qualified data nodes that match keywords and connect them in a
meaningful way, in the spirit of inferring a "where" clause in XQuery.
Second, relevant data nodes need to be identified as query results, in the
spirit of inferring the "return" clause in XQuery. We present XSeek, a
semantic keyword search engine for XML data, which effectively addresses
both challenges.


***********************
Biography:

Yi Chen is an assistant professor in the Department of Computer Science
and Engineering at Arizona State University. She received her Ph.D degree
in Computer Science from the University of Pennsylvania in 2005.

Her research interests include query evaluation and optimization
techniques for database systems and data streams, data integration in the
presence of uncertainty and incompleteness, data model and query language
design, and scientific data management.

For more information, please refer to her home page
http://www.public.asu.edu/~ychen127/