Computer Science Colloquium
Time+Place : Tuesday 24/04/2012 14:30 room 337-8 Taub  Bld.
Speaker    : Eugene Agichtein
Affiliation: Mathematics and Computer Dcience Dept., Emory Univeristy
Host       : Shaul Markovitch
Title      : Extracting Meaning from Search Behavior Data
Abstract   :
A key challenge in Web search is inferring the intent behind a search query.
But, the actual query words provide only a narrow glimpse into the searcher
intent. This talk will show how search could be made substantially more
effective by mining searchers interactions and behavior data. For example,
knowing which results or document regions attract the searchers attention,
can help automatically expand the query to be more effective, or to indicate
how well a result answers the query. Previously, this kind of analysis was
only possible in the laboratory setting, severely limiting the scale and the
impact of the possible studies. To address this problem, we developed a
variety of techniques to acquire, analyze, and mine rich search behavior
data. For example, capturing and analyzing the patterns of cursor movement
and scrolling makes it possible to infer the searchers attention and
interests, enabling improvements to ranking, personalization, and precise
analysis of result quality and search effectiveness, at scale.
If time permits, I will also describe our current work on applications of
these techniques to cognitive psychology and neuroscience.
Eugene Agichtein is an Assistant Professor in the Mathematics & Computer
Science department at Emory University, where he founded and leads the Emory
Intelligent Information Access Laboratory (IR Lab). The active projects in
IR Lab include mining searcher behavior and interactions data for improving
web search, modeling social content creation and sharing, large-scale text
mining and information extraction, and applications to medical informatics.
Eugene obtained a Ph.D. in Computer Science from Columbia University, and
did a Postdoc at Microsoft Research. He has published extensively on web
search, information retrieval, and web and data mining, and has been honored
with the Sloan Research Fellowship, DARPA CSSG Fellowship, and Best Paper
awards at the SIGMOD 2006 and SIGIR 2011 conferences. Eugene's webpage is
at:  <>
Refreshments served from 14:15 on,
 	Lecture starts at 14:30
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Technion Math. Net (TECHMATH)
Editor: Michael Cwikel   <> 
Announcement from: Hadas Heier   <>