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Summary: Discovering Authorities in Question Answer Communities
by Using Link Analysis
Pawel Jurczyk
Department of Mathematics and Computer Science
Emory University
pjurczy@emory.edu
Eugene Agichtein
Department of Mathematics and Computer Science
Emory University
eugene@mathcs.emory.edu
ABSTRACT
Question-Answer portals such as Naver and Yahoo! Answers are
quickly becoming rich sources of knowledge on many topics
which are not well served by general web search engines.
Unfortunately, the quality of the submitted answers is uneven,
ranging from excellent detailed answers to snappy and insulting
remarks or even advertisements for commercial content.
Furthermore, user feedback for many topics is sparse, and can be
insufficient to reliably identify good answers from the bad ones.
Hence, estimating the authority of users is a crucial task for this
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