Riloff Visit
Raymond Mooney
up to meet her. As usual, it would be good if those in the Ling dept take a
contiguous block.
Faculty: please let me know if you want to join dinner either
Thurs (he flight arrives about 6PM) or Fri evening and feel free to sign up
for lunch.
Thanks!
-Ray
---------
Speaker Name: Ellen Riloff
University of Utah
Date: Friday, March 4, 2011
Time: 11:00 am
Location: ACES 2.402
Host: Raymond J. Mooney
Talk Title: Adventures in Bootstrapping: Acquiring Lexical Knowledge for
NLP
Talk Abstract:
Understanding natural language requires many types of lexical
knowledge. Some lexical resources have been created (e.g.,
WordNet and FrameNet), but they are far from complete and
they are rarely sufficient for informal jargon or specialized
domains. Starting in 1997, the Utah NLP lab has been developing
bootstrapping techniques to automatically acquire lexical
knowledge from unannotated text collections. We have created
several bootstrapping algorithms to induce semantic lexicons,
as well as resources for subjectivity classification, event
extraction, and plot unit analysis. Most recently, we used
bootstrapping to create a contextual semantic tagger, given
only seed words and domain-specific texts for training. In
this talk, we will overview the bootstrapping methods that
we have developed and try to distill out general lessons we
have learned about what it takes to make bootstrapping work.
Speaker Bio:
Ellen Riloff is an Associate Professor of Computer Science
in the School of Computing at the University of Utah. Her
primary research areas are information extraction, semantic
tagging and lexicon induction, coreference resolution, and
subjectivity analysis. A major emphasis of her research has
been automatically acquiring knowledge needed for natural
language processing using bootstrapping methods that can learn
from unannotated texts with minimal human supervision. Her
professional roles have included service on the NAACL Executive
Board, Human Language Technology (HLT) Advisory Board,
DARPA/NSF Question Answering Roadmap Committee, Computational
Linguistics Editorial Board, and as CoNLL Program Co-Chair
and Faculty Advisor for the ACL Student Research Workshop.
-------
Raymond J. Mooney Title: Professor
Department of Computer Science Phone: (512) 471-9558
University of Texas at Austin Fax: (512) 471-8885
1616 Guadalupe, Suite 2.408 E-mail: moo...@cs.utexas.edu
Austin, TX 78701 WWW: http://www.cs.utexas.edu/users/mooney
USA