[Colloquium] TTIC Talks: Katrin Kirchhoff, University of Washinton, Seattle

[Liv Leader]

When:     *Monday, April 11 @ 11*

Where:    *TTIC Conference Room #526*, 6045 S. Kenwood Ave, 5th Floor

Who:     * Katrin Kirchhoff*, University of Washinton, Seattle

Title:      *Semi-supervised and unsupervised graph-based learning for
natural language processing*

The lack of labeled data is one of the key problems in many current
natural language processing tasks. Semi-supervised and unsupervised
learning techniques have been explored as alternatives to
fully-supervised learning; however, most techniques concentrate on
classification problems as opposed to learning preferences or
structured outputs that characterize a large class of natural language
problems. This talk presents recent work on adapting semi-supervised
and unsupervised learning schemes to non-classification problems in
natural language processing. Techniques that will be discussed include
discovering better feature representations from unlabeled data,
graph-based semi-supervised ranking, and constrained unsupervised
ranking. Experimental results will be presented on applications in
information retrieval, machine translation of spoken dialogues,
and machine translation of multi-party meeting conversations.

Host: David McAllester, mcallester at ttic.edu

-- 
Liv Leader
Faculty Services

Toyota Technological Institute
6045 S Kenwood Ave, #504
Chicago, IL 60637
Phone- (773) 834-2567
Fax-     (773) 834-9881
Email-  lleader at ttic.edu <jam at ttic.edu>
Web-   www.ttic.edu
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