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What and Who
Title:Processing Levels in Discourse Understanding and Generation
Speaker:Michael Strube
coming from:European Media Lab Heidelberg
Speakers Bio:
Event Type:Computerlinguistisches Kolloquium
Visibility:D1, D2, D3, D4
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Level:Expert Audience
Language:
Date, Time and Location
Date:Thursday, 5 July 2001
Time:16:15
Duration:-- Not specified --
Location:Saarbr├╝cken
Building:17.3 - Computerlinguistik
Room:Seminarraum
Abstract
Since the late 70's focus-based approaches were proposed as a theoretical alternative to heuristic approaches in discourse processing, e.g., anaphora resolution. Though there was some effort to apply focus-based approaches to naturally occurring discourse, it could not be shown that focus-based algorithms produce better results than heuristics with respect to anaphora resolution. In this talk, I show that the attempts to apply focus-based approaches were not successful because of the lack of the most crucial definitions: the definitions of the basic units of analysis. Based on linguistic evidence I provide definitions for the update and the clean-up unit which replace the (undefined) notion of utterance used, e.g., in the centering model. These definitions are the foundation of a new model of attentional state which narrows the gap between focus-based models and heuristics by combining the positive aspects of both kinds of approaches.

Literature:

Michael Strube (1998). Never Look Back: An Alternative to Centering.
In COLING-ACL '98 (pp. 1251-1257).


If you would like to meet with the speaker, please contact:

Kristina Striegnitz

Contact
Name(s):Kristina Striegnitz
EMail:--email address not disclosed on the web
Video Broadcast
Video Broadcast:NoTo Location:
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  • Uwe Brahm, 04/12/2007 12:11 PM -- Created document.