[Corpora-List] CLI Seminar on Anaphora Resolution, R. Mitkov and F. Cornish, LIPN (Villetaneuse, France)

[Thierry Poibeau]

Laboratoire d'Informatique de Paris-Nord
                             Institut Galilee

            "Knowledge, Language and Computer Science" Seminar Series

                Ruslan Mitkov *   -   Francis Cornish **

  * University of Wolverhampton, UK, http://pers-www.wlv.ac.uk/~le1825/
 ** University of Toulouse-Le Mirail,
http://w3.univ-tlse2.fr:8880/erss/index.jsp?perso=cornish&subURL=index.html

           *** Anaphora Resolution: Theory and Applications ***
                  
                   Tuesday 11 December, 2007, from 2pm to 5pm

                         University Paris 13
                      Amphi D, LIPN, Institut Galilee
                         Campus de Villetaneuse
              http://www-lipn.univ-paris13.fr/~poibeau/CLI/


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Abstracts:


Francis Cornish
Anaphora: Text-based, or Discourse-Dependent?

The traditional definition of anaphora in purely co-textual terms as a relation
between two co-occurring expressions is still in wide currency in studies of
the phenomenon. Under this conception, the anaphor, a referentially-dependent
expression type, requires "saturation" by an appropriate fully autonomous,
lexically-based expression, the antecedent, in order to achieve full sense and
reference. However, this definition needs to be re-examined in the light of the
ways in which real texts operate and are understood, where the resulting picture
is rather different. This is my major goal in the talk to be presented.
The talk will start by characterizing two opposing approaches to the study of
anaphora as well as deixis -- the textualists’ and the
discourse-functionalists’ -- and will go on to develop a discourse-functional
approach to both of these discourse-referring procedures, arguing for its
validity. I aim to show that it is only in terms of a dynamic interaction
amongst the complementary dimensions of text and discourse, as well as context,
that the true complexity of anaphoric reference may be satisfactorily described.


Ruslan Mitkov
Anaphora Resolution: To what Extent Does it Help NLP Applications?

Research in anaphora resolution has focused almost exclusively on the intrinsic
evaluation of the algorithm/system and not on the issue of extrinsic
evaluation. In the context of anaphora resolution, extrinsic evaluation is
concerned with the impact of an anaphora resolution module on a larger NLP
system of which it is part. In this presentation I shall discuss whether the
well-known anaphora resolution system MARS (Mitkov et al. 2002) can improve
(and if it can, to what extent?) or not the performance of three NLP
applications: text summarisation, term extraction and text categorisation.


-------

Thierry Poibeau
http://www-lipn.univ-paris13.fr/~poibeau/


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