[ont.events] Recognizing Characters' Thoughts and Perceptions.

ylfink@water.waterloo.edu (ylfink) (02/13/89)

DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES

ARTIFICIAL INTELLIGENCE SEMINAR

                    -  Thursday, February 16, 1989

Dr.  Janyce  M.  Wiebe,  SUNY,  Buffalo, New York, will
speak   on   ``Recognizing   Characters'  Thoughts  and
Perceptions''.

TIME:                3:30 PM

ROOM:              DC 1304

ABSTRACT

This  research  is a computational investigation of how
readers  recognize characters' thoughts and perceptions
(subjective  sentences) in third-person narrative text.
Subjective sentences reveal the emotions, plans, goals,
and  beliefs  of  the  thinking or perceiving character
(the  subjective character), and so recognizing them is
essential  to  narrative  understanding.   The  problem
addressed   is  that  subjective  sentences  and  their
subjective   characters   are   often   not  explicitly
identified  in  the  text.  I will present an algorithm
that   decides   whether   the   current   sentence  is
subjective,  and,  if  so, who the subjective character
is,  from the features of the current sentence and from
what  came  before  in  the  text.   How  knowledge  is
acquired   from   references   about   the   subjective
character's beliefs will also be discussed.