UTCS Colloquium/AI: Renata Vieira UNISINOS Sao Leopoldo Brazil Have I mentioned it? ACES 2.402 Friday March 30 2007 at 2:00 p.m.
There is a signup schedule for this event.
Type of Talk:
Speaker Name/Affiliation: Renata Vieira/UNISIN
OS Sao Leopoldo Brazil
Date/Time: Friday March 30 2007 2:00
p.m. - 3:00 p.m.
Location: ACES 2.402
Host: Raymond Mooney<
Talk Title: Have I mentioned it?
ence resolution is a well known NLP task relevant for the more general tas
k of information extraction among others. A related problem is the problem
of identifying if a referring expression is introducing a new entity in th
e text or if it follows previously mentioned ones. Definite descriptions ar
e a type of referring expressions which are highly ambiguous between these
two roles. In fact they sometimes lie in between these two when mentioning
a new entity whose interpretation is anchored in given ones. When developi
ng a classifier that distinguishes between these many roles of definite des
criptions we face not only the old AI problem of grasping common sense and
world knowledge but also the problem of unbalanced data. In this talk I wil
l present some experiments dealing with these problems and I will mention s
ome NLP tasks that the classifier is useful for.
nata Vieira is Professor in the Computer Science Department at Universidade
do Vale do Rio dos Sinos Sao Leopoldo Brazil. She received her PhD from
the University of Edinburgh in 1998. Her research interests
s in computational linguistics artificial intelligence including natural
language understanding discourse processing agent communication
knowledge representation ontologies and the semantic web.
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