1 March: DCLRS - Fintan Costello - Friday 3 March, 4pm, UCD]
Dublin Computational Linguistics Research Seminar: Index of March 2006 | Dublin Computational Linguistics Research Seminar - Index of year: 2006 | Full index
The next Computational Linguistics Research Seminar will feature a
talk by Dr Fintan Costello, of UCD School of Computer Science and
Informatics.
The seminar will take place
- on Friday March 3,
- at 4pm
- in Room B1.09
- in UCD's School of Computer Science and Informatics, Belfield Campus,
( on the map at http://www.ucd.ie/maps/campusmap05.jpg we are
building "22" an inch
to the left of the topleft corner of the central lake)
All are welcome to attend.
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Title:
Using WordNet to Automatically Deduce Relations between Words in Noun-
Noun Compounds.
Abstract:
In this talk I describe an algorithm for automatically disambiguating
noun-noun compounds by deducing the correct semantic relation between
their constituent words. This algorithm uses a corpus of 2500
compounds, each compound annotated with WordNet senses and covering
139 different semantic relations. The algorithm takes as input the
WordNet senses for the nouns in a compound, finds all parent senses
(hypernyms) of those senses, and searches the corpus for other
compounds containing any pair of those senses. The relation with the
highest proportional co-occurrence with any sense pair is returned as
the correct relation for the compound. This algorithm was tested
using a 'leave-one-out' procedure on the corpus of compounds. The
algorithm identified the correct relations for compounds with high
precision: in 92\% of cases where a relation was found with a
proportional co-occurrence of 1.0, it was the correct relation for the
compound being disambiguated.
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The support for DCLRS2005-6 given by the School of Computer Science and
Informatics, UCD Dublin,
is gratefully acknowledged.
Dublin Computational Linguistics Research Seminar - Index of March 2006 | Index of year: 2006 | Full index