NLP Notes

Abstract

The CLaC Lab’s system for the PASCAL
RTE challenge explores the potential
of simple general heuristics and
a knowledge-poor approach for recognising
paraphrases, using NP coreference,
NP chunking, and two parsers
(RASP and Link) to produce Predicate
Argument Structures (PAS) for each of
the pair components. WordNet lexical
chains and a few specialised heuristics
are used to establish semantic similarity
between corresponding components
of the PAS from the pair. We discuss
the results and potential of this
approach.