Natural Language for Knowledge Acquisition: Learning from Definite Anaphora
Lucja Iwafiska, Kellyn Kruger · 1996
We investigate grammatical inference algorithms capable of automatically acquiring context-free grammars and grammars with limited context-sensitivity that approximate formal problem of distinguishing English referring and non-referring definite noun phrases. Definite noun phrases are those noun phrases that start with determiner the. In following short text: A clog was found in our backyard. The animal was dirty, but happy. We contacted Humane Society. there are two definite noun phrases: the dog and the Humane Society; first one is referring definite noun phraseits antecedent, a dog, is explicit in text; second noun phrase, the Humane Society, is non-referring onethe text does not contain any explicit expression to which this noun phrase refers to 1.