On the relationship between lexical semantics and syntax for the inference of context-free grammars
AAAI'04 Proceedings of the 19th national conference on Artifical intelligence
Automatic evaluation of text coherence: models and representations
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
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A system able to interpret coherence of multiple sequential foci, while disambiguating multiple meanings of representations arising in the context, is exposed in this article. In the e.g., [I disliked in my childhood the bitterness of green peppers, it tastes delicious now.], identifying which of "dislike" or "delicious" is the main meaning, evaluation, among these sentences is necessary. Also detecting the antecedent of "it", an anaphor, is as well indispensable for interpreting accurately the knowledge representation expressed in this contextual sentence. In the following example, having a "big heart" (a tolerant mind), "big" is usually understood as a quality, whereas in the expression "big words", it has rather a pejorative connotation. To resolve such ambiguity, this system achieves an accurate contextual analysis, by identifying compositionally the overall role relations between words. For the determination of the evaluation polarity, in a corpus composed of 2500 customer reviews, the correct answer rate is 75.0%.