Entailment above the word level in distributional semantics 论文

摘要

We introduce two ways to detect entail-ment using distributional semantic repre-sentations of phrases. Our first experiment shows that the entailment relation between adjective-noun constructions and their head nouns (big cat | = cat), once represented as semantic vector pairs, generalizes to lexical entailment among nouns (dog | = animal). Our second experiment shows that a classi-fier fed semantic vector pairs can similarly generalize the entailment relation among quantifier phrases (many dogs|=some dogs) to entailment involving unseen quantifiers (all cats|=several cats). Moreover, nominal and quantifier phrase entailment appears to be cued by different distributional corre-lates, as predicted by the type-based view of entailment in formal semantics. 1