THK's Natural Logic-based Compositional Textual Entailment Model at NTCIR-10 RITE-2.
Yotaro Watanabe, Junta Mizuno, Kentaro Inui · NTCIR · 2013
Equivalence (couch ≡ sofa) Forward-ent. (crow ⊂ bird) Backward-ent. (bird ⊃ crow) Negation (human ^ non-human) Alternation (dog | cat) Cover (animal ∪ non-human) Independence (hungry # hippo) u Originally proposed by [MacCartney and Manning 2008] u Assumption: the entailments of a compound expression are a function of the entailments of its parts (compositionality) u A transformation from T to H represents a decomposition of its parts and is represented by a set of alignment edits (insertion, deletion and substitution) u Sentence-level semantic relations are inferred from semantic relations of alignment edits