A* CCG Parsing with a Supertag and Dependency Factored Model

Masashi Yoshikawa; Hiroshi Noji; Yuji Matsumoto

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arXiv · 1704.06936

A* CCG Parsing with a Supertag and Dependency Factored Model

Masashi Yoshikawa·Hiroshi Noji·Yuji Matsumoto

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Abstract

We propose a new A* CCG parsing model in which the probability of a tree is decomposed into factors of CCG categories and its syntactic dependencies both defined on bi-directional LSTMs. Our factored model allows the precomputation of all probabilities and runs very efficiently, while modeling sentence structures explicitly via dependencies. Our model achieves the state-of-the-art results on English and Japanese CCG parsing.

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Masashi Yoshikawa, Hiroshi Noji, Yuji Matsumoto. 2017-04-23. A* CCG Parsing with a Supertag and Dependency Factored Model. https://arxiv.org/abs/1704.06936

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