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The Role of Syntax in Vector Space Models of Compositional Semantics

Oxford University Research Archive (ORA) (University of Oxford)Published 1 August 2013Open access
Karl Moritz Hermann, Phil Blunsom
Citations158
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TL;DR

This model leverages the CCG combinatory operators to guide a non-linear transformation of meaning within a sentence and is used to learn high dimensional embeddings for sentences and evaluate them in a range of tasks, demonstrating that the incorporation of syntax allows a concise model to learn representations that are both effective and general.

Abstract

Modelling the compositional process by which the meaning of an utterance arises from the meaning of its parts is a fundamental task of Natural Language Processing.In this paper we draw upon recent advances in the learning of vector space representations of sentential semantics and the transparent interface between syntax and semantics provided by Combinatory Categorial Grammar to introduce Combinatory Categorial Autoencoders.This model leverages the CCG combinatory operators to guide a non-linear transformation of meaning within a sentence.We use this model to learn high dimensional embeddings for sentences and evaluate them in a range of tasks, demonstrating that the incorporation of syntax allows a concise model to learn representations that are both effective and general.

Keywords

Computer Science