Paper: A Quantum-Theoretic Approach to Distributional Semantics

ACL ID N13-1105
Title A Quantum-Theoretic Approach to Distributional Semantics
Venue Annual Conference of the North American Chapter of the Association for Computational Linguistics
Session Main Conference
Year 2013
Authors

In this paper we explore the potential of quantum theory as a formal framework for capturing lexical meaning. We present a novel semantic space model that is syntacti- cally aware, takes word order into account, and features key quantum aspects such as superposition and entanglement. We define a dependency-based Hilbert space and show how to represent the meaning of words by den- sity matrices that encode dependency neigh- borhoods. Experiments on word similarity and association reveal that our model achieves results competitive with a variety of classical models.