A proof-theoretic approach to scope ambiguity in compositional vector space models

Authors

  • Gijs Wijnholds Queen Mary University of London

Keywords:

proof theory, scope ambiguity, compositional vector space models, bialgebra

Abstract

We investigate the extent to which compositional vector space models can be used to account for scope ambiguity in quantified sentences (of the form Every man loves some woman). Such sentences containing two quantifiers introduce two readings, a direct scope reading and an inverse scope reading. This ambiguity has been treated in a vector space model using bialgebras by Hedges and Sadrzadeh (2016) and Sadrzadeh (2016), though without an explanation of the mechanism by which the ambiguity arises. We combine a polarised focussed sequent calculus for the non-associative Lambek calculus NL, as described in Moortgat and Moot (2011), with the vector-based approach to quantifier scope ambiguity. In particular, we establish a procedure for obtaining a vector space model for quantifier scope ambiguity in a derivational way.

DOI:

https://doi.org/10.15398/jlm.v6i2.232

Full article

Published

2019-03-07

How to Cite

Wijnholds, G. (2019). A proof-theoretic approach to scope ambiguity in compositional vector space models. Journal of Language Modelling, 6(2), 261–286. https://doi.org/10.15398/jlm.v6i2.232