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Publication . Article . Other literature type . 2019

Re-Representing Metaphor: Modelling metaphor perception using dynamically contextual distributional semantics

Modeling metaphor perception using dynamically contextual distributional semantics
Stephen McGregor; Kat Agres; Karolina Rataj; Karolina Rataj; Matthew Purver; Geraint Wiggins; Geraint Wiggins;
Open Access
English
Published: 15 Apr 2019
Publisher: Frontiers Media S.A.
Abstract
In this paper, we present a novel context-dependent approach to modeling word meaning, and apply it to the modeling of metaphor. In distributional semantic approaches, words are represented as points in a high dimensional space generated from co-occurrence statistics; the distances between points may then be used to quantifying semantic relationships. Contrary to other approaches which use static, global representations, our approach discovers contextualized representations by dynamically projecting low-dimensional subspaces; in these ad hoc spaces, words can be re-represented in an open-ended assortment of geometrical and conceptual configurations as appropriate for particular contexts. We hypothesize that this context-specific re-representation enables a more effective model of the semantics of metaphor than standard static approaches. We test this hypothesis on a dataset of English word dyads rated for degrees of metaphoricity, meaningfulness, and familiarity by human participants. We demonstrate that our model captures these ratings more effectively than a state-of-the-art static model, and does so via the amount of contextualizing work inherent in the re-representational process.
Subjects by Vocabulary

Microsoft Academic Graph classification: Distributional semantics Metaphor media_common.quotation_subject media_common Natural language processing computer.software_genre computer Psychology Word (computer architecture) Computational creativity Perception Artificial intelligence business.industry business Computational linguistics Space (commercial competition) Semantics

Library of Congress Subject Headings: lcsh:Psychology lcsh:BF1-990

Subjects

General Psychology, Psychology, Original Research, distributional semantics, metaphor, conceptual models, computational creativity, vector space models, computational linguistics

61 references, page 1 of 7

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Funded by
CHIST-ERA| ATLANTIS
Project
ATLANTIS
ArTificial Language uNdersTanding In robotS
  • Funder: CHIST-ERA (CHIST-ERA)
  • Project Code: ATLANTIS
,
EC| EMBEDDIA
Project
EMBEDDIA
Cross-Lingual Embeddings for Less-Represented Languages in European News Media
  • Funder: European Commission (EC)
  • Project Code: 825153
  • Funding stream: H2020 | RIA
Validated by funder
,
UKRI| DTA - Queen Mary, University of London
Project
  • Funder: UK Research and Innovation (UKRI)
  • Project Code: EP/L50483X/1
  • Funding stream: EPSRC
,
EC| CONCRETE
Project
CONCRETE
Concept Creation Technology
  • Funder: European Commission (EC)
  • Project Code: 611733
  • Funding stream: FP7 | SP1 | ICT
Related to Research communities
Digital Humanities and Cultural Heritage
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