Transformation and alignment in similarity

Hodgetts, C.J. and Hahn, Ulrike and Chater, N. (2009) Transformation and alignment in similarity. Cognition 113 (1), pp. 62-79. ISSN 0010-0277.

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Official URL: http://dx.doi.org/10.1016/j.cognition.2009.07.010

Abstract

This paper contrasts two structural accounts of psychological similarity: structural alignment (SA) and Representational Distortion (RD). SA proposes that similarity is determined by how readily the structures of two objects can be brought into alignment; RD measures similarity by the complexity of the transformation that “distorts” one representation into the other. We assess RD by defining a simple coding scheme of psychological transformations for the experimental materials. In two experiments, this “concrete” version of RD provides compelling fits of the data and compares favourably with SA. Finally, stepping back from particular models, we argue that perceptual theory suggests that transformations and alignment processes should generally be viewed as complementary, in contrast to the current distinction in the literature.

Metadata

Item Type:	Article
Keyword(s) / Subject(s):	Similarity, Transformation, Structural alignment, Mapping, Representations, Feature binding
School:	Birkbeck Schools and Departments > School of Science > Psychological Sciences
Research Centre:	Birkbeck Knowledge Lab
Depositing User:	Administrator
Date Deposited:	09 May 2013 09:32
Last Modified:	02 Dec 2016 13:39
URI:	http://eprints.bbk.ac.uk/id/eprint/6624

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