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Main Authors: Ji, Anya, Bergey, Claire Augusta, Eliav, Ron, Artzi, Yoav, Hawkins, Robert D.
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2509.05566
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author Ji, Anya
Bergey, Claire Augusta
Eliav, Ron
Artzi, Yoav
Hawkins, Robert D.
author_facet Ji, Anya
Bergey, Claire Augusta
Eliav, Ron
Artzi, Yoav
Hawkins, Robert D.
contents How do people talk about things they've never talked about before? One view suggests that a new shared naming system establishes an arbitrary link to a specific target, like proper names that cannot extend beyond their bearers. An alternative view proposes that forming a shared way of describing objects involves broader conceptual alignment, reshaping each individual's semantic space in ways that should generalize to new referents. We test these competing accounts in a dyadic communication study (N=302) leveraging the recently-released KiloGram dataset containing over 1,000 abstract tangram images. After pairs of participants coordinated on referential conventions for one set of images through repeated communication, we measured the extent to which their descriptions aligned for undiscussed images. We found strong evidence for generalization: partners showed increased alignment relative to their pre-test labels. Generalization also decayed nonlinearly with visual similarity (consistent with Shepard's law) and was robust across levels of the images' nameability. These findings suggest that ad hoc conventions are not arbitrary labels but reflect genuine conceptual coordination, with implications for theories of reference and the design of more adaptive language agents.
format Preprint
id arxiv_https___arxiv_org_abs_2509_05566
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Ad hoc conventions generalize to new referents
Ji, Anya
Bergey, Claire Augusta
Eliav, Ron
Artzi, Yoav
Hawkins, Robert D.
Computation and Language
Computers and Society
How do people talk about things they've never talked about before? One view suggests that a new shared naming system establishes an arbitrary link to a specific target, like proper names that cannot extend beyond their bearers. An alternative view proposes that forming a shared way of describing objects involves broader conceptual alignment, reshaping each individual's semantic space in ways that should generalize to new referents. We test these competing accounts in a dyadic communication study (N=302) leveraging the recently-released KiloGram dataset containing over 1,000 abstract tangram images. After pairs of participants coordinated on referential conventions for one set of images through repeated communication, we measured the extent to which their descriptions aligned for undiscussed images. We found strong evidence for generalization: partners showed increased alignment relative to their pre-test labels. Generalization also decayed nonlinearly with visual similarity (consistent with Shepard's law) and was robust across levels of the images' nameability. These findings suggest that ad hoc conventions are not arbitrary labels but reflect genuine conceptual coordination, with implications for theories of reference and the design of more adaptive language agents.
title Ad hoc conventions generalize to new referents
topic Computation and Language
Computers and Society
url https://arxiv.org/abs/2509.05566