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{
    "pk": 26933,
    "title": "A Rational Constructivist Account of the Characteristic-to-Defining Shift",
    "subtitle": null,
    "abstract": "A widely observed phenomenon in children’s word-extensionsand generalizations is the characteristic-to-defining shift,whereby young children initially generalize words based ontypical properties and gradually transition into generalizingwords using abstract, logical information. In this paper, wepropose a statistically principled model of conceptual devel-opment grounded in the trade-off between simplicity and fit tothe data. We run our model based on informant-provided fam-ily trees and the real-life characteristic features of people onthose trees. We demonstrate that the characteristic-to-definingshift does not necessarily depend on discrete change in rep-resentation or processes. Instead, the shift could fall out nat-urally from statistical inference over conceptual hypotheses.Our model finds that the shift occurs even when abstract logicalrelations are present from the outset of learning as long as char-acteristic features are informative but imperfect in their abilityto capture the underlying concept to be learned—a property ofour elicited features.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "characteristic-to-defining shift; concept learning;development; computational modeling"
        }
    ],
    "section": "Talks: Papers",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/86h0b8bd",
    "frozenauthors": [
        {
            "first_name": "Francis",
            "middle_name": "",
            "last_name": "Mollica",
            "name_suffix": "",
            "institution": "University of Rochester",
            "department": ""
        },
        {
            "first_name": "Shirlene",
            "middle_name": "",
            "last_name": "Wade",
            "name_suffix": "",
            "institution": "University of Rochester",
            "department": ""
        },
        {
            "first_name": "Steven",
            "middle_name": "T.",
            "last_name": "Piantadosi",
            "name_suffix": "",
            "institution": "University of Rochester",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2017-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/26933/galley/16569/download/"
        }
    ]
}