Article Instance

HTTP 200 OK
Allow: GET
Content-Type: application/json
Vary: Accept

{
    "pk": 26124,
    "title": "A neural network model of hierarchical category development",
    "subtitle": null,
    "abstract": "Object recognition and categorization is a fundamental aspectof cognition in humans and animals. Models have been imple-mented around the idea that categories are sets of frequentlyco-occurring features. Out of these models a question has beenraised, namely what is the mechanism by which we learn a hi-erarchically organized set of categories, including types andsubtypes? In this paper we introduce such a model, the Domi-nant Property Assembly Network (DPAN). DPAN uses an un-supervised neural network to model an agent which developsa hierarchy of object categories based on highly correlated ob-ject features. Initially, the network generates representations ofhigh-level object types by identifying commonly co-occurringsets of features. Over time, the network will start to use aninhibition of return (IOR) operation to examine the featuresof a categorized object that make it unusual as an instance ofits identified category. The result is a network which, earlyin training, represents classes of objects using coarse-grainedcategories and recognizes objects as members of these generalclasses, but eventually is able to recognize subtle differencesbetween subtypes of objects within the broad classes, and rep-resent objects using these more fine-grained categories.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "categorization; computational modeling; proto-type theory"
        }
    ],
    "section": "Papers",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/64d3p4vv",
    "frozenauthors": [
        {
            "first_name": "Chris",
            "middle_name": "",
            "last_name": "Gorman",
            "name_suffix": "",
            "institution": "University of Otago",
            "department": ""
        },
        {
            "first_name": "Alistair",
            "middle_name": "",
            "last_name": "Knott",
            "name_suffix": "",
            "institution": "University of Otago",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2016-01-01T13:00:00-05:00",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/26124/galley/15760/download/"
        }
    ]
}