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{
    "pk": 25515,
    "title": "What causes category-shifting in human semi-supervised learning",
    "subtitle": null,
    "abstract": "In a categorization task involving both labeled and unlabeled\ndata, it has been shown that humans make use of the underlying\ndistribution of the unlabeled examples. It has also been shown\nthat humans are sensitive to shifts in this distribution, and will\nchange predicted classifications based on these shifts. It is not\nimmediately obvious what causes these shifts – what specific\nproperties of these distributions humans are sensitive to. Assuming\na parametric model of human categorization learning,\nwe can ask which parameters or sets of parameters humans fix\nafter exposure to labeled data and which are adjustable to fit\nsubsequent unlabeled data. We formulate models to describe\ndifferent parameter sets which humans may be sensitive to and\na dataset which optimally discriminates among these models.\nExperimental results indicate that humans are sensitive to all\nparameters, with the closest model fit being an unconstrained\nversion of semi-supervised learning using expectation maximization.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "Categorization; Semi-Supervised Learning; Cognitive\nModeling"
        }
    ],
    "section": "Papers",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/9h30q7w9",
    "frozenauthors": [
        {
            "first_name": "Bryan",
            "middle_name": "R",
            "last_name": "Gibson",
            "name_suffix": "",
            "institution": "University of Wisconsin-Madison",
            "department": ""
        },
        {
            "first_name": "Timothy",
            "middle_name": "T",
            "last_name": "Rogers",
            "name_suffix": "",
            "institution": "University of Wisconsin-Madison",
            "department": ""
        },
        {
            "first_name": "Kalish",
            "middle_name": "W",
            "last_name": "Chuck",
            "name_suffix": "",
            "institution": "University of Wisconsin-Madison",
            "department": ""
        },
        {
            "first_name": "Xiaojin",
            "middle_name": "",
            "last_name": "Zhu",
            "name_suffix": "",
            "institution": "University of Wisconsin-Madison",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2015-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/25515/galley/15139/download/"
        }
    ]
}