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{
    "pk": 29709,
    "title": "Integrating semantics into developmental models of morphology learning",
    "subtitle": null,
    "abstract": "A key challenge in language acquisition is learning morpho-logical transforms relating word roots to derived forms. Tra-ditional unsupervised algorithms find morphological patternsin sequences of phonemes, but struggle to distinguish validsegmentations from spurious ones because they ignore mean-ing. For example, a system that correctly discovers ”add /z/”as a valid morphological transform (song-songs, year-years)might incorrectly infer that ”add /ah.t/” is also valid (mark-market, spear-spirit). We propose that learners could avoidthese errors with a simple semantic assumption: morpholog-ical transforms approximately preserve meaning. We extendan algorithm from Chan and Yang (2008) by integrating prox-imity in vector-space word embeddings as a criterion for validtransforms. On a corpus of child-directed speech, we achieveboth higher accuracy and broader coverage than the purelyphonemic approach, even in more developmentally plausiblelearning paradigms. Finally, we consider a deeper semanticassumption that could guide the acquisition of more abstract,human-like morphological understanding.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "Language Acquisition"
        },
        {
            "word": "morphology"
        },
        {
            "word": "development"
        },
        {
            "word": "semantics."
        }
    ],
    "section": "Poster Session 1",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/93c3f5gh",
    "frozenauthors": [
        {
            "first_name": "Abigail",
            "middle_name": "L.",
            "last_name": "Tenenbaum",
            "name_suffix": "",
            "institution": "MIT",
            "department": ""
        },
        {
            "first_name": "Mika",
            "middle_name": "",
            "last_name": "Braginsky",
            "name_suffix": "",
            "institution": "MIT",
            "department": ""
        },
        {
            "first_name": "Roger",
            "middle_name": "P.",
            "last_name": "Levy",
            "name_suffix": "",
            "institution": "MIT",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2020-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/29709/galley/19566/download/"
        }
    ]
}