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{
    "pk": 29728,
    "title": "Reinforcement of Semantic Representations in Pragmatic Agents Leads to theEmergence of a Mutual Exclusivity Bias",
    "subtitle": null,
    "abstract": "We present a novel framework for building pragmatic artificialagents with explicit and trainable semantic representations, us-ing the Rational Speech Act model. We train our agents onsupervised and unsupervised communication games and com-pare their behavior to literal agents lacking pragmatic abilities.For both types of games pragmatic but not literal agents evolvea mutual exclusivity bias. This provides a computational prag-matic account of mutual exclusivity and points out a possi-ble direction for solving the mutual exclusivity bias challengeposed by Gandhi and Lake (2019). We find that pragmaticreasoning can cause the bias either by promoting lexical con-straints during learning, or by affecting online inference. In ad-dition we show that pragmatic abilities lead to faster learningand that this advantage is even stronger when meanings to becommunicated follow a more natural distribution as describedby Zipf’s law.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "mutual exclusivity; reinforcement learning; Ratio-nal Speech Act model; gradient-based learning"
        }
    ],
    "section": "Poster Session 2",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/7rh0d52r",
    "frozenauthors": [
        {
            "first_name": "Xenia",
            "middle_name": "",
            "last_name": "Ohmer",
            "name_suffix": "",
            "institution": "University of Osnabrueck",
            "department": ""
        },
        {
            "first_name": "Peter",
            "middle_name": "",
            "last_name": "Konig",
            "name_suffix": "",
            "institution": "University of Osnabrueck",
            "department": ""
        },
        {
            "first_name": "Michael",
            "middle_name": "",
            "last_name": "Franke",
            "name_suffix": "",
            "institution": "University of Osnabrueck",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2020-01-01T10:00:00-08:00",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/29728/galley/19585/download/"
        }
    ]
}