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{
    "pk": 29749,
    "title": "Encoder-Decoder Neural Architectures for Fast Amortized Inference of CognitiveProcess Models",
    "subtitle": null,
    "abstract": "Computational cognitive modeling offers a principled inter-pretation of the functional demands of cognitive systems andaffords quantitative fits to behavioral/brain data. Typically,cognitive modelers are interested in the fit of a model withparameters estimated using maximum likelihood or Bayesianmethods. However, the set of models with known likeli-hoods is dramatically smaller than the set of plausible gen-erative models. For all but some standard models (e.g., thedrift-diffusion model), lack of closed-form likelihoods typi-cally prevents using traditional Bayesian inference methods.Employing likelihood-free methods is a workaround in prac-tice. However, the computational complexity of these methodsis a bottleneck, since it requires many simulations for each pro-posed parameter set in posterior sampling schemes. Here, wepropose a method that learns an approximate likelihood overthe parameter space of interest by encapsulation into a convo-lutional neural network, affording fast parallel posterior sam-pling downstream after a one-off simulation cost is incurredfor training.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "Likelihood-free inference; Approximate BayesianComputation; ABC; Importance Sampling; Bayesian Infer-ence; Neural Networks; GPU; Parallel Computing; CognitiveProcess Models."
        }
    ],
    "section": "Poster Session 2",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/0kz3f94z",
    "frozenauthors": [
        {
            "first_name": "Alexander",
            "middle_name": "",
            "last_name": "Fengler",
            "name_suffix": "",
            "institution": "Brown University",
            "department": ""
        },
        {
            "first_name": "Lakshmi",
            "middle_name": "Narasimhan",
            "last_name": "Govindarajan",
            "name_suffix": "",
            "institution": "Brown University",
            "department": ""
        },
        {
            "first_name": "Michael",
            "middle_name": "J.",
            "last_name": "Frank",
            "name_suffix": "",
            "institution": "Brown University",
            "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/29749/galley/19605/download/"
        }
    ]
}