Search Results for author: Ji Hyun Bak

Found 3 papers, 1 papers with code

Inferring learning rules from animal decision-making

1 code implementation NeurIPS 2020 Zoe Ashwood, Nicholas A. Roy, Ji Hyun Bak, Jonathan W. Pillow

Specifically, this allows us to: (i) compare different learning rules and objective functions that an animal may be using to update its policy; (ii) estimate distinct learning rates for different parameters of an animal’s policy; (iii) identify variations in learning across cohorts of animals; and (iv) uncover trial-to-trial changes that are not captured by normative learning rules.

Decision Making

Efficient inference for time-varying behavior during learning

no code implementations NeurIPS 2018 Nicholas G. Roy, Ji Hyun Bak, Athena Akrami, Carlos Brody, Jonathan W. Pillow

To overcome these limitations, we propose a dynamic psychophysical model that efficiently tracks trial-to-trial changes in behavior over the course of training.

Adaptive optimal training of animal behavior

no code implementations NeurIPS 2016 Ji Hyun Bak, Jung Yoon Choi, Athena Akrami, Ilana Witten, Jonathan W. Pillow

We show that we can accurately infer the parameters of a policy-gradient-based learning algorithm that describes how the animal's internal model of the task evolves over the course of training.

Experimental Design reinforcement-learning +1

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