A Closed-loop Framework to Discriminate Models Using Optimal Control
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arXiv
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| Format: | Preprint |
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2026
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| author | Pagnier, Laurent Tyloo, Melvyn Jindal, Akshita Thakur, Pragati Wedgwood, Kyle C. A. |
| author_facet | Pagnier, Laurent Tyloo, Melvyn Jindal, Akshita Thakur, Pragati Wedgwood, Kyle C. A. |
| contents | Predicting the response of an observed system to a known input is a fruitful first step to accurately control the system's dynamics. Despite the recent advances in fully data-driven algorithms, the most interpretable way to reach this goal is through mechanistic mathematical modeling. Here, we leverage optimal control and propose a closed-loop iterative method to choose among a set of candidate models the one that most accurately predict an observed system. We assume that one has control over an input of the observed system and access to measurements of its response. Our approach is to identify the input control that maximally discriminates the response of the candidate models, allowing us to determine which model is best by comparing such responses with the observed data. We demonstrate our proposed framework in numerical simulations before applying it during an electrophysiology experiment, successfully discriminating between different models for photocurrents produced via opsin dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_00709 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A Closed-loop Framework to Discriminate Models Using Optimal Control Pagnier, Laurent Tyloo, Melvyn Jindal, Akshita Thakur, Pragati Wedgwood, Kyle C. A. Dynamical Systems Systems and Control Quantitative Methods Predicting the response of an observed system to a known input is a fruitful first step to accurately control the system's dynamics. Despite the recent advances in fully data-driven algorithms, the most interpretable way to reach this goal is through mechanistic mathematical modeling. Here, we leverage optimal control and propose a closed-loop iterative method to choose among a set of candidate models the one that most accurately predict an observed system. We assume that one has control over an input of the observed system and access to measurements of its response. Our approach is to identify the input control that maximally discriminates the response of the candidate models, allowing us to determine which model is best by comparing such responses with the observed data. We demonstrate our proposed framework in numerical simulations before applying it during an electrophysiology experiment, successfully discriminating between different models for photocurrents produced via opsin dynamics. |
| title | A Closed-loop Framework to Discriminate Models Using Optimal Control |
| topic | Dynamical Systems Systems and Control Quantitative Methods |
| url | https://arxiv.org/abs/2603.00709 |