Optimization and supervised machine learning methods for fitting numerical physics models without derivatives
- Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Texas, Austin, TX (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Michigan State Univ., East Lansing, MI (United States)
- Univ. Erlanger-Nurnberg (Germany)
Here, we address the calibration of a computationally expensive nuclear physics model for which derivative information with respect to the fit parameters is not readily available. Of particular interest is the performance of optimization-based training algorithms when dozens, rather than millions or more, of training data are available and when the expense of the model places limitations on the number of concurrent model evaluations that can be performed. As a case study, we consider the Fayans energy density functional model, which has characteristics similar to many model fitting and calibration problems in nuclear physics. We analyze hyperparameter tuning considerations and variability associated with stochastic optimization algorithms and illustrate considerations for tuning in different computational settings.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
- Grant/Contract Number:
- AC02-06CH11357; SC0013365; SC0018083
- OSTI ID:
- 1765468
- Journal Information:
- Journal of Physics. G, Nuclear and Particle Physics, Vol. 48, Issue 2; ISSN 0954-3899
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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