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Incorporating physical constraints into Gaussian process surrogate models (LDRD Project Summary)

Technical Report ·
DOI:https://doi.org/10.2172/1668928· OSTI ID:1668928
 [1];  [1];  [1];  [1];  [1]
  1. Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

This report summarizes work done under the Laboratory Directed Research and Development (LDRD) project titled "Incorporating physical constraints into Gaussian process surrogate models?' In this project, we explored a variety of strategies for constraint implementations. We considered bound constraints, monotonicity and related convexity constraints, Gaussian processes which are constrained to satisfy linear operator constraints which represent physical laws expressed as partial differential equations, and intrinsic boundary condition constraints. We wrote three papers and are currently finishing two others. We developed initial software implementations for some approaches. This report summarizes the work done under this LDRD.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Sandia National Laboratories, Livermore, CA
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
DOE Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1668928
Report Number(s):
SAND--2020-9720; 690916
Country of Publication:
United States
Language:
English

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