Domain Knowledge Guided Bayesian Optimization For Autonomous Alignment Of Complex Scientific Instruments

• URL: http://arxiv.org/abs/2602.10670v1
• Date: Wed, 11 Feb 2026 09:15:20 GMT
• Title: Domain Knowledge Guided Bayesian Optimization For Autonomous Alignment Of Complex Scientific Instruments
• Authors: Aashwin Mishra, Matt Seaberg, Ryan Roussel, Daniel Ratner, Apurva Mehta,
• Abstract summary: We propose a domain knowledge guided Bayesian Optimization approach, which leverages physical insight to simplify the search problem.<n>We demonstrate this approach's efficacy on a challenging 12-dimensional, 6-crystal Split-and-Delay optical system.<n>Our results demonstrate a generalizable paradigm: leveraging physical insight to transform high-dimensional, coupled optimization problems into simpler representations can enable rapid and robust automated tuning.
• Score: 0.44654729785785796
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Bayesian Optimization (BO) is a powerful tool for optimizing complex non-linear systems. However, its performance degrades in high-dimensional problems with tightly coupled parameters and highly asymmetric objective landscapes, where rewards are sparse. In such needle-in-a-haystack scenarios, even advanced methods like trust-region BO (TurBO) often lead to unsatisfactory results. We propose a domain knowledge guided Bayesian Optimization approach, which leverages physical insight to fundamentally simplify the search problem by transforming coordinates to decouple input features and align the active subspaces with the primary search axes. We demonstrate this approach's efficacy on a challenging 12-dimensional, 6-crystal Split-and-Delay optical system, where conventional approaches, including standard BO, TuRBO and multi-objective BO, consistently led to unsatisfactory results. When combined with an reverse annealing exploration strategy, this approach reliably converges to the global optimum. The coordinate transformation itself is the key to this success, significantly accelerating the search by aligning input co-ordinate axes with the problem's active subspaces. As increasingly complex scientific instruments, from large telescopes to new spectrometers at X-ray Free Electron Lasers are deployed, the demand for robust high-dimensional optimization grows. Our results demonstrate a generalizable paradigm: leveraging physical insight to transform high-dimensional, coupled optimization problems into simpler representations can enable rapid and robust automated tuning for consistent high performance while still retaining current optimization algorithms.

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