Multi-objective Bayesian Optimization with Heuristic Objectives for Biomedical and Molecular Data Analysis Workflows

Published: 20 Mar 2023, Last Modified: 21 Sept 2023Accepted by TMLREveryoneRevisionsBibTeX
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Abstract: Many practical applications require optimization of multiple, computationally expensive, and possibly competing objectives that are well-suited for multi-objective Bayesian optimization (MOBO). However, for many types of biomedical data, measures of data analysis workflow success are often heuristic and therefore it is not known a priori which objectives are useful. Thus, MOBO methods that return the full Pareto front may be suboptimal in these cases. Here we propose a novel MOBO method that adaptively updates the scalarization function using properties of the posterior of a multi-output Gaussian process surrogate function. This approach selects useful objectives based on a flexible set of desirable criteria, allowing the functional form of each objective to guide optimization. We demonstrate the qualitative behaviour of our method on toy data and perform proof-of-concept analyses of single-cell RNA sequencing and highly multiplexed imaging datasets for univariate input optimization.
Submission Length: Long submission (more than 12 pages of main content)
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Changes Since Last Submission: Added the camera-ready revision.
Assigned Action Editor: ~Antti_Honkela1
License: Creative Commons Attribution 4.0 International (CC BY 4.0)
Submission Number: 693