ArticleMaterials (Basel, Switzerland)2026
A Problem-Setup-Centric Framework for Mixed-Variable Chemical Formulation Optimization with Customized Constraints.
Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Chemical formulation design is a challenging multi-objective optimization problem involving mixed continuous and discrete variables, feasibility constraints, and limited experimental data. Existing virtual formulation generation methods are often restricted to interpolation within historically observed regions and therefore lack sufficient exploratory capability. In this work, a problem-setup-centric multi-objective optimization framework for virtual chemical formulation generation is proposed. The framework uses a pymoo-based mixed-variable evolutionary workflow to optimize machine-learning-predicted properties under application-specific objectives and constraints. One energetic-material formulation dataset and one steel-alloy composition dataset are used to evaluate the proposed approach. The generated Pareto solutions include candidates that remain similar to historical formulations and candidates that show greater statistical deviation from the historical data distribution. The t-SNE projections provide qualitative visualizations of local structural relationships, while Mahalanobis-distance and feature-distribution analyses characterize statistical deviation in the original feature space. Overall, this study provides a flexible and practical workflow for data-driven virtual formulation design with customized mixed-variable constraints.
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