RT info:eu-repo/semantics/article T1 A computational approach to partial least squares model inversion in the framework of the process analytical technology and quality by design initiatives A1 Ruiz Miguel, Santiago A1 Ortiz Fernández, Mª Cruz A1 Sarabia Peinador, Luis Antonio A1 Sánchez Pastor, Mª Sagrario K1 Process analytical technology K1 Quality by design K1 Partial least squares K1 Pareto optimality K1 Process decision making K1 Industrial processes K1 Química analítica K1 Chemistry, Analytic AB In the context of the paradigms founding the Quality by Design and Process Analytical Technology initiatives, the work herein presents a computational approach to support the decision-making process, in particular, about the feasibility of a product defined for some a priori given quality characteristics.The approach is based on the computation of the pareto-optimal front when simultaneously minimizing the expected differences between the predicted and the desired characteristics. Thus, the feasibility is tackled as an optimization problem with the novelty of doing so simultaneously for all the characteristics, preserving the correlation structure, but by separately handling each individual characteristic.With data from a low-density polyethylene production process, with fourteen process variables and five measured characteristics of the final polyethylene, solutions are found to define the Design Space for targeted quality characteristics on the product, and without the need of explicitly inverting the PLS (Partial Least Squares) prediction model fitted to the process. PB Elsevier SN 0169-7439 YR 2018 FD 2018-11 LK http://hdl.handle.net/10259/4973 UL http://hdl.handle.net/10259/4973 LA eng NO Junta de Castilla y León (BU012P17), and also Spanish MINECO and Agencia Estatal de Investigación under research projects CTQ2014-53157-R, and CTQ2017-88894-R DS Repositorio Institucional de la Universidad de Burgos RD 24-nov-2024