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Model mismatch in multi-objective optimisation and preservation of trade-off order. ⁎

作     者:Gilberto Reynoso-Meza Alejandro Vignoni Yadira Boada Jesüs Picü Enric Picü 

作者机构:Industrial and Systems Engineering Graduate Program - PPGEPS. Polytechnic School. Pontifcia Universidade Catülica do Paraná PUCPR. Rua Imaculada Conceição 1155 Zip code 80215-901 Curitiba PR Brazil Synthetic Biology and Biosystems Control Lab I.U. de Automática e Informática Industrial (ai2) Universitat Politècnica de Valencia 46022 Camino de Vera S/N Valencia Spain 

出 版 物:《IFAC-PapersOnLine》 

年 卷 期:2019年第52卷第26期

页      面:249-254页

主  题:Multi-objective optimisation model mismatch synthetic biology synthetic gene circuit 

摘      要:Multi-objective optimisation is a valuable tool for tuning dynamical systems when simultaneous optimisation performance objectives are in conflict. When the goal is tuning the parameters of a synthetic biology device, mismatch between the model implemented in silico -a more or less coarse simplification of the real system- and the actual in vivo implementation might lead to a disagreement between the in silico and in vivo design objectives for a given solution from the Pareto front. Here, we propose an iterative closed-loop multi-objective optimisation approach where the new information provided by the difference between the in silico Pareto front and its in vivo implementation is used to improve the parametric model. This aims to minimise the discrepancies between in silico and in vivo performance objectives while preserving the trade-off order among solutions. As a proof-of-concept we consider the problem of tuning a synthetic gene circuit used as feedforward-feedback controller for the expression of a protein of interest. We use an extended parametric model of the gene synthetic circuit to represent the in vivo set up and a simplified one for the in silico one.

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