Toward a model-free feedback control synthesis for treating acute inflammation

Ouassim Bara 1 Michel Fliess 2, 3 Cédric Join 4, 3, 5 Judy Day 6 Seddik Djouadi 1
1 Department of Electrical Engineering and Computer Science [Knoxville]
2 LIX - Laboratoire d'informatique de l'École polytechnique [Palaiseau]
3 AL.I.E.N. - ALgèbre pour Identification & Estimation Numériques
4 CRAN - Centre de Recherche en Automatique de Nancy
5 NON-A-POST - Non-Asymptotic estimation for online systems
Inria Lille - Nord Europe
6 Department of Mathematics University of Tennessee Knoxville
Department of Mathematics [Tennessee]
Abstract : An effective and patient-specific feedback control synthesis for inflammation resolution is still an ongoing research area. A strategy consisting of manipulating a pro and anti-inflammatory mediator is considered here as used in some promising model-based control studies. These earlier studies, unfortunately, suffer from the difficultly of calibration due to the heterogeneity of individual patient responses even under similar initial conditions. We exploit a new model-free control approach and its corresponding "intelligent" controllers for this biomedical problem. A crucial feature of the proposed control problem is as follows: the two most important outputs which must be driven to their respective desired states are sensorless. This difficulty is overcome by assigning suitable reference trajectories to the other two outputs that do have sensors. A mathematical model, via a system of ordinary differential equations, is nevertheless employed as a "virtual" patient for in silico testing. We display several simulation results with respect to the most varied situations, which highlight the effectiveness of our viewpoint.
Keywords : Immune systems Inflammatory response Intelligent controllers Model-free control
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Journal articles
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Submitted on : Tuesday, April 3, 2018 - 12:05:41 AM
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Ouassim Bara, Michel Fliess, Cédric Join, Judy Day, Seddik Djouadi. Toward a model-free feedback control synthesis for treating acute inflammation. Journal of Theoretical Biology, Elsevier, 2018, 448, pp.26-37. ⟨10.1016/j.jtbi.2018.04.003⟩. ⟨hal-01756743⟩

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