BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250808T015042EDT-2940sBEUZE@132.216.98.100 DTSTAMP:20250808T055042Z DESCRIPTION:\n \n \n \n APPLIED MATH SEMINAR\n\n TITLE / TITRE\n Identifying and suppressing unknown disturbances to dynamical systems using machine learni ng\n \n ABSTRACT /RÉSUMÉ\n\n Recent years have seen an explosion in the use o f machine learning techniques for studying nonlinear dynamical systems. He re we explore how machine learning can be used to identify and subsequentl y suppress unknown disturbances to complex systems. We find that unknown d isturbances can be accurately detected with reservoir computer architectur es even when no knowledge of the underlying dynamics is assumed. All that is required are very mild conditions on the forcing functions used to trai n the reservoir. Moreover\, we also show that this framework can be extend ed to suppress the disturbances\, i.e.\, controlling the system to recover the undisturbed dynamics. We illustrate our method with the identificatio n of unknown disturbances to an analog electric chaotic circuit as well as numerical simulations of isolated and network-coupled nonlinear systems. \n\n  \n\n  \n \n \n \n\n DTSTART:20231120T210000Z DTEND:20231120T220000Z LOCATION:Room 1104\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Per Sebastian Skardal (Trinity College) URL:/mathstat/channels/event/sebastian-skardal-trinity -college-352518 END:VEVENT END:VCALENDAR