“…The most common control algorithms are Linear Quadratic Regulator (LQR), Linear Quadratic Gaussian (LQG), H 2 , H ∞ control, sliding mode control, pole assignment, independent model space control and fuzzy control (Wang et al ., ; Symans and Kelly, ; Sarbjeet and Datta, ; Spencer and Nagarajaiah, ; Choi et al ., ). In addition, Ribakov and Dancygier () used the polynomial active controller and instantaneous methods to find the optimal control forces for any time step during a seismic excitation.…”