“…The second approach exploits the feedback properties of the DNN that avoids many of the problems related to global extreme search, converting the learning (training) process into an adequate feedback design. If the mathematical model of a considered phenomenon is incomplete or only partially known, the DNN approach provides an effective instrument to deal with a wide spectrum of problems such as identification, state estimation, and trajectory tracking (Poznyak et al, 1999). Hence, this seems to be an appropriate solution for the control design in financial analysis.…”