State observability in recurrent neural networks
Systems & Control Letters
Linearization of Discrete-Time Systems
SIAM Journal on Control and Optimization
Automatica (Journal of IFAC)
Online identification of the system order with ANARX structure
ICAIS'11 Proceedings of the Second international conference on Adaptive and intelligent systems
ICONIP'12 Proceedings of the 19th international conference on Neural Information Processing - Volume Part I
Neural networks based system for the supervision of therapeutic exercises
ICONIP'12 Proceedings of the 19th international conference on Neural Information Processing - Volume Part IV
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This paper proves that the typical neural network-based input/output model does not have a state-space realization and suggests the Additive Nonlinear Auto-Regressive with eXogenous input (ANARX) structure as an excellent choice for neural-network-based input-output models. The advantage of the ANARX model is that the time-steps in the argument are pair-wise decomposed, which allows the ANARX model to be realized in state space, and to be linearized via dynamic output feedback. Moreover, accessibility of the state-space realization has been proved.