Auto-regressive 3 Backpropagation 3 Complex nonlinear system 3 Joints (anatomy) 3 Mean square error 3 Muscle 3 Neural networks 3 Non-linear modelling 3 Nonlinear systems 3 Back propagation neural networks 2 Backpropagation algorithms 2 Logical modeling 2 Muscle modeling 2 Neural network model 2 Non-linear model 2 Nonlinear analysis 2 Technology: general issues 2 artificial neural network 2 backpropagation 2 non-linear model 2 nonlinear autoregressive 2 quadriceps muscle 2 ABAQUS 1 AYL 1 CHAOS 1 CPWC 1 Compressive strength 1 Computer science 1 Concrete beams and girders 1 Concrete slabs 1