Control theory 1 059 Automatic control 457 Nonlinear control theory 185 Mathematical optimization 92 Feedback control systems 68 Mathematical models 61 System analysis 49 PID controllers 36 Systems engineering 35 Linear control systems 33 Adaptive control systems 32 Linear systems 30 Stochastic control theory 29 Nonlinear systems 28 Fuzzy systems 24 Predictive control 23 Intelligent control systems 22 Automation 21 Design and construction 21 Discrete-time systems 21 Mathematics 21 Pendulum 21 Congresses 20 Neural networks (Computer science) 18 Robust control 18 Data processing 17 Robotics 16 Chaotic behavior in systems 14 Differentiable dynamical systems 14 Nonlinear theories 14