Mathematical optimization Mathematics 254 Mathematical models 170 Operations research 111 Control theory 84 Computer science 83 Engineering 67 Data processing 60 Economics 55 Engineering mathematics 52 Algorithms 49 Engineering design 43 Swarm intelligence 43 Differential equations, Partial 39 Numerical analysis 37 Linear programming 35 Programming (Mathematics) 32 Functional analysis 27 Systems theory 27 Computer simulation 25 Decision making 25 Global analysis (Mathematics) 24 Industrial engineering 24 Distribution (Probability theory) 22 Nonlinear theories 20 Stochastic processes 20 Chemical processes 19 Computer algorithms 19 Automatic control 18 Electric power systems 17