operations research 213 decision making 76 entrepreneurship 50 mathematical programming 42 engineering 25 management 24 artificial intelligence 19 more ... algorithmization 14 decision making theory 14 informatics 13 numerical analysis 11 management information systems 11 mathematical models 10 stochastic processes 10 robotics 9 probability theory 9 systems theory 9 linear programming 8 simulation and modelling 8 logistics 7 mathematical statistics 7 game theory 7 production 7 cybernetics 6 reliability 6 quality management 6 applied mathematics 5 mathematical methods in economics 5 nonlinear programming 5 computer simulation 5 less ...