Computer simulation 125 Digital computer simulation 90 Congresses 46 Data processing 25 Mathematical models 21 Simulation methods 17 Electronic digital computers 9 Evaluation 8 GPSS (Computer program language) 7 System analysis 6 Decision-making 5 Electronic data processing 4 Integrated circuits 4 Periodicals 4 Testing 4 Artificial intelligence 3 Computer Simulation 3 Computer-assisted instruction 3 Design and construction 3 Economics 3 Management 3 Manufacturing processes 3 Marketing 3 Numerical analysis 3 Production management 3 Software 3 Systems engineering 3 Very large scale integration 3 Aerial photographs 2 Aerodynamics 2