Computer simulation 125 Digital computer simulation 90 Congresses 51 Data processing 38 Mathematical models 36 Simulation methods 24 Electronic digital computers 9 Evaluation 8 GPSS (Computer program language) 7 Decision-making 6 System analysis 6 Electronic data processing 5 Integrated circuits 5 Testing 5 Artificial intelligence 4 Design and construction 4 Economics 4 Management 4 Periodicals 4 Very large scale integration 4 Buildings 3 Computer Simulation 3 Computer-assisted instruction 3 Decision making 3 Engineering 3 Expert systems (Computer science) 3 Inventory control 3 Manufacturing processes 3 Marketing 3 Numerical analysis 3