Congresses 770 History 156 Mathematical models 108 Data processing 99 Computer programming 79 Artificial intelligence 70 Computer science 66 Parallel processing (Electronic computers) 65 Philosophy 62 Programming languages (Electronic computers) 62 History and criticism 59 Politics and government 57 Computer algorithms 55 Computer software 54 Economic policy 51 Mathematics 50 Electronic data processing 49 Database management 47 Economic conditions 47 Logic, Symbolic and mathematical 46 Mathematical optimization 46 Foreign relations 44 Logic programming 44 Religion 44 Control theory 39 Machine theory 39 Education 38 Science 37 Computational complexity 35 Economics 35