Python (Computer program language) 12 Machine learning 10 Java (Computer program language) 6 Perl (Computer program language) 6 Artificial intelligence 5 Data mining 5 Operating systems (Computers) 5 Application software 4 Computer networks 4 Data processing 4 Electronic data processing 4 Information visualization 4 Neural networks (Computer science) 4 Computer algorithms 3 Computer graphics 3 Computer programs 3 Internet programming 3 Web sites 3 Application program interfaces (Computer software) 2 Business 2 C (Computer program language) 2 CGI (Computer network protocol) 2 Cloud computing 2 Database management 2 Design 2 Development 2 Distributed processing 2 HTML (Document markup language) 2 Internet 2 JavaScript (Computer program language) 2