Knowledge based systems 34 Expert systems / knowledge-based systems 20 Artificial intelligence 14 Information retrieval 8 Network hardware 8 Information technology: general issues 7 Software Engineering 7 Knowledge based 6 Machine learning 6 Systems analysis & design 6 Data mining 5 User interface design & usability 5 Algorithms & data structures 4 Computer networking & communications 4 Algorithms 3 Business mathematics & systems 3 Computer science 3 Databases 3 Image processing 3 Learning algorithms 3 Software engineering 3 knowledge based system 3 knowledge-based system 3 machine learning 3 software 3 Carbon 2 Coding theory & cryptology 2 Computer aided diagnosis 2 Computer aided diagnosis systems 2 Cytology 2