- Computer Communication Networks 12
- Communications Engineering, Networks 7
- Cryptology 7
- Signal, Image and Speech Processing 6
- Systems and Data Security 6
- e-Commerce/e-business 4
- Computer Science, general 3
- Management of Computing and Information Systems 3
- Processor Architectures 3
- Programming Languages, Compilers, Interpreters 3
- Artificial Intelligence 2
- Computers and Society 2
- Information Systems Applications (incl. Internet) 2
- Algorithm Analysis and Problem Complexity 1
- Computational Biology/Bioinformatics 1
- Computational Intelligence 1
- Computational Science and Engineering 1
- Computer Appl. in Administrative Data Processing 1
- Data Mining and Knowledge Discovery 1
- Data Structures and Information Theory 1