- Communications Engineering, Networks 12
- Computational Intelligence 10
- Electronics and Microelectronics, Instrumentation 10
- Circuits and Systems 9
- Power Electronics, Electrical Machines and Networks 9
- Energy Systems 8
- Artificial Intelligence 6
- Aerospace Technology and Astronautics 5
- Control, Robotics, Mechatronics 4
- Multimedia Information Systems 4
- Software Engineering/Programming and Operating Systems 4
- Data Engineering 3
- Electrical Engineering 3
- Geophysics/Geodesy 3
- Signal, Image and Speech Processing 3
- Computer Communication Networks 2
- Computer System Implementation 2
- Cyber-physical systems, IoT 2
- Data Mining and Knowledge Discovery 2
- Geographical Information Systems/Cartography 2