- Classical and Quantum Gravitation, Relativity Theory 131
- Elementary Particles, Quantum Field Theory 131
- Quantum Field Theories, String Theory 131
- Quantum Physics 130
- Computer Applications 4
- Computer Communication Networks 4
- Astronomy, Astrophysics and Cosmology 3
- Computational Intelligence 3
- Condensed Matter Physics 3
- Data Mining and Knowledge Discovery 3
- Information Systems Applications (incl. Internet) 3
- Transportation Technology and Traffic Engineering 3
- Artificial Intelligence 2
- Atomic, Molecular, Optical and Plasma Physics 2
- Characterization and Evaluation of Materials 2
- Computer Imaging, Vision, Pattern Recognition and Graphics 2
- Electrical Engineering 2
- Medicine/Public Health, general 2
- Natural Language Processing (NLP) 2
- Neurology 2