Mathematics 71 R (Computer program language) 57 Nanotechnology 56 Data processing 48 Data mining 47 Image processing 45 Mathematical models 41 Nanostructured materials 39 Computer security 38 Mathematical statistics 38 Biotechnology 34 Food 29 Digital techniques 28 Computer networks 26 Computer science 26 Big data 25 Security measures 23 methods 23 Differential equations 22 Geographic information systems 22 Nanostructures 22 Polymers 22 Management 21 Multivariate analysis 20 Wireless communication systems 20 Bayesian statistical decision theory 19 Data encryption (Computer science) 19 Graph theory 19 Information technology 19 Machine learning 19