Radio frequency identification systems 755 Identification 551 Biometric identification 391 Data processing 220 Pattern recognition systems 201 System identification 168 Automation 162 Radio frequency 148 Fingerprints 118 Inventory control 98 Security measures 62 Human face recognition (Computer science) 53 Image processing 53 Security systems 49 Real-time data processing 48 Design and construction 43 Computer networks 40 Business logistics 39 Writing 38 Wireless communication systems 37 Mathematical models 36 Database design 33 Automatic control 31 Electronic data processing 30 Smart cards 29 Computer security 27 Optical pattern recognition 27 System design 27 Computer vision 24 Neural networks (Computer science) 24