Keyphrases
- touch screen
- smart phones
- mobile devices
- age groups
- gesture recognition
- internet access
- hidden markov models
- hand gestures
- usability issues
- human robot interaction
- sign language
- computer technology
- user experience
- mobile phone
- young children
- data sets
- mobile applications
- vision system
- usability testing
- older adults
- information retrieval
- neural network
- database