Keyphrases
- virtual communities
- social media
- social networks
- online communities
- online communication
- information security
- access control
- situated learning
- intrusion detection
- information sharing
- security vulnerabilities
- social networking
- virtual world
- trust and reputation systems
- security issues
- online social networks
- big data
- online game
- positive effects
- social media data
- social interaction
- social networking sites
- information flow