Keyphrases
- virtual communities
- domain knowledge
- knowledge base
- domain ontology
- information sharing
- knowledge representation
- social aspects
- face to face communication
- decentralized control
- knowledge acquisition
- knowledge management
- conceptual structures
- knowledge sharing
- trust and reputation systems
- domain experts
- virtual world
- semantic web
- domain specific
- semantic information
- online communities
- decision support
- video sequences
- social networks