Keyphrases
- ranking algorithm
- relative importance
- information and communication technologies
- tag recommendation
- user feedback
- collaborative filtering
- web search
- e learning
- st century
- learning to rank
- distance learning
- higher education
- mobile learning
- recommender systems
- user preferences
- metadata
- trust propagation
- personalized recommendation
- learning sciences
- recommendation systems
- educational technology
- serious games
- ranking functions
- digital libraries
- distance education
- online learning
- user interaction
- implicit feedback
- rank aggregation
- search engine
- product recommendation