Personalized Query Expansion Based on Semantic User Model in E-learning System.
Xiaojian LiShi-hong ChenPublished in: FSKD (2) (2009)
Keyphrases
- query expansion
- user model
- e learning
- user modeling
- user modelling
- domain independent
- information retrieval systems
- retrieval effectiveness
- user profiles
- information retrieval
- pseudo relevance feedback
- relevance feedback
- text retrieval
- relevant documents
- language model
- user interaction
- individual user
- personalized services
- domain specific
- automatic query expansion
- user interests
- improving search
- query disambiguation
- original query
- learning resources
- recommender systems
- semantic information
- natural language
- query terms
- biomedical information retrieval
- learning objects
- learning environment
- retrieval model
- user interface
- semantic similarity
- query specific
- search logs
- ranked retrieval
- semantic network
- general purpose
- learning process
- relevance model
- user feedback
- interactive query expansion