Keyphrases
- information retrieval systems
- user preferences
- information retrieval
- user behavior
- user profiles
- document collections
- retrieval systems
- recommender systems
- inverted file
- query expansion
- relevance feedback
- relevant documents
- collaborative recommendation
- collaborative filtering
- retrieval model
- user queries
- user feedback
- recommendation systems
- user interests
- preference models
- retrieval effectiveness
- social influence
- preference model
- document indexing
- interactive information retrieval
- product recommendation
- xml retrieval
- retrieved documents
- text retrieval
- text retrieval systems
- interactive information retrieval systems
- personalized recommendation
- structured documents
- social networks