Keyphrases
- xml retrieval
- relevance feedback
- information retrieval systems
- document retrieval
- information retrieval
- xml information retrieval
- retrieval systems
- image retrieval
- retrieval model
- blind feedback
- entity ranking
- query expansion
- document collections
- structured document retrieval
- test collection
- relevant documents
- content and structure
- language model
- user feedback
- focused retrieval
- xml elements
- retrieval effectiveness
- pseudo relevance feedback
- relevance assessments
- retrieval process
- active learning
- xml ir
- database
- ranking functions
- relevance judgments
- search queries