Keyphrases
- xml retrieval
- relevance feedback
- information retrieval systems
- document retrieval
- information retrieval
- retrieval model
- document collections
- retrieval systems
- image retrieval
- query expansion
- entity ranking
- content and structure
- structured document retrieval
- blind feedback
- xml information retrieval
- relevant documents
- retrieval effectiveness
- user feedback
- xml elements
- test collection
- active learning
- focused retrieval
- multimedia retrieval
- pseudo relevance feedback
- language model
- retrieved documents
- relevance assessments
- retrieval process
- search queries
- user queries
- relevance judgments
- question answering
- ad hoc retrieval
- text classification
- relational databases
- digital libraries