Blind Relevance Feedback and Named Entity Based Query Expansion for Geographic Retrieval at GeoCLEF 2006.
Kerstin BischoffThomas MandlChrista Womser-HackerPublished in: CLEF (2006)
Keyphrases
- blind relevance feedback
- query expansion
- named entities
- text retrieval
- retrieval effectiveness
- named entity recognition
- information retrieval systems
- information extraction
- information retrieval
- co occurrence
- natural language processing
- text mining
- question answering
- language modeling
- relevance feedback
- language model
- automatic query expansion
- retrieval model
- relevant documents
- pseudo relevance feedback
- unsupervised learning
- noun phrases
- query terms
- retrieved documents
- original query
- document retrieval
- average precision
- query translation
- keywords
- learning algorithm
- document collections
- artificial intelligence
- image retrieval