Expansion of queries and databases for improving the retrieval accuracy of document portions: an application to a camera-pen system.
Koichi KiseMegumi ChikanoKazumasa IwataMasakazu IwamuraSeiichi UchidaShinichiro OmachiPublished in: Document Analysis Systems (2010)
Keyphrases
- retrieval accuracy
- databases
- database
- retrieval systems
- similarity measurement
- pseudo relevance feedback
- user queries
- image retrieval
- query terms
- retrieval method
- relevance feedback
- query specific
- data sources
- document retrieval
- web search engines
- query processing
- information retrieval systems
- retrieval process
- relevance model
- relevant documents
- relational databases
- web documents
- information retrieval
- document collections
- metadata
- retrieval effectiveness
- average precision
- machine learning
- retrieval model
- query expansion
- language model
- database systems
- feature selection
- image database