Associative document retrieval by query subtopic analysis and its application to invalidity patent search.
Toru TakakiAtsushi FujiiTetsuya IshikawaPublished in: CIKM (2004)
Keyphrases
- document retrieval
- relevance feedback
- document ranking
- query terms
- database
- patent search
- document collections
- language model
- text retrieval
- intellectual property
- inverted index
- query expansion
- cross language
- retrieval model
- retrieved documents
- result set
- user queries
- information retrieval systems
- query processing
- information retrieval
- ranking functions
- relevant documents
- active learning
- pseudo relevance feedback
- query formulation
- feature space
- metadata
- retrieve documents