Pseudo-Relevance Feedback and Title Re-Ranking for Chinese Information Retrieval.
Robert W. P. LukKam-Fai WongPublished in: NTCIR (2004)
Keyphrases
- pseudo relevance feedback
- information retrieval
- query expansion
- trec test collections
- document ranking
- automatic query expansion
- document retrieval
- retrieval effectiveness
- relevant documents
- retrieved documents
- pseudo feedback
- learning to rank
- language model
- expert search
- ad hoc retrieval
- query specific
- relevance feedback
- ranking functions
- relevance model
- term selection
- information retrieval systems
- ad hoc information retrieval
- query terms
- trec collections
- test collection
- ranked list
- language modeling
- text retrieval
- document collections
- retrieval model
- average precision
- short queries
- document length
- original query
- keywords
- information extraction
- retrieval systems
- user queries
- ranking algorithm
- search engine
- query topic
- web search
- expert finding
- digital libraries
- co occurrence
- document representation
- term weighting
- multimedia
- feature selection
- term frequency