Investigating the suboptimality and instability of pseudo-relevance feedback.
Raghavendra UdupaAbhijit BholePublished in: SIGIR (2010)
Keyphrases
- pseudo relevance feedback
- query expansion
- retrieval effectiveness
- document retrieval
- language model
- ad hoc retrieval
- relevant documents
- relevance feedback
- average precision
- retrieval accuracy
- language modelling
- relevance model
- information retrieval
- retrieved documents
- automatic query expansion
- query terms
- pseudo feedback
- test collection
- original query
- query specific
- information retrieval systems
- term selection
- ad hoc information retrieval
- user queries
- probabilistic model