Analysis Combination and Pseudo Relevance Feedback in a Conceptual Language Model: LIRIS participation in ImageClefMed.
Loïc MaisonnasseFarah HarrathiPublished in: CLEF (Working Notes) (2009)
Keyphrases
- language model
- pseudo relevance feedback
- document retrieval
- query expansion
- language modelling
- ad hoc information retrieval
- language modeling
- n gram
- relevance model
- document ranking
- retrieval model
- information retrieval
- probabilistic model
- retrieval effectiveness
- pseudo feedback
- average precision
- ad hoc retrieval
- test collection
- trec test collections
- relevance feedback
- vector space model
- retrieval accuracy
- retrieved documents
- relevant documents
- expert search
- smoothing methods
- information retrieval systems