What does LR4IR stand for?

MLA style: "LR4IR." Acronym Finder . 2012. AcronymFinder.com 12 Feb. 2012 <a href="http://www.acronymfinder.com/Learning-to-Rank-for-Information-Retrieval-(conference)-(LR4IR).html">http://www.acronymfinder.com/Learning-to-Rank-for-Information-Retrieval-(conference)-(LR4IR).html
Chicago style: Acronym Finder . S.v. "LR4IR." Retrieved February 12 2012 from <a href="http://www.acronymfinder.com/Learning-to-Rank-for-Information-Retrieval-(conference)-(LR4IR).html">http://www.acronymfinder.com/Learning-to-Rank-for-Information-Retrieval-(conference)-(LR4IR).html
APA style: LR4IR. (n.d.) Acronym Finder. (2012). Retrieved February 12 2012 from <a href="http://www.acronymfinder.com/Learning-to-Rank-for-Information-Retrieval-(conference)-(LR4IR).html">http://www.acronymfinder.com/Learning-to-Rank-for-Information-Retrieval-(conference)-(LR4IR).html

Learning to Rank for Information Retrieval (conference)

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