35th European Conference on IR Research, ECIR 2013, Moscow, Russia, March 24-27, 2013: proceedings
ISBN
9783642369728
ISBN (electronic)
9783642369735
Series
Lecture Notes in Computer Science
Event
35th European Conference on Information Retrieval (ECIR'13)
Pages (from-to)
743-746
Publisher
Heidelberg: Springer
Organisations
Faculty of Science (FNWI) - Informatics Institute (IVI)
Abstract
The character of microblog environments raises challenges for microblog search because relevancy becomes one of the many aspects for ranking documents. We concentrate on merging multiple ranking strategies at post-retrieval time for the TREC Microblog task. We compare several state-of-the-art late data fusion methods, and present a new semi-supervised variant that accounts for microblog characteristics. Our experiments show the utility of late data fusion in microblog search, and that our method helps boost retrieval effectiveness.
