Evaluation of Diversity-Focused Strategies for Multimedia Retrieval [chapter]

Julien Ah-Pine, Gabriela Csurka, Jean-Michel Renders
2009 Lecture Notes in Computer Science  
In this paper, we propose and evaluate different strategies to promote diversity in the top results of multimedia retrieval systems. These strategies consist in clustering, explicitly or implictly, the elements of the top list of some initial ranking and produce a re-ranking that favours elements belonging to different clusters. We evaluate these strategies in the particular case of ImageCLEFPhoto 2008 Collection. Results show that most of these strategies succeed in increasing a diversity
more » ... rmance measure, while keeping or slightly degrading precision of the top list and, more interestingly, they achieve this in complementary ways.
doi:10.1007/978-3-642-04447-2_85 fatcat:moastqtxnbdxxobs3ra7cj62bq