The interactive PRP for diversifying document rankings

The assumptions underlying the Probability Ranking Principle (PRP) have led to a number of alternative approaches that cater or compensate for the PRP’s limitations. In this poster we focus on the Interactive PRP (iPRP), which rejects the assumption of independence between documents made by the PRP. Although the theoretical framework of the iPRP is appealing, no instantiation has been proposed and investigated. In this poster, we propose a possible instantiation of the principle, performing the first empirical comparison of the iPRP against the PRP. For document diversification, our results show that the iPRP is significantly better than the PRP, and comparable to or better than other methods such as Modern Portfolio Theory. Categories and Subject Descriptors: H.3.3 [Information Storage and Retrieval] - Information Search and Retrieval - Retrieval Models General Terms: Algorithms, Theory.

• Type: Journal
• Year: 2011
• Where: SIGIR
• Authors: Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen
• Keywords: Information Storage And Retrieval, Information Technology, Modern Portfolio Theory, Retrieval Models, SIGIR 2011