Diversity and Novelty on the Web: Search, Recommendation, and Data Streaming Aspects

This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in WWW '15 Companion Proceedings of the 24th International Conference on World Wide Web, http://dx.doi.org/10.1145/10.1145/2740908.2741988This tutorial aims to provide a unifying account of current research on diversity and novelty in di erent web information systems. In particular, the tutorial will cover the motivations, as well as the most established approaches for producing and evaluating diverse results in search engines, recommender systems, and data streams, all within the context of the World Wide Web. By contrasting the state-of-the-art in these multiple domains, this tutorial aims to derive a common understanding of the diversi cation problem and the existing solutions, their commonalities and di erences, as a means to foster new research directions.I. S. Altingovde and F. Can are partially supported by METU BAP-08-11-2013-055 project and The Scientific and Technological Research Council of Turkey (T UB_ ITAK) under the grant no. 113E249, respectively