Ilya Markov was invited to give a tutorial on user behavior in web search at the AINL-ISMW FRUCT 2015 conference for young scientists, held in St. Petersburg, Russia, on November 9-14. The tutorial discussed how user clicks in web search can be analyzed, interpreted and modeled and how the resulting click models help to improve web search. The information and materials on click models can be found at the dedicated web site.

“Learning to Explain Entity Relationships in Knowledge Graphs”, an ACL 2015 paper authored by Nikos Voskarides, Edgar Meij, Manos Tsagkias, Maarten de Rijke and Wouter Weerkamp, will be presented at the Dutch-Belgian Information Retrieval (DIR) workshop on November 27th 2015.

Abstract:
We study the problem of explaining relationships between pairs of knowledge graph entities with human-readable descriptions. Our method extracts and enriches sentences that refer to an entity pair from a corpus and ranks the sentences according to how well they describe the relationship between the entities. We model this task as a learning to rank problem for sentences and employ a rich set of features. When evaluated on a large set of manually annotated sentences, we find that our method significantly improves over state-of-the-art baseline models.