University of Amsterdam at INEX 2009: Ad hoc, Book, and Entity Ranking Tracks

In this paper we describe our participation in INEX 2009 in the Ad Hoc Track, the Book Track, and the Entity Ranking Track. In the Ad Hoc track we investigate focused link evidence, using only links from retrieved sections. The new collection is not only annotated with Wikipedia categories, but also with YAGO/WordNet categories. We ex- plore how we can use both types of category information, in the Ad Hoc Track as well as in the Entity Ranking Track. Results in the Ad Hoc Track show Wikipedia categories are more eective than WordNet cate- gories, and Wikipedia categories in combination with relevance feedback lead to the best results.