Our paper A hybrid approach to item recommendation in folksonomies has received the Best-Paper-Award at the Workshop on Exploiting Semantic Annotations in Information Retrieval (ESAIR 2009), co-located with this years WSDM conference in Barcelona.

The paper presents an extended version of the PLSA algorithm that combines collaborative filtering and tagging patterns found in folksonomies into a unified recommendation model. Experiments were done on our delicious corpus. We believe that folksonomies, and especially Social Bookmarking Services such as Delicious, provide a perfect soure for web resource recommendation.

If you want to get an idea what item recommendation based on folksonomies can look like see here.