I work as a senior researcher at the L3S Research Center in Hannover, where I conduct research in the field of Human-Computer Interaction. My main research interests include user modeling, personalization, Web usage mining, data analysis and visualization, usability and user evaluation.
I am General Chair for the upcoming UMAP 2017 conference and was General Chair for the recently held Hypertext 2016 conference, which took place between 10 and 13 July in Halifax, Canada. Hypertext was collocated with UMAP 2016. I served as Program Chair for the Hypertext 2014 conference, which took place 1-4 September 2014 in Santiago de Chile. I served as local chair of the Adaptive Hypermedia 2008 conference, Publicity Chair for CHI 2012, UMAP 2010 and UMAP 2011, as Workshop and Tutorial Chair for UMAP 2012 and as Poster and Demo Chair for UMAP 2013. I am board member and information officer of User Modeling Inc and between 2007 and 2015, I served as the chair of the German SIG on Adaptive Systems and Interactive Systems ABIS.
I am currently involved in the European project EUMSSI and the German BMBF project GlycoRec on daily personalized support for diabetes patients. I was involved in the recently finished European projects LinkedUp, Stellar, Grapple and Sync3, in which I worked as local team leader and work package manager. I was general manager of the Prolean NoE, which finished successfully in 2008. Apart from project coordination, I supervise Ph.D. students and give lectures.
UMAP 2017 - the 25th Conference on User Modeling, Adaptation and Personalization will take place in Bratislava, Slovakia between 9 and 12 July 2017. Tentative submission deadline is 17 February 2017. Together with Maria Bielikova, I am general chair of UMAP 2017.
ABIS 2016 - the 22nd International Workshop on Intelligent and Personalized Human-Computer Interaction takes place on Sunday, 4 September 2016 in Aachen, Germany. ABIS is collocated with Mensch & Computer 2017. The workshop is organized by Mirjam Augstein, Wolfgang Woerndl and me.
Preview the Food Explorer. Search for recipes and learn about the nutritional values of the search results, as well as in which months the recipes are in season, the average age and gender distribution of users who submit the recipes that you queried for, and much more. This demo is work-in-progress and is being developed in the context of the BMBF project Glycorec.