projects I am or have been involved in


The goal of EURECA (Enabling information re-Use by linking clinical REsearch and Care) is to enable seamless, secure, scalable and consistent linkage of healthcare information residing in electronic health record (EHR) systems with information in clinical research information systems, such as clinical trials.


How do different media-outlets cover political news? The PoliMedia project aims to showcase the potential of cross-media analysis for research in the humanities, by curating automatically detected semantic links between data sets of different media types.

Update: Polimedia won the LinkedUp Veni Competition! Try our demo at or read our paper.


ImREAL logo

ImREAL is an EU FP7 project on adaptive simulated learning. The main challenge is to connect the learning experience in the simulated environment with the real world and day-to-day job practice of the learners.

During 2010/2011 I've been workpackage leader of WP4 on extended learner and context modeling. In this workpackage, we created semantic models to represent users and their real world context, explored ways to fill these models with usage data, and developed ontology alignment methods to match these models to Linked Open Data. Amongst other things we worked on U-Sem, a framework for the semantic enrichment and mining of people's profiles from usage data on the Social Web.
See also the project website.


Agora logo

In 2009/2010 I was involved in the AGORA: Semantics of History project, funded by the NWO Catch program and the Camera Institute at the VU University Amsterdam.


munch diagram

Untill April 2010 I have been working in the MUNCH project (Multimedia Analysis of Cultural Heritage), funded by the NWO Catch program. MUNCH is a cooperation between the VU, the UvA and the Dutch Institute for Sound and Vision. We aim to improve search possibilities in the rich collection of Dutch television broadcasts that is archived at 'Sound and Vision', by combining three research directions: structured background knowledge in the form of ontologies or thesauri, language technologies and content-based image retrieval.


munch diagram

Untill early 2006 I participated in the Multimedian E-Culture project. I recommend everyone to play around with the E-Culture Web Demonstrator, which has won the Semantic Web Challenge 2006.


From January 2002 until April 2006 I worked as a PhD student in the IOP funded project Interactive Disclosure of Multimedia, Information and Knowledge, or ImIk (Interactieve Ontsluiting van Multimedia Informatie en kennis). On the 16th of November 2006 I defended my PhD thesis, titled Semantic annotation for retrieval of visual resources [PDF].