Wessel Kraaij is a senior research scientist at TNO Information and Communication Technology and a Professor at Radboud University Nijmegen. He has been leading several applied research projects in the areas of information retrieval, language technology and content management. His main research interests are multimedia retrieval and language technology. He (co-)authored over 70 research papers for workshops, conferences and journals as well as several book chapters in the areas of cross language information retrieval, web retrieval, multimedia retrieval, summarization, topic detection and tracking, language modeling for IR and NLP enhanced IR. He is a member of the editorial board for several journals and program committee member of conferences in the area of information retrieval and natural language processing. Since 2003 he is a joint coordinator of the NIST TRECVID benchmarking workshop on video retrieval. He was general co-chair of SIGIR 2007.