- fc: promotor of Agata Cybulska, Amsterdam, the Netherlands
- fc: co-promotor Roxane Segers, Amsterdam, the Netherlands
- fc: Promotor of Isa Maks, Amsterdam, the Netherlands.
- fc.: Promotor of Bertie Kaal, Amsterdam, the Netherlands.
- fc: Member of the PhD Committee of Marcel Thelen: " TCM, Terminology and Translation", Amsterdam, the Netherlands.
- fc: Co-promoter of Francesco Ronzano, Pisa, Italy / Amsterdam, the Netherlands.
- fc: Promotor of Annemieke van Elfrinkhof, Amsterdam, the Netherlands.
- 2010: Member of the PhD Committee of Marc van Assem, Amsterdam, October 1, 2010
- 2010: Member of the PhD Committee of Marieke van Erp
, Amsterdam, the Netherlands, June 30, 2010.
- 2010: Member of the PhD Committee of Tim Van de Cruys, Groningen, the Netherlands, June 24, 2010.
- 2010: Member of the PhD Committee of Antonio Toral Ruiz, Alicante, Spain.
- 2009: Member of the PhD Committee of Nicole Grégoire, Utrecht, the Netherlands, November 10, 2009.
- 2009: Member of the PhD Committee of Ismail Fahmi: "Automatic Term and Relation Extraction"", Groningen, May 14, 2009.
- 2009: Member of the PhD Committee of Willem Robert van Hage: "Evaluating Ontology-Alignment Techniques"", Amsterdam, January 19, 2009
- 2008: Member of the PhD Committee of Lonneke van der Plas,: "Automatic lexico-semantic acquisition for question answering"", Groningen, October 23, 2008
- 2008: Member of the PhD Committee of Ales Horac: "Computer Processing of Czech Syntax and Semantics", Masaryk, Czech Republic, September 10, 2008.
- 2003: Member of the PhD Committee of Frank Joosten, KU Leuven, October, 2003.
- 2002: Member of the PhD Committee of Anselmo Peñas, Dpto. Lenguajes y Sistemas Informáticos, Universidad Nacional de Educación a Distancia (UNED)
- 1999: Member of the PhD Committee of Eneko Agirre, University of Bilbao.
- 1998: Member of the PhD Committee German Rigau, University Polytecnica de Catalunya, Barcelona.
- 1998: Member of the PhD Committee Henny van der Vliet, Faculty of Arts, Free University, Amsterdam.