| Since 2007 | Vice President for Research, International Affairs, and Information Management (CIO), University of Hamburg |
| 2006–2007 | Deputy/Vice Dean for Strategic Development of Fakultät für Mathematik, Informatik und Naturwissenschaften, University of Hamburg |
2006
| Key Member of Core Team on “Institutional Strategy to Promote Top-Level Research”, University of Hamburg |
| 2004–2006 | Member of Board of Deans of Fakultät für Mathematik, Informatik und Naturwissenschaften (MIN), University of Hamburg |
| 2001–2006 | Dean of Department of Informatics, University of Hamburg |
| 2001 | Founding Member of Interdisciplinary Nanoscience Center Hamburg (INCH) |
| 2001 | Member of President’s Interdisciplinary Task Force “Center for Bioinformatics Hamburg”, University of Hamburg |
| 2000–2001 | Vice Dean of Department of Informatics, University of Hamburg |
| since 1988 | Member of International Conference Program Committees, Reviewer of Research Proposals and Research Programmes, (Co-)Organizer of Scientific Events, Member of (Advisory) Editorial Board of Image and Vision Computing (until 2007), Biological Cybernetics (until 2004), and Journal of Mathematical Imaging and Vision (until 2007) |