Member of the Organisation Committee of the 3rd IRF Conference 2012

Co-organiser of the CLEF-IP Evaluation Campaign 2012

Co-chair of the 20th Summer School on Image Processing (SSIP), Vienna, July 2012

Lecturer of a course on Domain-Specific Information Retrieval at the 6th Russian Summer School in Information Retrieval (RuSSIR 2012) (with Mihai Lupu).

Plenty of reviewing, including BMVC 2012, ECIR 2012, CVPR 2012, ICCV 2011, ACM MM 2012, …

Management Committee Substitute Member for the EU COST Action IC1002: Multilingual and multifaceted interactive information access (MUMIA)

General Chair of the 1st International Workshop on Advances in Patent Information Retrieval (AsPIRe'10), collocated with the ECIR 2010.

Member of the Organisation Committee of the 1st IRF Conference 2010

Demo Chair of the 7th International Workshop on Content-Based Multimedia Indexing (CBMI) 2009

Special Session Chair of the International Conference on Image and Video Retrieval (CIVR) 2009

Guest editor of the Computer Vision and Image Understanding special issue on the Evaluation of Image and Video Retrieval Systems (to appear mid 2009)

Organiser of the 16th Summer School on Image Processing (SSIP), Vienna, July 2008

Co-organiser of the 2nd International “Language Resources for Content-Based Image Retrieval” Workshop, held in conjunction with the 6th International Conference on Language Resources and Evaluation (LREC’2008)

Member of the Steering Committee of the International Association of Pattern Recognition Technical Committee 5 (IAPR TC5) on Benchmarking & Software

Co-organiser of the ImageCLEF evaluation campaign 2006, 2007 and 2008

Demo chair of the ACM International Conference on Image and Video Retrieval (CIVR) 2007

Co-chair of the MUSCLE/ImageCLEF Workshop on Image and Video Retrieval Evaluation in 2005, 2006 and 2007

Co-chair of the Computer Vision Winter Workshop (CVWW) 2005