co-chair & co-organizer
Bridging Formal and Conceptual Semantics (BRIDGE-18)
workshop at the 30th European Summer School in Logic, Language and Information (ESSLLI 2018), 6-17 August 2018, Sofia, Bulgaria

co-chair & co-organizer
Specificity, definiteness and article systems across languages
workshop at the 40th Annual Meeting of the DGfS, 7-9 March 2018, University of Stuttgart

co-organizer
Workshop on Reference
Düsseldorf, Germany, 16-17 November 2017

PC member
12th Tbilisi Symposium on Language, Logic and Computation (TbiLLC 2017)
Lagodekhi, Georgia, 18-22 September 2017

co-organizer
12th International Workshop on Tree Adjoining Grammars and Related Formalisms (TAG+12)
Düsseldorf, Germany, June 29 – July 1, 2016

co-chair & co-organizer
Workshop Bridging Formal and Conceptual Semantics (BRIDGE-14)
Düsseldorf, Germany, April 12–13, 2014

co-organizer
Workshop on Common Ground and Discourse modeling
Düsseldorf, Germany, September 18-19, 2014

OC member
25th European Summer School in Logic, Language and Information (ESSLLI 2013)
Heinrich Heine University, Du ̈sseldorf, Germany, August 5-16, 2013

chair
Student Session of 20th European Summer School in Logic, Language and Information (ESSLLI 2008)
Hamburg, Duitsland, 4–16 Augustus 2008

organizer
DIP Colloquia, ILLC/UvA (2005-2008)

co-chair
Student Session, 18th European Summer School in Logic, Language and Information (StuS 2008)
Malaga, Spain, 31 Juli–11 Augustus, 2006

co-chair & organizer
Szklarska Poreba Workshop 7
Szklarska Poreba, Polen, 3–7 March 2006

co-chair & organizer
Szklarska Poreba Workshop 6
Szklarska Poreba, Polen, 26 February–1 March 2005

co-organizer
6th International Tbilisi Symposium on Language, Logic and Computation (TbiLLC 2005)
Batumi, Georigia, 12–16 September 2005

co-organizer
5th Tbilisi Symposium on Language, Logic and Computation (TbiLLC 2003)
Tbilisi, Georgia, 26–29 August 2003

co-organizer
7th Symposium of Logic and Language (LoLa7)
Pécs, Hungary, 26–29 Aug 2002