(6) 2015 May 15-19, The 28th International Conference of The Jangjeon Mathematical Society, Akdeniz University Antalya, Turkey, Topics: Pure and Applied Mathematics & Statistics, Mathematical Physics.

(5) 2014 June 16-19, Second Joint International Meeting of the Israeli Mathematical Union (IMU) and the American Mathematical Society (AMS), Tel-Aviv and Bar-Ilan Universities, Topological Graph Theory and Map Symmetries.

(4) 2013 August 1-4, 26th International Conference of Jangjeon Mathematical Society& Acharya Institute Of Graduate Studies, Bangalore, India & Global Advancement of Mathematics.

(3) Expert Workshop on Geometric Combinatorics, University of Haifa, Haifa, November 2007.

(2) The Workshop Permutation Patterns, University of Haifa, Haifa, May 2005.

(1) The Third International Conference on Pattern Avoiding Permutations, University of Florida, Gainesville, Florida, March 2005.