Previous editions

  1. June, 1994: University of Portsmouth, United Kingdom.
  2. May, 1996: University of Malaga, in Torremolinos, Spain.
  3. May-June, 1998: Université Laval, Quebec City, Canada.
  4. May-June, 2000: University of Economics in Katowice, Beskidy Mountains, Poland.
  5. June, 2002: Nara, Japan.
  6. April, 2004: University of Tunis in Hammamet, Tunisia.
  7. June, 2006: the EURO Loire Valley, City of Tours, France
  8. September, 2008: University of Portsmouth, United Kingdom
  9. May, 2010: University of Sfax, Tunisia.
  10. June, 2012: the Canadian Operational Research Society, city of Niagara Falls, Canada
  11. December,2015: Tlemcen University, Algeria