We will investigate so-called commuting operators and their relationship to bisymmetry and domination. In the case of bisymmetric aggregation operators we will show a sufficient ...
Several new results in the field of aggregation operators are recalled. Most of them were or will be presented at 24th Linz Seminar, AGOP’2003, IFSA’2003 and EUSFLAT’2003. ...
A common optimization technique in the OLAP application domain is the use of summary aggregate data. For an appropriate support of analysis hot spots, we propose a query based agg...
Dynamic constraint aggregation was recently introduced by Elhallaoui et al. [Dynamic aggregation of set partitioning constraints in column generation. Operations Research 2005; 53...
Issmail Elhallaoui, Guy Desaulniers, Abdelmoutalib...
A framework for simulation of dynamics of mechanical aggregates has been developed. This framework enables us to build model of aggregate from models of its parts. Framework is a ...