An efficient approach to group role assignment with conflicting agents

Group role assignment with constraints (GRAC) is an important task in Role-Based Collaboration (RBC). The complexity of group role assignment becomes very high as constraints are introduced. This paper describes the group role assignment problem with conflicting agents; analyzes the complexity of the problem, proposes a solution based on the IBM ILOG CPLEX optimization package; conducts comparisons with our early work by experiments; analyzes the solutions´ performances, and indicates the improvement of this proposed solution. The contribution of this paper includes: clarifying the complexity of the discussed problem; proposes a better solution, and verifies its efficiency and practicability.