A context-aware E-workflow composition based on fuzzy preferences evolutionary algorithm

The paper describes a new preference method and its use in e-workflow composition based on context-aware. The E-workflow composition is achieved by the evolution of the mobile agent based on the semantic negotiation. The mobile agent use projection-join closure to capture such message situations, the optimization of the e-workflow composition is translated into dynamic services selection with QoS global optimization. We propose a fuzzy preferences evolutionary algorithm to resolve it. The simulation results show that the approach can significantly improve the performance. It adapts well to the changes of uncertainty environments.