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A role based hierarchical group awareness model (RHGAM) on the basis of the previous research was presented in this paper. Regarding role as the basis of the group cooperation, firstly RHGAM constructed a group cooperation environment (GCE), and then GCE was extended by group awareness content, awareness hierarchy, the task decomposition rule. The model divided the awareness information into four...
Workflow management has been a hot issue in both academic and industrial research. Deadline assignment is of great significance in workflow management. In order to avoid deadline violation, designers need an approach to evaluate the upper bound of turnaround time of a workflow process, especially in the early stage of the process design. In this paper, a method is proposed to evaluate the latest finishing...
Performance analysis for workflow models has been recognized as one of the most significant tasks in workflow management. Time performance evaluation methods are needed for workflow designers to estimate the average turnaround time of processes in the early stage of workflow system development. Based on extending fuzzy temporal workflow nets by introducing choice possibilities for transitions in structural...
Using rough sets to reason from data hinges on three basic concepts of rough sets theory: approximations, decision rules and dependencies. Main objective of reasoning from data is finding hidden patterns in data. Genetic algorithms provides a general frame to optimize problem solution of complex system without depending on the domain of problem, it is robust to many kinds of problem. In this paper...
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