摘要： 资源预留机制是保证网格远程教育服务质量的重要措施，现有的预留机制有其局限性。为获得稳定的资源和服务质量，将资源预留机制与计算经济相结合，提出一种决定预订资源数量的数学模型。该模型综合考虑服务提供方的经济利益和声誉度，在合理的假设下对一个双目标的优化问题作了简化处理，通过数值计算和分析确定了预订资源数量的最佳限额。

关键词: 远程教育, 网格, 资源预留, 计算经济

Abstract: Mechanism of resource reservation is an important approach for assuring quality of service of long-distance education. The present reservation mechanism has its limitation. In order to abtain the stable resource and quality of service, this paper proposes a mathematic model which can determine the resource booking quantity, combining resource reservation with computing economics. In this model, the economic interest and reputation index of service supplier are taken into account, and the optimization problem of two targets under hypothesis is simplified in reason. Through numeric calculation and analysis, an optimal point for the advance booking of resource is showed.

Key words: long-distance education, grid, resource reservation, computing economics

中图分类号: 

• TP393.02