关键词: Web服务生态系统, 服务失效, 系统发展指标, 服务推荐

Abstract: Owing to the most of present recommendation methods were focused on users'perspective only,a service recommendation strategy from the overall perspective was proposed based on a Web service ecosystem model with dynamic factors to consider the development and stability of the whole system.In the proposed strategy,the services were divided into the new service group,the protected service group and the normal group,and the corresponding recommendation mechanisms were design.Based on the real data,the simulation model was constructed to verify the effectiveness and efficiency of the new strategy.

Key words: Web service ecosystem, service deprecation, system developing indicators, service recommendation