基于语义描述的资源协同机制

为进一步提高资源协同的效率,从资源的静态功能特性出发,定义了相似度函数,给出了基于功能的资源协同算法;从资源的实时状态信息出发,给出了基于运行时QoS特性的资源协同算法.建立了综合考虑资源的功能特性和运行时QoS特性的资源协同机制,通过基于功能的资源协同工作,提供满足用户静态功能要求的资源候选集;通过基于运行时QoS特性的资源协同工作,从满足用户静态功能要求的资源候选集中实时动态地选择满足用户QoS要求的优质资源.实验结果表明,提供的基于语义描述的资源协同机制提高了资源协同的成功率、服务质量和运行效率.

Semantic-based resource cooperation mechanism

In order to improve the efficiency of the resource cooperation,according to the static functional characteristics,the similarity function and function-based resource cooperation algorithm was provided;according to the runtime QoS characteristics,the runtime QoS resource cooperation algorithm was given.On the basement of above work,a resource cooperation which combines the effects of static functional resource cooperation and runtime QoS nonfunctional resource cooperation was put forward.The top-rank candidate resources which were able to satisfy the end user's task were provided through the function-based resource cooperation,and the high quality resource could be gotten from the given top-rank candidate resources through the runtime QoS resource cooperation.The evaluation on the cooperation mechanism shows that the semantic-based service resource cooperation mechanism promotes the success rate,service quality and executes efficiency for resource cooperation.