Edge services are transferred data processing, application running, and implementation of some functional services from cloud central server to network edge server to provide services. Combined edge service can effectively reduce task computation in the cloud, shorten transmission distance of processing data, quickly decompose task of service request, and select the optimal edge service combination to provide service for users. BAS is an efficient intelligent optimization algorithm, which can achieve efficient optimization and neither need to know the specific form of function nor need gradient information. This paper designs an edge service composition model based on edge computing and proposes a method about edge service composition by BAS optimization algorithm. Our proposed method has obvious advantages in service composition efficiency compared with service composition method based on PSO or WPA heuristic algorithm. Compared with cloud service composition method, our proposed method has advantages of shorter service response time, low cost, and high quality of user experience.

中文翻译：

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基于BAS算法的边缘服务组合方法研究

边缘服务是将数据处理、应用运行和某些功能服务的实现从云中心服务器转移到网络边缘服务器以提供服务。组合边缘服务可以有效减少云端的任务计算量，缩短处理数据的传输距离，快速分解服务请求的任务，选择最优的边缘服务组合为用户提供服务。BAS是一种高效的智能优化算法，可以实现高效的优化，不需要知道函数的具体形式，也不需要梯度信息。本文设计了一种基于边缘计算的边缘服务组合模型，并提出了一种基于BAS优化算法的边缘服务组合方法。与基于PSO或WPA启发式算法的服务组合方法相比，我们提出的方法在服务组合效率上具有明显优势。与云服务组合方法相比，我们提出的方法具有服务响应时间短、成本低、用户体验质量高等优点。