Service Composition And Optimization Method For Home Care Services

With the continuous development of the pension service industry,various kinds of pension services emerge endlessly.Chinese government has proposed a diversified pension service system based on home care services,community nursing and institutional pension.It indicates the important status of home care services.Home care services conform to the traditional Chinese culture and national conditions,and are more suitable for the elderly in China.The living standard has improved and the demand of the elderly has become diversified and complicated.As a result,a single home care service has been unable to meet the demand of the elderly.In the open Internet environment,the trustworthiness of home care services is not guaranteed.It is difficult for the elderly to find the services they need in home care services with different trustworthiness.Some dynamic changes in the implementation of home care services affect the application for the elderly.In order to solve these problems,this paper researches service composition and optimization method for home care services.Firstly,according to the historical purchase data of home care service and the features of home care service,a complex network model is built that consisting of nodes and edges.The home care services are abstracted as nodes and the relationships between services are abstracted as edges.The complex network model is prepared for service composition.Secondly,in order to solve the problem that a single home care service cannot meet the demand of the elderly,a service composition method based on complex network search is proposed.According to the demand of the elderly,this research gets the service composition by searching in the complex network.In order to solve the problem that the trustworthiness of home care service is not guaranteed,this paper measures the trustworthiness of single service and composite services to optimize service composition method.And it will push the service composition with high trustworthiness to the elderly.Thirdly,in order to cope with the dynamic changes in the implementation of home care services and achieve the optimization of home care service composition,this paper will formally define the dynamic changes in the implementation of home care services and corresponding decision actions.And a dynamic decision algorithm based on Markov decision process is proposed to select the optimal decision action.Finally,on the basis of study on service composition and optimization method for home care services,a home care services system is designed from the aspects of overall architecture,use-case diagram,function and database.Then the system is developed and tested.