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This paper addresses the problem of automated agent-based one-to-many negotiation for multi-issue service pro-curement and presents a robust negotiation mechanism to enhance the procurement process. Software agents represent service sellers and service buyers. Agents are assumed to have goals and constraints when buying and selling services. Automating the service procurement process can provide fast...
Cloud computing is an Internet-based computing. It relies on sharing computing resources which are delivered as services on the Internet. Web service is one of the most important types of services that can be used in cloud computing. But many of them may be similar in some functional or nonfunctional properties, making how to recommend a suitable web service a problem facing many developers. Researchers...
Increasing numbers of Internet users have recently been gaining interest in streaming services as they watch their favorite live football match or listen to the latest breaking news online through voice or video streaming services. It is known that in streaming services, even a small amount of quality disturbance can irritate users, in the form of, for example, blurred pictures or a lost scene. This...
In this paper, we propose a novel framework WSCRec, in which historical information (i.e., execution logs) are utilized to facilitate the process of Web service composition. According to the execution logs of composite services, appropriate services which have been proved to be more reliable and robust and have higher probability to fulfill users' demands are located.
Computer networks are dramatically extending all over the world. They have diverse topologies and benefit from various technologies. They can also support users with different types of services. Nevertheless, all of them have an ultimate purpose in common. They should satisfy their users with high-quality services. To achieve this goal, Quality of service (QoS) solutions are required. However, they...
For the issues of the existing method in the selection of web service blindness and customer service evaluation incredible, this paper presents a web service selection method based on credible user recommended and QoS. Firstly, searching for recommended user from the credible user group, distinguish the current user into the new user or old user, then adopt different recommended algorithm to form...
Nowadays the number of the services delivered to the mobile users grows rapidly. The guaranty of high quality level for each one service becomes even more complex. This requires new approaches for evaluating the quality parameters (provider centric) from one side and the customer satisfaction (customer centric) from the other side. The paper proposes an approach for the customer satisfaction, where...
This study starts from some management questions and uses the improved SERVQUAL scale and the improved SERVPERF scale to do the research on Shanghai schools' educational service to find the relations between perceived service quality, student satisfaction and student loyalty. On the basis of which, this study compares these two scales to find differences. By collecting the data and testing the hypotheses,...
Self-adaptive systems are capable of changing their behaviour at runtime to meet target constraints. An important research question is how quality of service models can inform runtime adaptation. We sketch one solution to this question by application of control theory to improve performance of queued systems by means of architectural adaptation. Previous research by our group has shown how Auto Regressive...
In this paper userspsila short-term delay and throughput fundamental properties under basic opportunistic scheduling policies, required to support high throughput wireless communication systems with integrated multimedia services, are studied. Among the objectives of this work is to determine at what extent opportunistic scheduling policies can be used to support real-time services in addition to...
As Grid networks grows, the complexity of resource management in Grid networks dramatically increases. To manage the Grid resources efficiently, policy based resource management system is suitable. However, the policy which made at a moment could not be appropriate to other time because the condition of the grid resources with time space changes. Thus, in this paper, we propose asynchronous policy-based...
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