Showing papers by "Ying Cheng published in 2012"
TL;DR: It is discovered that CoRCS-Net is ‘scale-free’, and it is constructed by few “active services’ and a great deal of “silent services”, and the probability (or invoking times) for the services in a CoRCs-Net to be invoked for service composition decays as a power-law.
Abstract: Existing works on service composition are primarily based on the requirements of service composition, such as describing language supporting service composition, service composition framework, mechanism and method for service composition, and service composition validation. Few works have been carried out from the perspective of combinable relationship among composite services and composition service network. This article emphasises on combinable relationship-based composition service network, i.e. CoRCS-Net. The principles for establishing and modelling CoRCS-Net were studied, and nine combinable relationships among services in CoRCS-Net were investigated and 14 elementary evolving operators for CoRCS-Net dynamic evolution were designed. According to the definition of scale-free network SFN and the investigations on its related research achievements, it is supposed that ‘CoRCS-Net is a scale-free network’ in this study. In order to prove the theoretical hypothesis, the concepts of combinable strength and variation of combinable strength were introduced, and combinable strength is used to describe the invoking times of a service being invoked for service composition. First we calculate the real time variation of combinable strength of an arbitrary service in CoRCS-Net, and then obtain the corresponding real time combinable strength and investigate its distribution for all services in CoRCS-Net. It is discovered that ‘ like many nature and social phenomenon, CoRCS-Net is “scale-free”, and it is constructed by few “active services” and a great deal of “silent services”. In the process of service composition, the invoking times for majority services are very small, while only few services are invoked frequently, and the probability or invoking times for the services in a CoRCS-Net to be invoked for service composition decays as a power-law’ .
88 citations
23 Apr 2012
TL;DR: In this paper, the authors considered the revenue, time, and reliability for the three sides in the resource service-transaction process faced with uncertain factors under decentralized decision-making conditions.
Abstract: The resource service transaction in service-oriented manufacturing systems is one of the key issues in deciding its practical implementation and application. In order to enhance the benefit of the three sides or users (i.e. resource service provider, resource service demander, and resource service agent or operator (agent)) using service-oriented manufacturing systems, the comprehensive utility models consider the revenue, time, and reliability for the three sides in the resource service-transaction process faced with uncertain factors under decentralized decision-making conditions are established first. Then the related comprehensive utility model for the resource service transaction chain of ‘multiple resource service providers – one agent – multiple resource service demanders’ under a centralized decision-making condition is proposed and discussed. The existence of utility equilibrium between resource service provider and agent is studied and proved. As is the optimal decision of a resource service tra...
51 citations
25 Jul 2012
TL;DR: The new networked manufacturing mode, cloud manufacturing (CMfg), is provided with a new operation and transaction mode, and the characteristics of different cloud services (CSs), considering the multi-layer of logistics, information flow and capital flow are analyzed.
Abstract: The new networked manufacturing mode, cloud manufacturing (CMfg), is provided with a new operation and transaction mode. To support the research, development and application of the mode and service platform of CMfg, manufacturing resource and capability cloud service transaction (CST) of the tripartite users (i.e., provider, operator and consumer) is described briefly, and the detailed transaction flow is provided. With the characteristics of different cloud services (CSs), considering the multi-layer of logistics, information flow and capital flow, the transactions on hardware-class, software-class, product-class and capability-class CSs are analyzed respectively. Finally, the important and difficult problems urgently to be solved in the whole CST process are pointed out.
13 citations