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In this paper, two degradation models are developed in terms of degradation signals of systems with some Wiener diffusion processes under pre-specified periodical calibrations. Some detailed results on two models are given by solving some recursive equations. The system reliability is defined as the probability that the degradation signals do not exceed a threshold value by time . Two methods for...
This paper studied the modeling and simulation of the public opinion propagation in the small-world network. The public opinion information propagation characteristics were firstly analyzed, and different states of the people in the propagation environment were proposed. Based on that, this paper constructed the public opinion propagation model based on the agent modeling method, and proposed the...
This article studies contract design problems. Based on the introduction and analysis of existing contract models and contract design methods, introduces and analyzes the detailed design thoughts, methods and models of complete contract, compares the basic assumption of complete contract and incomplete contract, and analyzes the reasons of incompleteness. Besides, the article also introduces and analyzes...
In supply chain management system there are a large number of event logs recording the performers who initiate or complete the activities. Virtual organization structure is so flexible as to be more suitable for supply chain management. However the existing organizational structure modeling methods are difficult to model virtual structure. This paper design an automatic modeling method of virtual...
How to analyze the complex service processes is a key issue of service process management in rapidly changing environment. In this paper, a new approach to reachability analysis of service process model is proposed. The polychromatic sets (PS) theory is introduced and the PS model of service process is established. Based on PS contour matrix, the physical reachability and the time reachability are...
On Dec 8th, 2003, the top price levels showed in the limit order book were enlarged from three to live in Chinese stock market, and the transparency was largely increased. The paper studies on the contribution of every quote price to price discovery, and compares with contribution of before and after transparency was increased. The results show that there exists significant difference of information...
Business process management system is the base of realization of Economic Business. Exact business process models can ensure the normal running of business process management system. With the constantly change of market requirement, process models don't keep stable. There are large mount of process logs in business process management system. These logs involve information of various business processes...
As e-commerce always suffers from the uncertainty, cheats and attacks, concepts of trust and risk are brought in to enhance on-line business. Several models or frameworks for dealing with uncertainty and threats in cyberspace have been proposed in the literature, but few explicitly consider trust and risk as two separate factors that influence different aspects of on-line interactions independently...
On the condition of limited resources, businesses should put the resources on those profitable customers. So it is necessary to carry out the customer segmentation, especially for the air cargo industry being in the fierce competition. Drawing on the theory of customer value, and combining it with the management features of the air cargo customers to construct the forecasting model of customer value,...
This paper explores the background and characteristics of virtual enterprises, the cooperation motivation in virtual enterprises. Then we study the stability of the cooperation based on the noisy polymorphic population replicator dynamic model, and analyze how the uncertainty caused by the fierce rivalry or other outside factors influences the cooperation strategy of the member enterprises. The result...
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