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GPSR-BB (Gradient Projection for Sparse Reconstruction) algorithm is a popular CS (compressed sensing) reconstruction method. lt performs well for questions which have sparse solution. This approach is originally developed in the context of unconstrained minimization of a smooth nonlinear function F, and it uses the search direction of the Quasi-Newton method. So its shortcomings is the same as the...
According to the active service and future-oriented service of service-mining theory, as well as the theory of Kuiperspsila Qualitative Simulation, this paper puts forward a model of Qualitative Simulation that describes and predicts the changing process of customer churn. By applying causality graph, the factor system influencing customer churn is designed and concepts like decision variables, state...
Customer classification refers to a process in which customer information is divided into several sets of same characteristics by certain rules. According to different customer sets, we acquire different customer sets' behavior, and provide them with individual service. Thus customer's satisfaction and loyalty will be promoted highly. This paper employs BP neural networks to classify customer, and...
In this paper, we introduce the concept of service-mining and show how this mining helps vehicle maintenance centers to improve their services. We propose the conceptual architecture of service-mining system and the data structure. We also propose a framework of Service-mining System, which includes function modules, supporting components and hierarchy. Some potential service patterns that are discovered...
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