Chunli Xie

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—Parameters optimization plays an important role for the performance of least squares support vector machines (LS-SVM). In this paper, a novel parameters optimization method for LS-SVM is presented based on chaotic ant swarm (CAS) algorithm. Using this method, the optimization model is established, within which the fitness function is the mean square error(More)
SOA (Service-oriented Architecture) is becoming the major architecture for building complex Web service systems. In SOA, the lifecycle of Web services consists of four stages: service publication, service discovery, service binding and service execution. Faults may occur in any stage and cause a failure of service. The reliability of services depends on not(More)
Based on the analyzing of current e-commerce experiment teaching and the rule of teaching e-commerce, the fundamental of e-commerce experiment design is presented and effective e-commerce experiment architecture is constructed. The proposed architecture integrated e-commerce project design, marketing, security, e-payment, logistics, etc. into B2C, C2C and(More)
Fault tolerance by redundancy is a key technique for improving web services reliability. But, the reliability and fault tolerance are not well supported by Service-oriented architecture (SOA) conceptual model.Most of the existing analytical models to predict the reliability of web services assume their structures are static which do not conform to reality(More)