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In this paper, a uniform method is presented for computing the minimum translational distance (MTD) between a pair of ellipsoids. This article deduces a necessary and sufficient condition of the witness point-pair which achieve MTD value and reliable criteria for determining their spatial relation. Experimental results show the algorithm converge after a few iteration whether two objects overlap or...
Taking soybean futures on Dalian Commodity Exchange for example, the paper studies the relationship between transaction behavior of agricultural futures investors and volatility of futures price. Most previous researches use parametric models to study price volatility, but estimation of volatility is efficient only when the form of general parametric models is rational and all assumptions are fulfilled...
Supplier selection is a key stage in the formation of a successful virtual enterprise. The process can be considered as a multi-objective problem. In this paper, the weighted Support Vector Regression (WSVR) technique is proposed toper form automated evaluation of the potential suppliers.Experimental results indicate that desirable outcome can be obtained by using the WSVR method in supplier selection...
The paper summarizes current technologies of dynamic web service composition. Then, based on the existing technologies, we raise a new solution for dynamic web service composition. We make use of the knowledge of domain ontology. On the one hand, the user’s requirement was broken down into a series of abstract web services, according to the logic of business processes. On the other hand, through establishing...
This paper identifies the problem which existed in the application of the current inventory information system in the enterprise at present, analyzed and designed the inventory information system again based on workflow technology. Through analyzing the workflow relation data, the inventory management information system is developed under the control of the workflow engine, including the data structure...
Credit values are regarded as an important factor in E-commerce trades by both buyer and seller, so they look forward to increasing their credit values. A feasible approach is to gather the credit values distributed in different E-commerce websites. But the protection policies of E-commerce websites result in the difficulty in realizing the integration of credit values in terms of policy and technology...
The strategies evaluation of e-commerce platform has affected the platform progress and development. The quality evaluation system framework of e-commerce platform strategy indicator is established. Fuzzy evaluation index system is put forward to consider various factors. As to indexes system, comprehensive fuzzy evaluation (CFE) model and methods are setup and used to check for practical case. Through...
Using the methods of primary components and factor analysis (PCFA), the security technique in E-Commerce affairs and its evaluation are analyzed. Based on PCFA model and the scores by experts, the analysis results are computed reflecting main function indexes of evaluation in security technique in E-Commerce affairs. Through case study, it can be seen that some indexes play very important role in...
The agricultural information level is on the initial stage in Hebei province, so we should pay more attention to its construction. And on this basis we can find out the influencing factors and corresponding countermeasures. To evaluate the agricultural information degree in Hebei province scientifically and accurately, this paper establish the agricultural information degree (AID) evaluation model...
In order to enhance the interoperability of device in EPA industry network control system, the characteristics of XDDL, the application flow and functions of EPA device description were discussed. The latest methods of XML parsing and the utilization efficiency of the device description data after being parsed were analyzed. A kind of parsing method and a double buffers technology used for device...
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