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The purpose of establishing buffer operators is to improve the smooth degree, then increase the simulation accuracy of the model. This paper probed into modeling mechanism of several typical buffer operators such as the arithmetic buffer operators, the buffer operators with monotonic function and weighted buffer operators. The results indicates that after infinite buffer operators, no matter we adopt...
Configuration optimization of physical prototype for 6–3–3 parallel mechanism was modeled mathematically, and then an idea of embedding finite element method in optimization algorithm was presented for solving optimizing model. In optimization design toolbox of ANSYS software, configuration optimization of the parts for the mechanism was realized by means of establishing parameterized model with parts,...
Competitiveness measurement of ports should consider all internal and external factors. In this paper, we use a number of quantitative measurement indicators to evaluate the actual situation of Shenzhen port. By using factor analysis model, a small number of common factors are extracted to represent the large number of measurement indicators. Furthermore, this paper computes the evaluation scores...
In this paper, shapely value method is used to solve the problem of benefits distribution of the supply chain as a virtual dynamic alliance, and through a correction algorithm with an example, the risks values and interests shared by the enterprises in the supply chain is analyzed based on the acceptable satisfaction degree analysis, providing a reasonable feasibility strategy allocation of the interests.
In this paper, a software project risk analysis model based on evidential reasoning approach is presented. The modeling process consists of four phases: specification of the model structure, assessment of evidence strength, determination of software project risks, and risk monitoring and analysis. Using the changes of strength of evidences obtained from the process of software project development,...
In this paper, we considered the problem of sample imbalance in the context of gene selection. Based on simple random sampling, two evaluation models were proposed to investigate the effect of sample imbalance on gene selection. Under the proposed evaluation models, the performances of five famous gene selection methods on the unbalanced data were compared. The experimental results indicated that...
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