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Academic periodical is able to manifest scientific competitiveness of one country, and also is an important manifestation form of scientific productivity. Therefore, the research on international journal impact factor modeling has certain practical significance. Based on the gene expression programming, this paper establishes nonlinear model between journal impact factor and related indexes. The model...
The traditional path loss model of log distance assumes that the distance between users and access points has the exponential decline relationship with the received signal strength. However, a large number of experiments show that the model is not accurate. Therefore, the relationship between the distance and the RSS can not be summarized by a simple function. We can investigate the hidden principle...
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