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Total least squares method is applied to design the optimal control strategy for descriptor systems through the noise polluted input and output data. The traditional controller design schemes are ideally, i.e., the input-output data is treated with no noise disturbance, or only the error of the output data is considered. However, if the input and output data are both disturbance by the noise, the...
This paper proposed a research model to investigate the factors that drive users to participate in interest communities. The model takes a socio-psychological perspective of flow theory, social presence theory, social cognitive theory and organizational commitment. An online survey was conducted and data was analyzed using structural equation modeling (SEM). The results showed that cognitive absorption,...
Experts use natural language in the unstructured decision-making problems, when they are establishing weights by pairwise comparison. In this paper, attribute hierarchical model (AHM) is utilized to establish weights. And grey fuzzy number is introduced, which can fully express experts?? will and make experts?? scoring more scientific. Then a new grey fuzzy unstructured decision-making model is proposed...
In the paper, a cross chaotic map using Logistic map and Chebyshev map is presented. With the exceptionally desirable properties of non-periodical motion and non-convergence of chaos, scheme for image encryption has suggested a new and efficient way to deal with the intractable problem of fast and highly secure image. In order to realize image encryption, every pixel of image is randomly changed according...
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