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This paper starting from the teacher assessment data, analyze whether the evaluation indicators are suitable for factor analysis, then find the two factors which played a decisive role in evaluation indicators these indicators were interactive and related, so as to achieve the purpose of simplifying calculation. Final get the teachers' rankings by factor analysis.
The bivariate normal mixture GARCH model is introduced in this paper, and applied to research the dynamic volatility features and the time-varying correlation structure of Shanghai Composite Index and Shenzhen Component Index in Chinese stock markets. Empirical results demonstrate that the bivariate normal mixture GARCH model outperforms other competing GARCH models, in terms of explaining the properties...
A new direction of arrival (DOA) estimation method is proposed for uncorrelated and coherent sources under unknown nonstationary noise fields. The uncorrelated sources and coherent sources are resolved separately. In this way the output data of the array are used repeatedly, and more sources can be estimated. Compared with the conventional methods, the new method can resolved more sources using the...
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