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Based on the investigation above background of stem cell research, this paper obtains the research topics of different time-window series with LDA topic segment model, and then the emerging topics are identified and judged according to the assumption of emerging topic definition. This paper proposes a new method to detect and identify the emerging topic in the topic evolution model. In this method,...
Considering the asymmetry of return distributions and asymmetric impact of positive and negative returns on the quantiles, the paper puts forth a new conditional autoregressive value-at-risk by regression quantiles model with asymmetric absolute values and slops (AAVS-CAViaR) quantile specification for heavy-tail data applications. An empirical study on the evolution patterns of market risk of wheat...
Based on analyzing the current employment incentive system of the university of China, this paper develops a practical incentive compatibility model of employment work. This model solves the defect of employment incentive system of some universities of China. The defect is that because of information asymmetry, the employment rate given by university manager is not incentive compatible probably, and...
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