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on empirical mode decomposition (EMD), AR (autoregressive) method, and volatility of data. The proposed model considers … that EMD can decompose complicated raw data into highly correlations frequency components. Further, the volatility of data … measures data change and implies the dataset's power. For the reason, this paper utilizes the data's volatility as an important …
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hospital in the Opole region in Poland, based on the empirical research among the hospital’s management and employees. The … importance. The management appears to have similar opinions as the employees. It is argued that the hospital is to a large extent …
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