Figure 1: The two-layered granular system. The gaussian-velocity distributions in the second layer indicate that the grains are more 'gas-like' in their behaviour than has previously been found in ...
Data clustering is the process of grouping data items so that similar items are placed in the same cluster. There are several different clustering techniques, and each technique has many variations.
It may be misleading to estimate value-at-risk (VAR) or other risk measures assuming normally distributed innovations in a model for a heteroscedastic financial return series. Using the t-distribution ...
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