A Markovian Entropy Measure for the Analysis of Calcium Activity Time Series.

The value of the Hurst Exponent H ranges between 0 and 1, and 0.5 < H < 1 indicates persistent dynamics in the time series (if the value is increasing at a given time point, it is more likely that the value will continue to increase in the following time points, and similarly for a decreasing trend) whereas 0 < H < 0.5 indicates antipersistent dynamics (if the value is increasing at a given time point, it is more likely that the value will decrease in the following time points, and vice versa) and H = 0.5 indicates a purely random time series [ 34 ].

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