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physics.med-ph2001
What does the correlation dimension of the human heart rate measure?
M. Sakki, J. Kalda, M. Vainu +1
It is shown that in the case of human heart rate, the scaling behaviour of the correlation sum (calculated by the Grassberger-Procaccia algorithm) is a result of the interplay of v…
physics.med-ph2001
Zipf's law in human heartbeat dynamics
J. Kalda, M. Sakki, M. Vainu +1
It is shown that the distribution of low variability periods in the activity of human heart rate typically follows a multi-scaling Zipf's law. The presence or failure of a power la…