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Items for "correlation dimension"

Normalized correlation dimension for heart rate variability analysis

In this paper we use the concept of large-scale dimension densities to analyze heart rate variability data...

Keywords: congestive heart failure, correlation dimension, Heart rate variability

10/2006 | Biomedizinische Technik, Walter de Gruyter
Chaotic indices and canonical ensemble of heart rate patterns in small-for-gestational age fetuses

Aims: We studied how linear and nonlinear heart rate dynamics differ between normal fetuses (n=135) and uncomplicated small-for-gestational age (SGA) fetuses (n=65), aged 32–40 weeks' gestation.

Methods: We analyzed each fetal heart rate time series for 20 min...

Keywords: approximate entropy, canonical correlation analysis, chaotic dynamics, correlation dimension, small-for-gestational age

06/2007 | Journal of Perinatal Medicine, Walter de Gruyter