https://hal.inria.fr/inria-00539046Barrière, OlivierOlivierBarrièreAPIS - Analysis of irregular Processes, Images and Signal,applications in biology and medicine - Inria Saclay - Ile de France - Inria - Institut National de Recherche en Informatique et en AutomatiqueLévy Véhel, JacquesJacquesLévy VéhelAPIS - Analysis of irregular Processes, Images and Signal,applications in biology and medicine - Inria Saclay - Ile de France - Inria - Institut National de Recherche en Informatique et en AutomatiqueLocal Holder regularity-based modeling of RR intervalsHAL CCSD2008[MATH.MATH-PR] Mathematics [math]/Probability [math.PR]Fermin, Lisandro2010-11-23 18:00:022022-02-04 03:19:012010-11-23 21:09:06enConference papersapplication/pdf1We analyze the local regularity of RR traces from ECG through the computation of the so-called Hölder exponents. These exponents are at the basis of multifractal analysis, which has been shown to be relevant in the study of RR data. While multifractal analysis yields a global picture of the (statistical) distribution of regularity, we focus here on its time evolution. We show that this evolution is strongly correlated with the signal itself, a feature that seems to have remained unnoticed so far. We use this fact to build realistic synthetic RR traces.