Estimation of time-delayed mutual information and bias for irregularly and sparsely sampled time-series

Details Estimation of time-delayed mutual information and bias for irregularly and sparsely sampled time-series Estimation of time-delayed mutual information and bias for irregularly and sparsely sampled time-series

2011-10-07

arxiv.org/abs/1110.1615v1

Nonlinear Sciences

Chaotic Dynamics

Scientific paper

A method to estimate the time-dependent correlation via an empirical bias estimate of the time-delayed mutual information for a time-series is proposed. In particular, the bias of the time-delayed mutual information is shown to often be equivalent to the mutual information between two distributions of points from the same system separated by infinite time. Thus intuitively, estimation of the bias is reduced to estimation of the mutual information between distributions of data points separated by large time intervals. The proposed bias estimation techniques are shown to work for Lorenz equations data and glucose time series data of three patients from the Columbia University Medical Center database.

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