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Community structure in network representation of increments in beat-to-beat time intervals of the heart in patients after heart transplantation. (English) Zbl 1371.92012

Summary: The network representations in the characterization of time series complexity is a relatively new but quickly developing branch of time series analysis. The changes in beat-to-beat time intervals, called \(RR\)-increments, can be mapped into the directed and weighted network. The vertices in this network represent \(RR\)-increments and edges correspond to pairs of subsequent increments. We show that community structure analysis, called \(p\)-core analysis, is an effective measure which allows the evaluation of the information on dynamical processes represented by networks constructed from \(RR\)-increments.

MSC:

92B15 General biostatistics
62M10 Time series, auto-correlation, regression, etc. in statistics (GARCH)
62P10 Applications of statistics to biology and medical sciences; meta analysis
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