Abstract
A data-adaptive algorithm for the entropy-based analysis of structural regularities (complexity) in multivariate signals is proposed. This is achieved by combining multivariate sample entropy with a multivariate extension of empirical mode decomposition, both data-driven multiscale techniques. The proposed analysis across data-adaptive scales makes the approach robust to nonstationarity, a critical issue with information theoretic measures. Simulations on synthetic and real-world physiological data support the approach and validate the hypothesis of increased complexity for unconstrained as compared to constrained (due to e.g. ageing or illness) biological systems.
Original language | English |
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Title of host publication | 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) |
Number of pages | 4 |
Publisher | IEEE |
Publication date | 1 Mar 2012 |
Pages | 3901-3904 |
ISBN (Print) | 9781467300469 |
DOIs | |
Publication status | Published - 1 Mar 2012 |
Event | IEEE International Conference on Acoustics, Speech and Signal Processing - Kyoto, Japan Duration: 25 Mar 2012 → 30 Mar 2012 |
Conference
Conference | IEEE International Conference on Acoustics, Speech and Signal Processing |
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Country/Territory | Japan |
City | Kyoto |
Period | 25/03/2012 → 30/03/2012 |