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Permutation Entropy Based on Non-Uniform Embedding
Mei Tao1, Kristina Poskuviene2, Nizar Faisal Alkayem1
1Department of Engineering Mechanics, Hohai University, Nanjing 210098, China.
Abstract:
A novel visualization scheme for permutation entropy is presented in this paper. The proposed scheme is based on non-uniform attractor embedding of the investigated time series. A single digital image of permutation entropy is produced by averaging all possible plain projections of the permutation entropy measure in the multi-dimensional delay coordinate space. Computational experiments with artificially-generated and real-world time series are used to demonstrate the advantages of the proposed visualization scheme.
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