Results 11 to 20 of about 13,661 (279)
On Rényi Permutation Entropy [PDF]
Entropy, 2021 Among various modifications of the permutation entropy defined as the Shannon entropy of the ordinal pattern distribution underlying a system, a variant based on Rényi entropies was considered in a few papers.
Tim Gutjahr, Karsten Keller
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Calculating Permutation Entropy without Permutations [PDF]
Complexity, 2020 A method for analyzing sequential data sets, similar to the permutation entropy one, is discussed. The characteristic features of this method are as follows: it preserves information about equal values, if any, in the embedding vectors; it is exempt from
Alexander K. Vidybida
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Permutation Entropy: New Ideas and Challenges [PDF]
Entropy, 2017 During the last years some new variants of Permutation entropy have been introduced and applied to EEG analysis, among them a conditional variant and variants using some additional metric information or being based on entropies different from the Shannon entropy.
Karsten Keller, Keller Karsten
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Permutation Entropy Based on Non-Uniform Embedding [PDF]
Entropy, 2018 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.
Mei Tao +4 more
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Improved method for detecting weak abrupt information based on permutation entropy [PDF]
Advances in Mechanical Engineering, 2017 As a dynamic detecting method for abrupt information, permutation entropy could effectively reflect the subtle change in time series data, which is also simple and can be computed conveniently.
Yongjun Shen, Shaopu Yang
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Research on the Threshold Determination Method of the Duffing Chaotic System Based on Improved Permutation Entropy and Poincaré Mapping [PDF]
Entropy, 2023 The transition from a chaotic to a periodic state in the Duffing chaotic oscillator detection system is crucial in detecting weak signals. However, accurately determining the critical threshold for this transition remains a challenging problem ...
Jing Zhou, Yaan Li, Mingzhou Wang
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Ensemble Improved Permutation Entropy: A New Approach for Time Series Analysis [PDF]
Entropy, 2023 Entropy quantification approaches have gained considerable attention in engineering applications. However, certain limitations persist, including the strong dependence on parameter selection, limited discriminating power, and low robustness to noise.
Zhe Chen +3 more
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Permutation Entropy for Signal Analysis [PDF]
Discrete Mathematics & Theoretical Computer ScienceShannon Entropy is the preeminent tool for measuring the level of uncertainty (and conversely, information content) in a random variable. In the field of communications, entropy can be used to express the information content of given signals (represented
Bill Kay +6 more
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Entropy, 2019 The aim of this study was to monitor acute response patterns of autonomic and central nervous system activity during an encounter with Antarctica by synchronously recording heart rate variability (HRV) and electroencephalography (EEG). On three different
H. Birol Çotuk +2 more
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Entropy, 2020 An improved permutation entropy (PE) algorithm named coded permutation entropy (CPE) is proposed in this paper to optimize the problems existing in PE based on the secondary partitioning. The principle of CPE algorithm is given, and the performance of it
Huan Kang +2 more
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