Applicability of the permutation largest slope entropy to strange nonchaotic attractors
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DOI: 10.1007/s11071-016-3158-6
Abstract: We extend the permutation largest slope entropy (PLSE) to the detection of strange nonchaotic attractors (SNA). The initial time series derived from a quasi-periodically forced chaotic map is first transformed into a series of symbols… read more here.
Keywords: strange nonchaotic; entropy; slope entropy; largest slope ... See more keywords
Optimized Ship-Radiated Noise Feature Extraction Approaches Based on CEEMDAN and Slope Entropy
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DOI: 10.3390/e24091265
Abstract: Slope entropy (Slopen) has been demonstrated to be an excellent approach to extracting ship-radiated noise signals (S-NSs) features by analyzing the complexity of the signals; however, its recognition ability is limited because it extracts the… read more here.
Keywords: extraction approaches; slope entropy; extraction; feature extraction ... See more keywords
Slope Entropy Characterisation: The Role of the δ Parameter
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DOI: 10.3390/e24101456
Abstract: Many time series entropy calculation methods have been proposed in the last few years. They are mainly used as numerical features for signal classification in any scientific field where data series are involved. We recently… read more here.
Keywords: role parameter; series; classification; slope entropy ... See more keywords
Slope Entropy Normalisation by Means of Analytical and Heuristic Reference Values
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DOI: 10.3390/e25010066
Abstract: Slope Entropy (SlpEn) is a very recently proposed entropy calculation method. It is based on the differences between consecutive values in a time series and two new input thresholds to assign a symbol to each… read more here.
Keywords: entropy normalisation; time series; reference; slope entropy ... See more keywords