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Classification of Actigraphy Records from Bipolar Disorder Patients Using Slope Entropy: A Feasibility Study [PDF]

open access: yesEntropy, 2020
Bipolar Disorder (BD) is an illness with high prevalence and a huge social and economic impact. It is recurrent, with a long-term evolution in most cases. Early treatment and continuous monitoring have proven to be very effective in mitigating the causes
David Cuesta-Frau   +5 more
doaj   +10 more sources

Slope Entropy Characterisation: The Role of the δ Parameter [PDF]

open access: yesEntropy, 2022
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.
Mahdy Kouka, David Cuesta-Frau
doaj   +7 more sources

Maximum-Entropy Method for Evaluating the Slope Stability of Earth Dams [PDF]

open access: yesEntropy, 2012
The slope stability is a very important problem in geotechnical engineering. This paper presents an approach for slope reliability analysis based on the maximum-entropy method.
Shuai Wang, Wei Wang, Chuanqi Li
doaj   +5 more sources

Double Feature Extraction Method of Ship-Radiated Noise Signal Based on Slope Entropy and Permutation Entropy [PDF]

open access: yesEntropy, 2021
In order to accurately identify various types of ships and develop coastal defenses, a single feature extraction method based on slope entropy (SlEn) and a double feature extraction method based on SlEn combined with permutation entropy (SlEn&PE) are ...
Yuxing Li   +4 more
doaj   +5 more sources

Slope Entropy Normalisation by Means of Analytical and Heuristic Reference Values [PDF]

open access: yesEntropy, 2022
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 resulting difference interval.
David Cuesta-Frau   +3 more
doaj   +6 more sources

Optimized Ship-Radiated Noise Feature Extraction Approaches Based on CEEMDAN and Slope Entropy [PDF]

open access: yesEntropy, 2022
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 features ...
Yuxing Li, Bingzhao Tang, Shangbin Jiao
doaj   +5 more sources

Slope Entropy Characterisation: Adding Another Interval Parameter to the Original Method

open access: yesEngineering Proceedings, 2023
Slope Entropy (SlpEn) is a recently proposed time series entropy estimation method for classification. This method has yielded better results than other similar methods in all the published studies so far.
Mahdy Kouka, David Cuesta-Frau
doaj   +2 more sources

Particle Swarm Optimization Fractional Slope Entropy: A New Time Series Complexity Indicator for Bearing Fault Diagnosis

open access: yesFractal and Fractional, 2022
Slope entropy (SlEn) is a time series complexity indicator proposed in recent years, which has shown excellent performance in the fields of medical and hydroacoustics.
Yuxing Li, Lingxia Mu, Peiyuan Gao
doaj   +3 more sources

Influence of the channel bed slope on Shannon, Tsallis, and Renyi entropy parameters

open access: yesJournal of Hydroinformatics, 2023
Velocity distribution plays a fundamental role in understanding the hydrodynamics of open-channel flow. Among a multitude of approaches, the entropy-based approach holds great promise in achieving a reasonable characterisation of the velocity ...
Gurpinder Singh   +4 more
doaj   +3 more sources

Enhancing Classification Results of Slope Entropy Using Downsampling Schemes

open access: yesAxioms
Entropy calculation provides meaningful insight into the dynamics and complexity of temporal signals, playing a crucial role in classification tasks. These measures are able to describe intrinsic characteristics of temporal series, such as regularity ...
Vicent Moltó-Gallego   +2 more
doaj   +4 more sources

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