Classification of Actigraphy Records from Bipolar Disorder Patients Using Slope Entropy: A Feasibility Study [PDF]
Entropy, 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 +2 more
exaly +4 more sources
Research on Sea State Signal Recognition Based on Beluga Whale Optimization–Slope Entropy and One Dimensional–Convolutional Neural Network [PDF]
SensorsThis study introduces a novel nonlinear dynamic analysis method, known as beluga whale optimization–slope entropy (BWO-SlEn), to address the challenge of recognizing sea state signals (SSSs) in complex marine environments. A method of underwater acoustic
Yuxing Li, Zhaoyu Gu, Xiumei Fan
exaly +4 more sources
Double Feature Extraction Method of Ship-Radiated Noise Signal Based on Slope Entropy and Permutation Entropy [PDF]
Entropy, 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 +2 more sources
Slope Entropy Characterisation: The Role of the δ Parameter [PDF]
Entropy, 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
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Slope Entropy Normalisation by Means of Analytical and Heuristic Reference Values [PDF]
Entropy, 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 +2 more sources
Optimized Ship-Radiated Noise Feature Extraction Approaches Based on CEEMDAN and Slope Entropy [PDF]
Entropy, 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
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Fractal 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, Li Yuxing
exaly +3 more sources
Maximum-Entropy Method for Evaluating the Slope Stability of Earth Dams
Entropy, 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
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Slope Entropy Characterisation: An Asymmetric Approach to Threshold Parameters Role Analysis [PDF]
EntropySlope Entropy (SlpEn) is a novel method recently proposed in the field of time series entropy estimation. In addition to the well-known embedded dimension parameter, m, used in other methods, it applies two additional thresholds, denoted as δ and γ, to ...
Mahdy Kouka +2 more
doaj +2 more sources
Journal of Rock Mechanics and Geotechnical EngineeringSpatial variability of soil properties imposes a challenge for practical analysis and design in geotechnical engineering. The latter is particularly true for slope stability assessment, where the effects of uncertainty are synthesized in the so-called ...
Chengxin Feng +2 more
exaly +3 more sources