Results 271 to 280 of about 7,498,456 (339)
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IEEE Transactions on Instrumentation and Measurement, 2022
During operation, power transformers are subjected to a variety of electrical and mechanical stresses, which can result in winding faults. The most common defects in transformers are axial displacement, radial deformation, and short circuits in the ...
A. Abbasi, C. P. Gandhi
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During operation, power transformers are subjected to a variety of electrical and mechanical stresses, which can result in winding faults. The most common defects in transformers are axial displacement, radial deformation, and short circuits in the ...
A. Abbasi, C. P. Gandhi
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Fuzzy Dispersion Entropy: A Nonlinear Measure for Signal Analysis
IEEE transactions on fuzzy systems, 2022Entropy is a powerful tool for nonlinear analysis of time series. We have recently introduced dispersion entropy (DispEn), which has widely drawn attention from researchers in a variety of settings in data analysis.
M. Rostaghi +3 more
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Multiscale Diversity Entropy: A Novel Dynamical Measure for Fault Diagnosis of Rotating Machinery
IEEE Transactions on Industrial Informatics, 2021In this article, a fault diagnosis scheme based on multiscale diversity entropy (MDE) and extreme learning machine (ELM) is presented. First, a novel entropy method called diversity entropy (DE) is proposed to quantify the dynamical complexity.
Xianzhi Wang, Shubin Si, Yongbo Li
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Measurement of granular entropy
Physical Review E, 2009Recently, Dean and Lefèvre [Phys. Rev. Lett. 90, 198301 (2003)] developed a method for testing the statistical mechanical theory of granular packings proposed by Edwards and co-workers [Physica A 157, 1080 (1989); Phys. Rev. E 58, 4758 (1998)]. The method relies on the prediction that the ratio of two overlapping volume histograms should be exponential
Mcnamara, Sean +4 more
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Optimized Fuzzy Slope Entropy: A Complexity Measure for Nonlinear Time Series
IEEE Transactions on Instrumentation and MeasurementEntropy has long been a subject that has attracted researchers from a diverse range of fields, including healthcare, finance, and fault detection. Slope entropy (SE) has recently been proposed as a new approach to address the shortcomings of permutation ...
Yuxing Li +4 more
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Relevant Entropy vs . Measurement Entropy
Europhysics Letters (EPL), 1986We compare two different entropies which can be assigned to measurements of an observable A in a state ρ, and comment upon their physical meaning.
R Balian, M Vénéroni, N Balazs
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THE MINIMAL κ-ENTROPY MARTINGALE MEASURE [PDF]
We introduce the notion of κ-entropy (κ ∈ ℝ, |κ| ≤ 1), starting from Kaniadakis' (2001, 2002, 2005) one-parameter deformation of the ordinary exponential function. The κ-entropy is in duality with a new class of utility functions which are close to the exponential utility functions, for small values of wealth, and to the power law utility functions ...
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GENERAL ENTROPY OF GENERAL MEASURES
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, 2002The concept of entropy is an important part of the theory of additive measures. In this paper, a definition of entropy is introduced for general (not necessarily additive) measures as the infinum of the Shannon entropies of "subordinate" additive measures. Several properties of the general entropy are discussed and proved.
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Phase entropy: a new complexity measure for heart rate variability
Physiological Measurement, 2019Objective: Information entropy is generally employed for analysing the complexity of physiological signals. However, most definitions of entropy estimate the degree of compressibility and thus quantify the randomness.
Ashish Rohila, Ambalika Sharma
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Entropy measure for orderable sets
Information Sciences, 2021Jinyan Su, Yong Deng
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