Results 1 to 10 of about 610 (138)

Study on the Effect of Judgment Excitation Mode to Relieve Driving Fatigue Based on MF-DFA [PDF]

open access: yesBrain Sciences, 2022
Driving fatigue refers to a phenomenon in which a driver’s physiological and psychological functions become unbalanced after a long period of continuous driving, and their driving skills decline objectively.
Fuwang Wang   +3 more
doaj   +4 more sources

Sign Retention in Classical MF-DFA

open access: yesFractal and Fractional, 2022
In this paper, we propose a one-dimensional (1D) multifractal sign retention detrending fluctuation analysis algorithm (MF-S-DFA). The proposed method is based on conventional multifractal detrending fluctuation analysis (MF-DFA).
Mengdie Yang, Yudong Zhang, Jian Wang
doaj   +2 more sources

Rolling bearing fault diagnosis based on adaptive smooth ITD and MF-DFA method [PDF]

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
To effectively utilize a feature set to further improve fault diagnosis of a rolling bearing vibration signal, a method based on multi-fractal detrended fluctuation analysis (MF-DFA) and smooth intrinsic time-scale decomposition (SITD) was proposed.
Zhe Yuan   +4 more
doaj   +2 more sources

Modified MF-DFA Model Based on LSSVM Fitting

open access: yesFractal and Fractional
This paper proposes a multifractal least squares support vector machine detrended fluctuation analysis (MF-LSSVM-DFA) model. The system is an extension of the traditional MF-DFA model.
Minzhen Wang   +5 more
doaj   +2 more sources

The effect analysis of shape design of different charging piles based on Human physiological characteristics using the MF-DFA [PDF]

open access: yesScientific Reports
With the rapid development of new energy vehicles, the users have an increasing demand for charging piles. It is generally believed that the charging pile is a kind of practical product, and it only needs to realize the charging function.
Yusheng Zhang   +4 more
doaj   +2 more sources

Mental Fatigue Detection of Crane Operators Based on Electroencephalogram Signals Acquired by a Novel Rotary Switch-Type Semi-Dry Electrode Using Multifractal Detrend Fluctuation Analysis [PDF]

open access: yesSensors
The mental fatigue of crane operators can pose a serious threat to construction safety. To enhance the safety of crane operations on construction sites, this study proposes a rotary switch semi-dry electrode for detecting the mental fatigue of crane ...
Fuwang Wang, Daping Chen, Xiaolei Zhang
doaj   +2 more sources

Hotel Comment Emotion Classification Based on the MF-DFA and Partial Differential Equation Classifier

open access: yesFractal and Fractional, 2023
Due to the significant value that hotel reviews hold for both consumers and businesses, the development of an accurate sentiment classification method is crucial.
Sangjie Duanzhu, Jian Wang, Cairang Jia
doaj   +2 more sources

Are rare earth stocks efficient? Novel insights using asymmetric MF-DFA

open access: yesFinancial Innovation
This study investigates the weak-form efficiency and asymmetric multifractal scaling behavior of rare earth stock indices in the global, U.S. and Chinese markets during the trade war and the COVID-19 period. We examine the scaling behavior across overall,
Pengbo Wan   +4 more
doaj   +2 more sources

Identification of Active Gully Erosion Sites in the Loess Plateau of China Using MF-DFA [PDF]

open access: yesRemote Sensing, 2020
Gullies of different scales and types have developed in the Loess Plateau, China. Differences in the amount of gully erosion influence the development, evolution, morphology, and spatial distribution of these gullies. The strengths of headward erosion on
Jianjun Cao   +6 more
doaj   +2 more sources

Multifractal analysis of maize and soybean DNA [PDF]

open access: yesScientific Reports
This paper investigates the complexity of DNA sequences in maize and soybean using the multifractal detrended fluctuation analysis (MF-DFA) method, chaos game representation (CGR), and the complexity-entropy plane approach.
J. P. Correia
doaj   +2 more sources

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