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761
A spatial bearing fault classification method based on improved APSMOTE-WKMFA
Published 2025-01-01“…Aiming at the problem of poor classification performance of a model for a few classes of fault samples in the case of category imbalance, the spatial bearing fault classification method based on an improved affinity propagation synthetic minority oversampling technique-wavelet kernel marginal Fisher analysis (APSMOTE-WKMFA) was proposed.MethodsFirstly, the geodesic distance was used as the similarity metric for the affinity propagation algorithm, and the synthetic minority oversampling technique (SMOTE) was used to generate samples in the filtered subclusters up to the class balance. …”
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762
Hybrid Method for Oil Price Prediction Based on Feature Selection and XGBOOST-LSTM
Published 2025-04-01“…This study introduces a novel hybrid model framework, distinct from the conventional methods, that integrates influencing factors for oil price prediction. …”
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763
In-Situ Residual Tracking in Reduced Order Modelling
Published 2002-01-01“…Proper orthogonal decomposition (POD) based reduced-order modelling is demonstrated to be a weighted residual technique similar to Galerkin's method. …”
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764
Short-Term Load Forecasting of Power System Based on VMD-CNN-BIGRU
Published 2022-10-01“…The effectiveness of the proposed method is verified by simulation analysis, and the method has higher load prediction accuracy and stronger robustness than other models, which can improve the accuracy of short-term load prediction of power system.…”
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765
Submarine Cable Vibration Signal Recognition Based on Sparrow Search Algorithm Optimized Support Vector Machine
Published 2023-10-01“…Firstly, the submarine cable fault signal was decomposed by the ensemble empirical module decomposition (EEMD) method, allowing for extraction of the kurtosis and energy entropy combination of each component as the training feature set, so as to avoid any potential signal distortion caused by direct noise reduction that may affect the extraction of target features. …”
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766
A method based on clustering fast search for bearing performance degradation assessment
Published 2025-05-01“…The results show that CFS outperforms other clustering methods and models, including root mean square, kurtosis, Shannon entropy, approximate entropy, and permutation entropy, detecting early-stage degradation more precisely.…”
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767
An effective method for the abnormal monitoring of stage performance based on visual sensor network
Published 2018-04-01“…As the traditional monitoring method based on sparse description model to realize abnormal behavior of stage performance did not realize the manifold structure during the performance, the behavior characteristics are sparse, and the decomposition has higher volatility, the recognition accuracy of abnormal behavior is low. …”
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768
Simulating Ising-Like Models on Quantum Computer
Published 2023-10-01“…Using special parameterizations of the state of the system of qubits and transfer matrix decomposition, free energy and magnetization are calculated for 3-chain model on a quantum computer emulator. …”
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769
Application of the magnetotelluric method in geothermal exploration in Jianshi county, Hubei province, China
Published 2025-06-01“…Based on an MT profile in Maotian Township, Jianshi County, this paper processed data from 51 broadband MT measurement points using Fourier transform, Robust estimation, and impedance tensor decomposition techniques. After a detailed analysis of the dimensional characteristics and electrical axes, a 2D electrical structure model from the surface to a depth of 9 km was obtained via topography-based 2D inversion. …”
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770
Improving Electrical Distance Accuracy for Cable Fault Location Based on the Prony Method
Published 2025-01-01“…By establishing a frequency-variable coupling model containing the transfer function of the cable with double joint structure, studying the mapping relationship between the cable attenuation constant and the electromagnetic wave velocity, and adopting the Prony estimation method combined with the singular value decomposition noise reduction algorithm to achieve the extraction of the attenuation constant and the decoupling of the segmented wave velocity, thus improving the electrical accuracy of fault location. …”
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771
FUNCTIONAL MODELING OF CARBON SORBENTS SYNTHESIS CONTROL
Published 2019-02-01“…The control processes (analysis of raw material properties and matrix selection), technological processes (raw material preparation) and mixed processes are distinguished as a result of decomposition. The model includes a consistent description of the technological parameters selection (temperature, gas flow and time) for both stages of the synthesis process. …”
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772
An improved MP-NMO correction method based on multiparameter fitting and its application
Published 2025-05-01“…Additionally, the multiscale scanning of the complex Morlet wavelet was introduced to enhance noise resistance and adaptability to frequency bands. ResultsTheoretical model-based experiments demonstrate that the improved MP-NMO correction method effectively mitigated wavelet stretching under large offsets, yielding amplitude and frequency errors of less than 5%, which decreased by more than 90% compared to those of the conventional MP-NMO correction method (up to 40%). …”
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773
Unmanned combat concept based on DoDAF research on systematic description method
Published 2025-06-01“…The decomposition modeling method based on typical elements provide reference for the development and deduction verification of combat concepts, mining of combat capability requirements, and design of combat systems.…”
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774
Improved and Optimized GNSS-IR Sea Surface Height Retrieval Based on Noise Elimination and Lightweight Airborne Multi-GNSS Multi-UAV Fusion
Published 2025-01-01“…The inversion accuracy of the improved model is better, which confirms the effectiveness of the improved GNSS-IR model based on intelligent extraction, decomposition and reconstruction of δSNR data. …”
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775
Analysis of Flow-induced Vibration Characteristics of Fuel Rods Using POD and DMD Methods
Published 2024-10-01“…Leveraging the snapshot matrix derived from the extensive database, a high-fidelity reduced-order model (ROM) was developed. Two data-driven methodologies, namely proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD) methods, were employed to construct the ROM. …”
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776
CEEMDAN-MRAL Transformer Vibration Signal Fault Diagnosis Method Based on FBG
Published 2025-05-01“…The average accuracy of fault diagnosis of the transformer winding core reaches 97.9375%, and the time taken on the large-scale complex training set is only 1705 s, which has higher diagnostic accuracy and shorter training time than other models.…”
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777
Study on Distributed Ultrasonic Detection Method of Two-dimensional Gas Temperature Field
Published 2025-05-01“…In addressing issues associated with inverse problems, such as the limitations of least squares and algebraic iterative methods, where the number of discrete points cannot exceed the number of propagation paths and the temperature resolution is low, a two-dimensional temperature field reconstruction algorithm based on logarithmic-quadratic (LQ) functions and singular value decomposition (SVD) was developed for autoclave conditions. …”
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778
Detection Method of Apple Alternaria Leaf Spot Based on Deep-Semi-NMF
Published 2024-11-01“…A comparative analysis was conducted with several other detection methods, including GRX (Reed-Xiaoli detector), LRX (Local Reed-Xiaoli detector), CRD (Collaborative-Representation-Based Detector), LSMAD (LRaSMD-Based Mahalanobis Distance Detector), and the deep learning model Unet. …”
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779
Multisource Heterogeneous Data Fusion Methods Driven by Digital Twin on Basis of Prophet Algorithm
Published 2025-01-01“…However, the current data fusion methods still have problems, such as low accuracy of fused data, insufficient data integrity, poor data fusion efficiency, and poor scalability of fusion methods. …”
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780
Numerical Methods for Fractional-Order Fornberg-Whitham Equations in the Sense of Atangana-Baleanu Derivative
Published 2021-01-01“…The results demonstrated that the future method is easy to implement, highly methodical, and very effective in analyzing the behavior of complicated fractional-order linear and nonlinear differential equations existing in the related areas of applied science.…”
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