Showing 1,181 - 1,200 results of 1,626 for search 'frequency machine methods', query time: 0.15s Refine Results
  1. 1181

    MFF: A Deep Learning Model for Multi-Modal Image Fusion Based on Multiple Filters by Yuequn Wang, Zhengwei Li, Jianli Wang, Leqiang Yang, Bo Dong, Hanfu Zhang, Jie Liu

    Published 2025-01-01
    “…The method involving low-frequency feature correlation and high-frequency feature non-correlation was used for image training and fusion purposes. …”
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    Article
  2. 1182

    Indoor Positioning Systems in Logistics: A Review by Laura Vaccari, Antonio Maria Coruzzolo, Francesco Lolli, Miguel Afonso Sellitto

    Published 2024-12-01
    “…Geometric methods, particularly multilateration, proved to be the most effective for positioning and are supported by advanced filtering techniques like the Extended Kalman Filter and machine learning models such as Convolutional Neural Networks. …”
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    Article
  3. 1183

    Multi-dimensional feature extraction of EEG signal and its application in stroke classification by Teng Wang, Wenhui Jia, Fenglian Li, Xirui Liu, Xueying Zhang, Fengyun Hu

    Published 2025-06-01
    “…Abstract Feature extraction based on EEG signals and construction of classification models using machine learning methods are key to intelligent assisted diagnosis of brain diseases (such as stroke classification). …”
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    Article
  4. 1184

    Exploring Process Heterogeneity in Environmental Statistics: Examples and Methodological Advances by Gregor Laaha, Johannes Laimighofer, Nur Banu Özcelik, Svenja Fischer

    Published 2025-04-01
    “…The first problem addresses flood frequency analysis, where floods are generated by different processes in catchment and atmosphere. …”
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    Article
  5. 1185

    Lorenz-PSO Optimized Deep Neural Network for Enhanced Phonocardiogram Classification by Awais Mahmood, Mousa Alhajlah, Habib Dhahri, Abdulaziz Almaslukh

    Published 2025-01-01
    “…The results are also compared to a fusion of instantaneous frequency-based features with random forest & KNN classifiers and other state-of-the-art methods on accuracy, precision, recall, F1-score, and fitness value. …”
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  6. 1186

    To Compare Incisional Fluid Loss During Different Stages of Phacoemulsification and its effect on Anterior Chamber Stability in Micro Coaxial and Bimanual Phacoemulsification by Dharmik Sharma, Dipan Desai, Kaushik Solanki

    Published 2013-01-01
    “…All patients were operated on the same phaco machine by the same surgeon. Intra-operative parameters were constant for all patients in each group. …”
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  7. 1187

    Vibration Tendency Prediction Approach for Hydropower Generator Fused with Multiscale Dominant Ingredient Chaotic Analysis, Adaptive Mutation Grey Wolf Optimizer, and KELM by Wenlong Fu, Kai Wang, Jiawen Tan, Kaixuan Shao

    Published 2020-01-01
    “…For this purpose, a novel hybrid approach combined with multiscale dominant ingredient chaotic analysis, kernel extreme learning machine (KELM), and adaptive mutation grey wolf optimizer (AMGWO) is proposed. …”
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    Article
  8. 1188

    Estimation of snow load and avalanche hazard assessment in Southeastern Afghanistan through remote sensing techniques by Nazir Khan Mohammadi, Mohammad Gul Arabzai, Zikui Wang

    Published 2025-07-01
    “…Due to the limited availability of ground-based observations, remote sensing techniques have been widely utilized to analyze snow cover, avalanche frequency, and climatic trends. The Snow Avalanche Frequency Estimation (SAFE) model, which employs Landsat satellite data, to emphasize remote sensing’s role in assessing climatic has successfully mapped zones susceptible to avalanches over a span of 32 years. …”
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  9. 1189

    Interpretability Study on the Fault Diagnosis Model of the Heat pipe/ Vapor Compression Composite Air Conditioning System by ZHANG Yiqi, HUANG Shuoquan, LI Xiuming, DI Yanqiang, SONG Mengjie, HAN Zongwei

    Published 2025-01-01
    “…This study develops a composite fault diagnosis model based on typical machine learning algorithms, compares the diagnostic performance of different models, and finally conducts interpretability research on the diagnostic models using the SHAP method. …”
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  10. 1190
  11. 1191

    Robust Cross-Validation of Predictive Models Used in Credit Default Risk by Jose Vicente Alonso, Lorenzo Escot

    Published 2025-05-01
    “…Model validation is a challenging Machine Learning task, usually more difficult for consumer credit default models because of the availability of small datasets, the modeling of low-frequency events (imbalanced data), and the bias in the explanatory variables induced by the train/test sets split of the validation techniques (covariate shift). …”
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    Article
  12. 1192

    Cycle Time-Based Fault Detection and Localization in Pneumatic Drive Systems by Vladimir Boyko, Jürgen Weber

    Published 2024-11-01
    “…The applicability of the proposed method and its detection limits in an industrial environment are examined using pneumatic assembly machines.…”
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    Article
  13. 1193

    Graphs Constructed from Instantaneous Amplitude and Phase of Electroencephalogram Successfully Differentiate Motor Imagery Tasks by Maliheh Miri, Vahid Abootalebi, Hamid Saeedi-Sourck, Dimitri Van De Ville, Hamid Behjat

    Published 2025-03-01
    “…To determine the most discriminative subspace, an exploratory analysis was conducted in the spectral domain of the graphs by ranking the graph frequency components using a feature selection method. …”
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  14. 1194

    Application of Fractional Fourier Transform and BP Neural Network in Prediction of Tumor Benignity and Malignancy by Xuanyu Liu, Nan Gao, Shuoran He, Lizhen Wang

    Published 2025-04-01
    “…Experimental results show that the proposed model achieves an accuracy of 93.177% in classifying benign and malignant tumors, outperforming the support vector machine (SVM) method. The integration of FrFT improves feature distinguishability and reduces dependence on manual extraction. …”
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    Article
  15. 1195

    Recognition and classification techniques of marine mammal calls based on LSTM and expanded causal convolution by Wanlu Cheng, Wanlu Cheng, Hao Chen, Jiaming Jiang, Jiaming Jiang, Shuang Li, Shuang Li, Jingjing Wang, Jingjing Wang, Yanping Zhou

    Published 2025-05-01
    “…However, traditional machine learning methods struggle to capture complex acoustic patterns, while most existing deep learning approaches rely solely on frequency-domain features and require large datasets, which limits their performance on small-scale marine mammal datasets. …”
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    Article
  16. 1196

    Dynamic reconstruction of electroencephalogram data using RBF neural networks by Xuan Wang, Congcong Du, Xianjin Ke, Jian Zhang, Zheng Zheng, Yayan Yue, Ming Yu

    Published 2025-03-01
    “…IntroductionElectroencephalography (EEG) is widely used for analyzing brain activity; however, the nonlinear and nature of EEG signals presents significant challenges for traditional analysis methods. Machine has shown great promise in addressing these limitations. …”
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  17. 1197

    A synergistic approach for enhanced eye blink detection using wavelet analysis, autoencoding and Crow-Search optimized k-NN algorithm by M. Chandralekha, N. Priyadharshini Jayadurga, Thomas M. Chen, Mithileysh Sathiyanarayanan, Kasif Saleem, Mehmet A. Orgun

    Published 2025-04-01
    “…This optimization method actively samples the search space to balance exploration and exploitation to identify the optimal configuration for the model. …”
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    Article
  18. 1198

    3D convolutional neural network based on spatial-spectral feature pictures learning for decoding motor imagery EEG signal by Xiaoguang Li, Xiaoguang Li, Yaqi Chu, Xuejian Wu

    Published 2024-12-01
    “…Finally, through experiments, the proposed method is compared to various classic machine learning and deep learning techniques. …”
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    Article
  19. 1199

    User authentication of industrial internet based on HHT transform of mouse behavior by Yigong ZHANG, Qian YI, Jian LI, Congbo LI, Aijun YIN, Shuping YI

    Published 2022-06-01
    “…The rapid development of the industrial internet had caused widespread concern about the network security, and the end-user authentication technology was considered a research hotspot.According to the characteristics of human-computer interaction in industrial internet, an experimental website was designed.24 users' mouse behavior data in an uncontrolled environment were collected within 2.5 years to conduct case studies.Hilbert-Huang transform (HHT) was used to extract frequency domain features of mouse behavior signals, combined with time domain features to form a time-frequency joint domain feature matrix of 163-dimensional to characterize user mouse behavior patterns.Bagged tree, support vector machine (SVM), Boost tree and K-nearest neighbor (KNN) were used to build a user authentication model, and the comparison result showed that the Bagged tree had the best internal detection effect in this case, with an average false acceptance rate (FAR) of 0.12% and an average false rejection rate (FRR) of 0.28%.In external detection, the FAR was 1.47%.Compared with the traditional mouse dynamics method, the frequency domain information of mouse behavior extracted by HHT can better realize the user authentication, and provide technical support the security of the industrial internet.…”
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  20. 1200