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3861
Fault Diagnosis of Industrial Process Based on FDKICA-PCA
Published 2018-12-01“…Because the dynamic characteristics of autocorrelation and lag correlation in production process are neglected in fault diagnosis,Kernel Independent Component AnalysisPrincipal Component Analysis (KICAPCA) is very poor in detecting small and gradual faults because of lacking available variable contribution analysis.In this paper, a dynamic kernel independent component analysis (KICAPCA) fault diagnosis method based on wavelet packet filtering is proposed.This method integrates wavelet packet filtering theory and AR model prediction data characteristics into KICAPCA to extract the feature information of process variable autocorrelation and lagrelated .In this paper, KICAPCA algorithm is used to extract the independent components and principal components of process variables to determine the control limits of three monitoring indicators T2, SPE,I2.Nonlinear contribution graph is used for fault diagnosis, and the advantage of FDKICAPCA method is verified by simulation results of Tennessee process.…”
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3862
Real-Time Acoustic Measurement System for Cutting-Tool Analysis During Stainless Steel Machining
Published 2024-12-01“…Using the TreeBagger machine-learning algorithm, the system accurately predicts tool wear, detecting both gradual and abrupt wear patterns. …”
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3863
Determination of Spatiotemporal Gait Parameters Using a Smartphone’s IMU in the Pocket: Threshold-Based and Deep Learning Approaches
Published 2025-07-01“…This study proposes a hybrid approach combining threshold-based algorithm and deep learning to detect four major gait events—initial contact (IC), toe-off (TO), opposite initial contact (OIC), and opposite toe-off (OTO)—using only a smartphone’s built-in inertial sensor placed in the user’s pocket. …”
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3864
A parallel CNN architecture for sport activity recognition based on minimal movement data
Published 2024-12-01“…Every signal representation is utilized as an input for a Separated convolutional model, which constructs the motion features using the sports motion information. When the two sets of motion pointsets from each CNN are merged, the situation becomes more balanced, and the Random Forest classification model is able to identify the type of sports activity by detecting and classifying the features. …”
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3865
Machine Learning-Driven Prediction of Vitamin D Deficiency Severity with Hybrid Optimization
Published 2025-02-01“…The improved whale optimization (IWOA) algorithm was used for feature selection, which optimized weight functions to improve prediction accuracy. …”
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3866
Modeling and countermeasures of a social network-based botnet with strong destroy-resistance
Published 2017-01-01“…To defeat botnets and ensure cyberspace security,a novel social network-based botnet with strong destroy-resistance (DR-SNbot),as well as its corresponding countermeasure,was proposed.DR-SNbot constructed command and control servers (C&C-Servers) based on social network.Each C&C-Server corresponded to a unique pseudo-random nickname.The botmaster issues commanded by hiding them in diaries using information hiding techniques,and then a novel C&C channel was established.When different proportions of C&C-Servers were invalid,DR-SNbot would send out different levels of alarms to inform attackers to construct new C&C-Servers.Then,DR-SNbot could automatically repair C&C communication to ensure its strong destroy-resistance.Under the experimental settings,DR-SNbot could resume the C&C communication in a short period of time to keep 100% of the control rate even if all the current C&C-Servers were invalid.Finally,a botnet nickname detecting method was proposed based on the difference of lexical features of legal nicknames and pseudo-random nicknames.Experimental results show that the proposed method can effectively (precision:96.88%,recall:93%) detect pseudo-random nicknames generated by social network-based botnets with customized algorithms.…”
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3867
SmoothDectector: A Smoothed Dirichlet Multimodal Approach for Combating Fake News on Social Media
Published 2025-01-01“…Our results underscore the potential of integrating a probabilistic algorithm with a deep neural network to address the challenges of fake news detection in a multimodal setting. …”
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3868
Diagnosis of Sleep Apnea Hypopnea Syndrome Using Fusion of Micro-motion Signals from Millimeter-wave Radar and Pulse Wave Data
Published 2025-02-01“…This study used a radar and pulse wave data preprocessing algorithm to extract time-frequency information and artificial features from the signals, balancing the accuracy and robustness of sleep-breathing abnormality event detection Additionally, a deep neural network was designed to fuse the two types of signals for precise identification of sleep apnea and hypopnea events, and to estimate the Apnea-Hypopnea Index (AHI) for quantitative assessment of sleep-breathing abnormality severity. …”
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3869
Android malware family classification method based on the image of bytecodeConstruction of MDS matrices
Published 2016-06-01“…An Android malware family classification method based on the image of bytecode was proposed accord-ing to the exponential growth of Android malware.A bytecode file of Android malware was converted to a 256-level grayscale image and texture features was extracted from the image by GIST.The random forest algorithm was ap-plied to classify the extracted features.The method by the experimental data of 14 kinds of common Android mal-ware families was verified and was compared against the DREBIN on the same dataset.The experimental results show that the proposed method has high detection precision and low false positive rate.…”
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3870
Molten Pool Image Segmentation Based on Adaptive Multi-Scale Attention Mechanism
Published 2025-01-01“…Initially, an adaptive multi-scale channel attention mechanism is introduced and fused with a feature pyramid, forming a multi-scale attention pyramid structure that significantly enhances the network’s capability to extract intricate molten pool features. …”
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3871
UHVDC Transmission Line Fault Identification Method Based on Generalized Regression Neural Network
Published 2025-04-01“…A protection method for ultra-high voltage direct current transmission lines based on generalized regression neural network (GRNN) is proposed to address the issues of easy rejection and long fault detection time in ultra-high voltage direct current protection. …”
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3872
An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction
Published 2025-05-01“…Then, the received signal is subjected to the fractional Fourier transform (FrFT) and inverse transform to extract the target signal. Finally, jamming detection is conducted based on the multi-dimensional features of the pulse-compressed signal. …”
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3873
External phantom-based validation of a deep-learning network trained for upscaling of digital low count PET data
Published 2025-04-01“…The performance of this algorithm has so far only been clinically evaluated on patient data featuring limited scan statistics and unknown actual activity concentration. …”
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3874
A Portable Smartphone-Based 3D-Printed Biosensing Platform for Kidney Function Biomarker Quantification
Published 2025-03-01“…The system adapts to variations in smartphones, reagent brands, and lighting conditions through an adaptive calibration algorithm, ensuring flexibility and accuracy. The sensor demonstrated good linear detection ranges for uric acid (1–30 mg/dL), creatinine (0.1–20 mg/dL), and albumin (0.1–8 g/dL), with detection limits of 1.15 mg/dL, 0.15 mg/dL, and 0.11 g/dL, respectively. …”
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3875
Curvature estimation for point cloud 2-manifolds based on the heat kernel
Published 2024-11-01“…As an exemplary application, we utilized the mean curvature for detecting features of point clouds.…”
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3876
Analysis of Acoustic Signals of Footsteps from the Piezoelectric Sensor
Published 2023-12-01“…The original signal was pre-processed using filtering systems and analyzed by the fast Fourier transform and power spectral density methods to extract descriptive spectral features of the signal. This preliminary study proposed a method as a sensor based piezoelectric security system to detect the acoustic signals that can indicate possible dangers to the safety of people or property. …”
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3877
Potential distribution of native freshwater fish in Tabasco, Mexico
Published 2017-05-01“…We used occurrence records of 41 native fish species and 22 interpolated surfaces that represent topographic features and annual, seasonal and extreme trends of temperature and precipitation to generate niche-based potential geographic distribution maps using the GARP and MaxEnt algorithms. …”
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3878
A segmentation method for lung nodule image sequences based on superpixels and density-based spatial clustering of applications with noise.
Published 2017-01-01“…Moreover, by fitting the distance and detecting the change in slope, an accurate clustering threshold is obtained. …”
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3879
Development of a deep learning method to identify acute ischaemic stroke lesions on brain CT
“…We aimed to develop a deep learning (DL) method using CT brain scans that were labelled but not annotated for the presence of ischaemic lesions.Methods We designed a convolutional neural network-based DL algorithm to detect ischaemic lesions on CT. Our algorithm was trained using routinely acquired CT brain scans collected for a large multicentre international trial. …”
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3880
Artificial intelligence analysis in cyber domain: A review
Published 2022-04-01“…An in-depth learning algorithm is utilized for training a neural network for detecting suspicious user activities. …”
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