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161
Improved spectral clustering algorithm and its application in MCI detection
Published 2015-04-01“…In order to detect mild cognitive impairment (MCI) using functional magnetic resonance imaging (fMRI),a method based on fMRI clustering was proposed fMRI data were clustered to obtain the blood oxygen level dependence( BOLD) change model of MCI patients,then abnormal patterns were used to detect disease.The traditional spectral clustering algorithm needs to calculate all of the eigenvalue and eigenvector,so time and space complexity is higher.An improved spectral clustering method was proposed which modified the similar matrix construction method and the setting method of σ and k,and then this method was applied to clustering and detection of MCI patients.To verify the performance of the proposed method,the comparison of the clustering result,classification accuracy using traditional algorithm and Nyström is also done.The comparative experimental results show that the proposed method can get BOLD pattern more accurately,the accuracy of MCI detection is higher than the other two algorithms,and the time and space complexity are less than the traditional algorithm.…”
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162
Improved spectral clustering algorithm and its application in MCI detection
Published 2015-04-01“…In order to detect mild cognitive impairment (MCI) using functional magnetic resonance imaging (fMRI),a method based on fMRI clustering was proposed fMRI data were clustered to obtain the blood oxygen level dependence( BOLD) change model of MCI patients,then abnormal patterns were used to detect disease.The traditional spectral clustering algorithm needs to calculate all of the eigenvalue and eigenvector,so time and space complexity is higher.An improved spectral clustering method was proposed which modified the similar matrix construction method and the setting method of σ and k,and then this method was applied to clustering and detection of MCI patients.To verify the performance of the proposed method,the comparison of the clustering result,classification accuracy using traditional algorithm and Nyström is also done.The comparative experimental results show that the proposed method can get BOLD pattern more accurately,the accuracy of MCI detection is higher than the other two algorithms,and the time and space complexity are less than the traditional algorithm.…”
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163
An Improved Coordinated Multi-point Multi-user Precoding Algorithm
Published 2018-02-01“…We established coordinated multi-point multi-user system model,gave the improved algorithm specific implementation steps,theoretically analyzed computational complexity of the algorithm, and used MATLAB to simulate system performance. …”
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164
Assignment Technology Based on Improved Great Wall Construction Algorithm
Published 2025-02-01“…This paper presents an autonomous multi-UAV cooperative task allocation method based on an improved Great Wall Construction Algorithm. A model integrating battlefield environmental factors, 3D terrain data, and threat assessments is developed for optimized task allocation and trajectory planning. …”
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165
Dynamic Path Optimization Based on Improved Ant Colony Algorithm
Published 2023-01-01“…Through the actual investigation and analysis, the influencing factors of the multiobjective planning model were determined. The ant colony algorithm was improved by using the analytic hierarchy process (AHP) to transform path length, travel time, and traffic flow into the comprehensive weight-influencing factor. …”
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166
Nighttime Vehicle Detection Algorithm Based on Improved YOLOv7
Published 2025-01-01“…Aiming at the problems of low visibility, fuzzy target features and high leakage rate of small targets in nighttime vehicle detection, this paper proposes a nighttime vehicle detection algorithm E-YOLOv7 based on the improved YOLOv7. Firstly, a hybrid feature enhancement module (SFE) is designed to enhance the expression of key features through the grouped-channel attention mechanism and feature reorganization to alleviate the loss of semantic information caused by fuzzy features of nighttime vehicles. …”
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167
Lightweight insulator target detection algorithm based on improved YOLOX
Published 2025-06-01“…First, Depthwise Separable Convolutions (DWConv) are employed to replace traditional convolutions, simplifying the model structure and reducing parameter count. Second, the Spatial Pyramid Pooling Fast-N (SPPF-N) module is introduced to substitute the traditional SPP module, and the last CSPLayer is removed, further compressing parameters while improving detection speed. …”
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168
Shuffled Puma Optimizer for Parameter Extraction and Sensitivity Analysis in Photovoltaic Models
Published 2025-07-01Subjects: Get full text
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169
Linearized MILP Model With Improved Soft Actor-Critic Algorithm for Dynamic and Efficient Active Distribution Network Planning
Published 2025-01-01“…Then, by analyzing the distributed network planning objective function and constraints, a mixed integer linear planning (MILP) model for distributed networks is proposed. And an improved Soft Actor-Critic (ISAC) algorithm is proposed to solve the model. …”
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170
A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
Published 2025-01-01“…At the same time, considering the problem of low utilization of spectrum in multiangle imaging SAR, an improved range migration algorithm is proposed, which can effectively increase the utilization of the spectrum for data processing. …”
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171
Multi-Objective Optimal Allocation of Regional Water Resources Based on the Improved NSGA-III Algorithm
Published 2025-05-01Subjects: “…improved NSGA-III algorithm…”
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172
Photovoltaic MPPT Control Method Based on Improved Firefly Algorithm
Published 2020-06-01Get full text
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173
A hybrid machine learning model with self-improved optimization algorithm for trust and privacy preservation in cloud environment
Published 2024-11-01“…The model combines k-anonymity for user privacy, an optimized Firefly algorithm for trust generation, and a Time-aware Modified Best Fit Decreasing (T-MBFD) algorithm to improve resource allocation efficiency. …”
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174
Pipeline corrosion rate prediction model using BP neural network based on improved sparrow search algorithm
Published 2024-07-01“…Methods This paper proposes a pipeline corrosion rate prediction model using an optimized BP neural network based on an improved Sparrow Search Algorithm to address the aforementioned disadvantages. …”
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175
Spiking Neural Networks Optimized by Improved Cuckoo Search Algorithm: A Model for Financial Time Series Forecasting
Published 2025-05-01“…To address the performance limitations of Spiking Neural Networks (SNNs) caused by hyperparameter sensitivity, this study proposes an SNN model optimized by an Improved Cuckoo Search (ICS) algorithm (termed ICS-SNN). …”
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176
Research on Lightweight Algorithm Model for Precise Recognition and Detection of Outdoor Strawberries Based on Improved YOLOv5n
Published 2025-01-01“…The algorithm uses FasterNet to replace the original YOLOv5n backbone network and improves the detection rate. …”
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Clean-Room Air Conditioning Control Based on Improved Min-Max Robust Model Predictive Control Algorithm
Published 2025-01-01“…Subsequently, an improved Min Max robust model predictive control algorithm was proposed to control the parameters of the model, and compared and analyzed with the original algorithm. …”
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180
Short-Term Power Load Prediction Based on Level Processing Method and Improved GWO Algorithm
Published 2025-01-01“…To address this issue, this study introduces level processing method and improved grey wolf genetic algorithm to predict short-term power load and optimize the power load prediction accuracy. …”
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