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检索条件"主题词=K-means clustering algorithm"
398 条 记 录,以下是211-220 订阅
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EFFICIENT COMPUTATION OF OPTION PRICES AND GREEkS BY QUASI-MONTE CARLO METHOD WITH SMOOTHING AND DIMENSION REDUCTION
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SIAM JOURNAL ON SCIENTIFIC COMPUTING 2017年 第2期39卷 B298-B322页
作者: Weng, Chengfeng Wang, Xiaoqun He, Zhijian Tsinghua Univ Dept Math Sci Beijing 100084 Peoples R China Sun Yat Sen Univ Lingnan Univ Coll Guangzhou 510275 Guangdong Peoples R China
Discontinuities and high dimensionality are common in the problems of pricing and hedging of derivative securities. Both factors have a tremendous impact on the accuracy of the quasi-Monte Carlo (QMC) method. An ideal... 详细信息
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Temporal forecasting by converting stochastic behaviour into a stable pattern in electric grid
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INTERNATIONAL JOURNAL OF SYSTEM ASSURANCE ENGINEERING AND MANAGEMENT 2024年 第9期15卷 4426-4442页
作者: Qashou, Akram Yousef, Sufian Hazzaa, Firas Aziz, kahtan Anglia Ruskin Univ Cambridge England
The malfunction variables of power stations are related to the areas of weather, physical structure, control, and load behavior. To predict temporal power failure is difficult due to their unpredictable characteristic... 详细信息
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An Adaptive Remaining Life Prediction for Rolling Element Bearings
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JOURNAL OF FAILURE ANALYSIS AND PREVENTION 2015年 第1期15卷 82-89页
作者: Zhang, Shuai Zhang, Yongxiang Zhu, Jieping Naval Univ Engn Power Engn Marine Engn Wuhan 430033 Hubei Peoples R China
In order to select the effective health index and build reasonably the prediction model for prognostics, a new approach is proposed. The generative topographic mapping-based negative likelihood probability is used as ... 详细信息
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A method for recognising wrong actions of martial arts athletes based on keyframe extraction
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INTERNATIONAL JOURNAL OF BIOMETRICS 2024年 第3-4期16卷 256-271页
作者: Li, Zhiqiang Jilin Police Coll Dept Police Sports Teaching & Res Changchun 130000 Peoples R China
In order to improve the accuracy of incorrect action recognition and shorten the time required for action recognition, the paper proposes a method for recognising incorrect actions of martial arts athletes based on ke... 详细信息
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Characterization of multiple sclerosis lesions with distinct clinical correlates through quantitative diffusion MRI
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NEUROIMAGE-CLINICAL 2020年 28卷 102411-102411页
作者: Martinez-Heras, Eloy Solana, Elisabeth Prados, Ferran Andorra, Magi Solanes, Aleix Lopez-Soley, Elisabet Montejo, Carmen Pulido-Valdeolivas, Irene Alba-Arbalat, Salut Sola-Valls, Nuria Sepulveda, Maria Blanco, Yolanda Saiz, Albert Radua, Joaquim Llufriu, Sara Hosp Clin Barcelona Inst Invest Biomed August Pi & Sunyer IDIBAPS Ctr Neuroimmunol Lab Adv Imaging Neuroimmunol Dis Barcelona Spain Univ Barcelona Barcelona Spain Univ Oberta Catalunya E Hlth Ctr Barcelona Spain UCL Dept Med Phys & Bioengn Ctr Med Image Comp London England UCL Dept Neuroinflammat UCL Inst Neurol NMR Res UnitQueen Sq MS Ctr London England IDIBAPS Imaging Mood & Anxiety Related Disorders IMARD Gr Barcelona Spain CIBERSAM Barcelona Spain Karolinska Inst Dept Clin Neurosci Ctr Psychiat Res Stockholm Sweden Kings Coll London Inst Psychiat Psychol & Neurosci Dept Psychosis Studies Early Psychosis Intervent & Clin Detect EPIC Lab London England
Diffusion magnetic resonance imaging can reveal quantitative information about the tissue changes in multiple sclerosis. The recently developed multi-compartment spherical mean technique can map different microscopic ... 详细信息
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Evaluation of taxi carpooling feasibility in different urban areas through the k-means mattereelement analysis method
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TECHNOLOGY IN SOCIETY 2018年 53卷 135-143页
作者: Xiao, Qiang He, Ruichun Yu, Jianning Lanzhou Jiao Tong Univ Sch Traff & Transportat Lanzhou Gansu Peoples R China
A k-means mattereelement model for the evaluation of taxi carpooling feasibility was proposed. The model was established on the basis of the influential factors and characteristics of urban taxi carpooling and data of... 详细信息
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Automatically Extracting Bridge Frequencies Using SSA and k-means clustering from Vehicle-Scanned Accelerations
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INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS 2022年 第8期22卷 2250079-2250079页
作者: Yang, Y. B. He, Yi Xu, Hao Chongqing Univ Res Ctr Engn Vibrat & Disaster Prevent Chongqing 400045 Peoples R China Chongqing Univ Sch Civil Engn Chongqing 400045 Peoples R China Chongqing Univ Sci & Technol Sch Civil Engn & Architecture Chongqing Peoples R China
This paper removes the subjective judgment by proposing a technique for automatically identifying the bridge frequencies using singularity spectrum analysis and k-means clustering. First, the vehicle-bridge contact-po... 详细信息
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SF6 Pointer Pressure Meter Reading Method Based on Fusion Attention Feature UNet
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IEEE ACCESS 2023年 11卷 107451-107462页
作者: Wu, Hao Qi, Ziyuan Tian, Haipeng Ni, Zhihao Chen, Weizhe Sichuan Univ Sci & Engn Automat & Informat Engn Zigong 643000 Sichuan Peoples R China Artificial Intelligence Key Lab Sichuan Prov Zigong 643000 Sichuan Peoples R China
Aiming at the problem of decreasing the accuracy of meter reading caused by manual reading, an SF6 pointer-type pressure meter reading method based on the fusion attention feature UNet is proposed to improve the accur... 详细信息
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Swarm Intelligence-Based Improved Adaptive Chirp Mode Decomposition algorithm for Suppression of Ocular Artifacts from EEG Signal
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IEEE SENSORS JOURNAL 2024年 第6期24卷 8314-8325页
作者: Silpa, Bommala Hota, Malaya kumar Vellore Inst Technol Sch Elect Engn Dept Commun Engn Vellore 632014 Tamil Nadu India
Electroencephalogram (EEG) signals are mostly contaminated with ocular artifacts (OAs) due to eye movements and eye blinks. These artifacts make the EEG recordings difficult to analyze and diagnose neurological diseas... 详细信息
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The pH paradox
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SCIENCE OF THE TOTAL ENVIRONMENT 2024年 946卷 174099页
作者: More, kagiso Samuel Wolkersdorfer, Christian Tshwane Univ Technol SARChI Chair Mine Water Management Dept Environm Water & Earth Sci Private Bag X680 ZA-0001 Pretoria South Africa Univ South Africa Inst Nanotechnol & Water Sustainabil iNanoWS Coll Sci Engn & Technol Private Bag X6 ZA-1709 Johannesburg South Africa
This paper highlights the critical role of pH or proton activity measurements in environmental studies and emphasises the importance of applying proper statistical approaches when handling pH data. This allows for mor... 详细信息
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