Search Results - PCA method algorithm

Principal manifolds for data visualization and dimension reduction by Gorban, Alexander N., Kégl, Balázs, Wunsch, Donald C., Zinovyev, Andrei

“…The book starts with the quote of the classical Pearson definition of PCA and includes reviews of various methods…”
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Source Analysis of Ambient PM2.5 in Wuhan City Based on Random Forest Model by Zhang, Zhi-Hao, Chen, Nan, Zhu, Bo, Tao, Hui-Ting, Cheng, Hai-Rong

“…) method and random forest(RF) algorithm model. The results indicated that ρ(PM2.5) was the highest in winter[(61.33±35.32) μg·m-3…”
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Source Analysis of Ambient PM 2.5 in Wuhan City Based on Random Forest Model by Zhang, Zhi-Hao, Chen, Nan, Zhu, Bo, Tao, Hui-Ting, Cheng, Hai-Rong

“…) method and random forest(RF) algorithm model. The results indicated that (PM ) was the highest in winter[(61.33±35.32) μg·m…”
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Identification of green tea brand based on hyperspectra imaging technology by Zhang, Hai-Liang, Liu, Xiao-Li, Zhu, Feng-Le, He, Yong

“…Hyperspectral imaging technology was developed to identify different brand famous green tea based on PCA information and image information fusion…”
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Research of coal mine water burst forecasting method based on PCA-ELM by LI Pei, CHEN Ying, MA Xiao-ping, YU De-xiang

“… a coal mine water burst forecasting method based on PCA-ELM , and established coal mine water burst forecasting model with the method…”
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基于支持向量机与特征降维的直流断路器机械故障诊断技术研究 by 夏加富, 叶奕君, 郭嘉俊, 谭佳明, 杨爱军, 王小华, 荣命哲

“…直流断路器机械故障诊断算法是直流断路器机械状态在线监测系统的核心部分.文中进行了直流断路器机械故障模拟实验,采集不同故障下的线圈电流及振动信号,对其进行特征提取…”
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Study of discrimination of corn seed based on near-infrared spectra and artificial neural network model by Chen, Jian, Chen, Xiao, Li, Wei, Wang, Jia-hua, Han, Dong-hai

“…A new non-destructive and rapid method was developed to discriminate varieties of corn seeds…”
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Application of PCA plus OPLS method in rapid reserve production rate prediction of shale gas wells by LIU Honglin,ZHOU Shangwen,LI Xiaobo

“… The results show that the average accuracy of reserve recovery ratio prediction using PCA-OPLS method surpasses the anticipated…”
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3-D modeling of origin discrimination of fragrant mushrooms using visible/near infrared spectra by Yang, Hai-qing, He, Yong, Chen, Yong-ming, Lin, Ping, Wu, Di

“… First, the spectral data ranging from 375 to 1025 nm were analyzed by principal component analysis (PCA…”
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Analysis of Chinese medicine tablets on coating quality based on support vector machine by Zai, Baochan, Shi, Xinyuan, Qiao, Yanjiang

“…) method was used to select the training sets and internal principal component analysis (internal PCA) was to select the optimal wavelength…”
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Fault Diagnosis Method of Wind Turbine Pitch Angle Based on PCA-KNN Fusion Algorithm by Xi CHEN, Luping LI, Rui LIU, Bo YANG, Zihao DENG, Zhonggui LI

“… turbine is proposed, depending on nonparametric kernel density estimation and Relief-F based feature extraction for data processing and the PCA-KNN fusion algorithm for fault diagnosis…”
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Using neural networks based template matching method to obtain redshifts of normal galaxies by Xu, Xin, Luo, A-li, Wu, Fu-chao, Zhao, Yong-heng

“…Galaxies can be divided into two classes: normal galaxy (NG) and active galaxy (AG). In order to determine NG redshifts, an automatic effective method is proposed in this paper, which consists of the following three main steps…”
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Spectral similarity measure and retrieval based on the complete spectral reflectance and absorption feature--nonlinear spectral angle mapper by Tang, Hong, Fang, Tao, Shi, Peng-fei

“… In this method, on one hand, nonlinear transformation and removing high relativity among bands are used through kernel PCA…”
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An improved low spectral distortion PCA fusion method by Peng, Shi, Zhang, Ai-Wu, Li, Han-Lun, Hu, Shao-Xing, Meng, Xian-Gang, Sun, Wei-Dong

“…Aiming at the spectral distortion produced in PCA fusion process, the present paper proposes an improved low spectral distortion PCA fusion method…”
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Influence of different coal particle sizes on near-infrared spectral quantitative analytical models by Lei, Meng, Li, Ming, Wu, Nan, Li, Ying-Na, Cheng, Yu-Hu

“…, 0.2, 1, 3 and 13 mm, were studied in this paper. The feature information of spectra was extracted by PCA method, then two quantitative analytical models were established based on GA-BP and GA-Elman neural network algorithms…”
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基于粒子群优化的支持向量机人脸识别 by 廖周宇;王钰婷;谢晓兰;刘建明

“…针对传统主成分分析（PCA）算法提取人脸特征时效率低下的问题,对其求解样本协方差矩阵的特征值和特征向量的过程进行改进,提出一种基于快速PCA降维算法的人脸识别方法。使用交叉验证方法,将支持向量机（SVM）模型训练时的识别准确率作为粒子群的适应度值,利用粒子群优化算法对SVM惩罚参数和核函数参数进行全局寻优,得到参数…”
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Fast detection of sugar content in fruit vinegar using NIR spectroscopy by Wang, Li, Li, Zeng-fang, He, Yong, Liu, Fei

“… Principal component analysis (PCA) is a method which has been widely used in the spectroscopic analysis, and LS-SVM is a new data mining algorithm developed from the machine learning community…”
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教師なし学習による高圧気液二相流の遷移領域を含む流動様式の分類 by 村山, 哲郎, 澤, 和弘, 天満, 則夫, 三輪, 修一郎, 高橋, 正浩, 柴田, 尚人

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Chemometrics for pattern recognition by Brereton, Richard G

“…Over the past decade, pattern recognition has been one of the fastest growth points in chemometrics. This has been catalysed by the increase in capabilities of…”
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An optimized identification method of coal-bearing stratum lithology by ZHANG Ning, ZHANG Youzhen, YAO Ke

“… underground, an optimized identification method of coal-bearing stratum lithology based on principal component analysis (PCA…”
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