New precise model of studentized principal components
New precise model of studentized principal components
复制标题
新的学生化主成分精确模型
DOI:
10.1080/03610926.2022.2084110
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Kobayashi Yasuyuki
中科院分区:
文献类型:
--
作者:
Lourenco Bruno F.;Muramatsu Masakazu;Tsuchiya Takashi;Kobayashi Yasuyuki
If the sample Mahalanobis distance (SMD) is atypically large, it is essential to statistically estimate or test the contribution of each studentized principal component (SPC) decomposed from the SMD to consider its cause. However, there are no appropriate probability models for the SPCs of small samples. This study proposes a precise probability model for the SPCs of small samples without estimating the population eigenvalues or eigenvectors. The proposed model for an SPC comprises an elementary formula of sample size and the SPC’s index multiplied by one random variable following the t-distribution, which is simpler and requires no further computing compared with previous models. Numerical experiments demonstrated that the proposed model performs well under the weak condition that population eigenvalues are closely distinct with various dimensions and sample size. For practical implementation, the proposed model was applied for correcting the SMD to the population Mahalanobis distance, demonstrating better performance than other models. Additionally, the proposed model enables precise statistical testing of SPCs for discriminant analysis, cluster analysis, and projection pursuit, and the model improves the expectation–maximization algorithm for Gaussian mixture models.
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影响因子:
0.8
作者:
A. Takemura
通讯作者:
A. Takemura
DOI:
10.1007/s41060-019-00201-4
发表时间:
2019
期刊:
International Journal of Data Science and Analysis
影响因子:
--
作者:
Yasuyuki Kobayashi
通讯作者:
Yasuyuki Kobayashi
DOI:
10.1002/1520-684x(200008)31:9
发表时间:
2000
期刊:
Systems and Computers in Japan
影响因子:
--
作者:
M. Sakai;M. Yoneda;H. Hase;H. Maruyama;M. Naoe
通讯作者:
M. Naoe
DOI:
10.1587/transinf.2015edp7348
发表时间:
2016
期刊:
IEICE Trans. Inf. Syst.
影响因子:
--
作者:
Yasuyuki Kobayashi
通讯作者:
Yasuyuki Kobayashi