Directionally Paired Principal Component Analysis for Bivariate Estimation Problems.
Directionally Paired Principal Component Analysis for Bivariate Estimation Problems.
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DOI:
10.1109/icpr48806.2021.9412245
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发表时间:
2021-01
期刊:
影响因子:
--
通讯作者:
Yezzi A
中科院分区:
文献类型:
--
作者:
Fan Y;Dahiya N;Bignardi S;Sandhu R;Yezzi A
We propose Directionally Paired Principal Component Analysis (DP-PCA), a novel linear dimension-reduction model for estimating coupled yet partially observable variable sets. Unlike partial least squares methods (e.g., partial least squares regression and canonical correlation analysis) that maximize correlation/covariance between the two datasets, our DP-PCA directly minimizes, either conditionally or unconditionally, the reconstruction and prediction errors for the observable and unobservable part, respectively. We demonstrate the optimality of the proposed DP-PCA approach, we compare and evaluate relevant linear cross-decomposition methods with data reconstruction and prediction experiments on synthetic Gaussian data, multi-target regression datasets, and a single-channel image dataset. Results show that when only a single pair of bases is allowed, the conditional DP-PCA achieves the lowest reconstruction error on the observable part and the total variable sets as a whole; meanwhile, the unconditional DP-PCA reaches the lowest prediction errors on the unobservable part. When an extra budget is allowed for the observable part’s PCA basis, one can reach an optimal solution using a combined method: standard PCA for the observable part and unconditional DP-PCA for the unobservable part.
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DOI:
10.1002/joc.3370140404
发表时间:
1994-05-01
期刊:
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子:
--
作者:
COOK, ER;BRIFFA, KR;JONES, PD
通讯作者:
JONES, PD
影响因子:
2.7
作者:
Hotelling, H
通讯作者:
Hotelling, H
影响因子:
1.6
作者:
Pearson, Karl
通讯作者:
Pearson, Karl
影响因子:
3.7
作者:
KRAMER, MA
通讯作者:
KRAMER, MA
影响因子:
7.5
作者:
Spyromitros-Xioufis, Eleftherios;Tsoumakas, Grigorios;Vlahavas, Ioannis
通讯作者:
Vlahavas, Ioannis