Journal
PATTERN RECOGNITION
Volume 112, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.patcog.2020.107768
Keywords
Central subspace; Ladle estimator; Online sliced inverse regression; Principal support vector machines; Streamed data
Funding
- National Reasearch Foundation of Korea (NRF) [2018R1D1A1B07043034, 2019R1A4A1028134]
- Korea University [K1806401]
- National Research Foundation of Korea [2019R1A4A1028134, 2018R1D1A1B07043034] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The proposed real-time approach for sufficient dimension reduction, namely principal least squares support vector machines, provides better estimation of the central subspace compared to existing methods such as sliced inverse regression and principal support vector machines. This new proposal is also capable of quick real-time updates in the presence of streamed data, outperforming existing algorithms in terms of performance and speed.
We propose a real-time approach for sufficient dimension reduction. Compared with popular sufficient dimension reduction methods including sliced inverse regression and principal support vector machines, the proposed principal least squares support vector machines approach enjoys better estimation of the central subspace. Furthermore, this new proposal can be used in the presence of streamed data for quick real-time updates. It is demonstrated through simulations and real data applications that our proposal performs better and faster than existing algorithms in the literature. (c) 2020 Elsevier Ltd. All rights reserved.
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