Abstract
Our objective is to asses the performance of covariance matrix regularization methods on real world data, to provide points of reference for future applications. We analyse the following estimators: OAS, Rao-Blackwell-Ledoit-Wolf, Ledoit-Wolf in two versions, and Thresholding on data from several publicly available datasets (K9, Isolet, Slice, Gistette, S1 ADL1). We investigate through several norms the error of estimation from reduced data.
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Głomb, P., Cholewa, M. (2015). Experimental Evaluation of Selected Approaches to Covariance Matrix Regularization. In: Rutkowski, L., Korytkowski, M., Scherer, R., Tadeusiewicz, R., Zadeh, L., Zurada, J. (eds) Artificial Intelligence and Soft Computing. ICAISC 2015. Lecture Notes in Computer Science(), vol 9120. Springer, Cham. https://doi.org/10.1007/978-3-319-19369-4_35
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DOI: https://doi.org/10.1007/978-3-319-19369-4_35
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-19368-7
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