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- W2018580944 abstract "This paper considers the problem of estimating the population spectral distribution from a sample covariance matrix in large dimensional situations. We generalize the contour-integral based method in Mestre (2008) and present a local moment estimation procedure. Compared with the original one, the new proce- dure can be applied successfully to models where the asymptotic clusters of sample eigenvalues generated by dierent population eigenvalues are not all separate. The proposed estimates are proved to be consistent. Numerical results illustrate the im- plementation of the estimation procedure and demonstrate its eciency in various cases." @default.
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- W2018580944 date "2014-01-01" @default.
- W2018580944 modified "2023-09-24" @default.
- W2018580944 title "A local moment estimator of the spectrum of a large dimensional covariance matrix" @default.
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- W2018580944 doi "https://doi.org/10.5705/ss.2012.130" @default.
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