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- W2952804817 abstract "The problem of infering the top component of a noisy sample covariance matrix with prior information about the distribution of its entries is considered, in the framework of the spiked covariance model. Using the replica method of statistical physics the computation of the overlap between the top components of the sample and population covariance matrices is formulated as an explicit optimization problem for any kind of entry-wise prior information. The approach is illustrated on the case of top components including large entries, and the corresponding phase diagram is shown. The calculation predicts that the maximal sampling noise level at which the recovery of the top population component remains possible is higher than its counterpart in the spiked covariance model with no prior information." @default.
- W2952804817 created "2019-06-27" @default.
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- W2952804817 date "2016-11-06" @default.
- W2952804817 modified "2023-09-25" @default.
- W2952804817 title "Inference of principal components of noisy correlation matrices with prior information" @default.
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- W2952804817 hasPublicationYear "2016" @default.
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