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Determining The Number of Principal Components with Schur's Theorem in Principal Component Analysis

Determining The Number of Principal Components with Schur's Theorem in Principal Component Analysis

Principal Component Analysis is a method for reducing the dimensionality of datasets while also limiting information loss. It accomplishes this by producing uncorrelated variables that maximize variance one after the other. The accepted criterion for evaluating a Principal Component’s (PC) performance is λ_j/tr(S) where tr(S) denotes the trace of the …