This paper proposes a novel shrinkage estimator for high-dimensional covariance matrices by extending the Oracle Approximating Shrinkage (OAS) of Chen et al. (2009) to target the diagonal elements of ...
The central belt of the Franciscan subduction complex of California is largely a zone of pelitic-matrix melange bearing exotic blocks of blueschist and eclogite. In outcrop, the matrix appears to be a ...
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