Web: http://arxiv.org/abs/2201.08756

Jan. 24, 2022, 2:10 a.m. | Per Mattsson, Dave Zachariah, Petre Stoica

stat.ML updates on arXiv.org arxiv.org

We consider the problem of finding tuned regularized parameter estimators for
linear models. We start by showing that three known optimal linear estimators
belong to a wider class of estimators that can be formulated as a solution to a
weighted and constrained minimization problem. The optimal weights, however,
are typically unknown in many applications. This begs the question, how should
we choose the weights using only the data? We propose using the covariance
fitting SPICE-methodology to obtain data-adaptive weights and …

arxiv linear regression math regression

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