An efficient ADMM algorithm for high dimensional precision matrix estimation via penalized quadratic loss
An efficient ADMM algorithm for high dimensional precision matrix estimation via penalized quadratic loss
复制标题
一种通过惩罚二次损失进行高维精度矩阵估计的高效 ADMM 算法
DOI:
10.1016/j.csda.2019.106812
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发表时间:
2018-11
影响因子:
1.8
通讯作者:
Binyan Jiang
中科院分区:
文献类型:
--
作者:
Cheng Wang;Binyan Jiang
The estimation of high dimensional precision matrices has been a central topic in statistical learning. However, as the number of parameters scales quadratically with the dimension p, many state-of-the-art methods do not scale well to solve problems with a very large p. In this paper, we propose a very efficient algorithm for precision matrix estimation via penalized quadratic loss functions. Under the high dimension low sample size setting, the computation complexity of our algorithm is linear in both the sample size and the number of parameters. Such a computation complexity is in some sense optimal, as it is the same as the complexity needed for computing the sample covariance matrix. Numerical studies show that our algorithm is much more efficient than other state-of-the-art methods when the dimension p is very large.
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通讯作者:
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DOI:
--
发表时间:
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期刊:
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