Sparsity and the Possibility of Inference
Sparsity and the Possibility of Inference
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稀疏性和推理的可能性
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Donghui Yan
中科院分区:
文献类型:
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作者:
P. Bickel;Donghui Yan
We discuss the importance of sparsity in the context of nonparametric regression and covariance matrix estimation. We point to low manifold dimension of the covariate vector as a possible important feature of sparsity, recall an estimate of dimension due to Levina and Bickel (2005) and establish some conjectures made in that paper.