Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Regularized K-means through hard-thresholding   We study a framework of regularized $K$-means methods based on direct
penalization of the size of the cluster centers. Different penalization
strategies are considered and compared through simulation and theoretical
analysis. Based on the results, we propose HT $K$-means, which uses an $\ell_0$
penalty to induce sparsity in the variables. Different techniques for selecting
the tuning parameter are discussed and compared. The proposed method stacks up
favorably with the most popular regularized $K$-means methods in an extensive
simulation study. Finally, HT $K$-means is applied to several real data
examples. Graphical displays are presented and used in these examples to gain
more insight into the datasets.

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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
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The categories of this paper are: eess
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg