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arXiv 1503.03520math.OC
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L1-Regularized最小二乘问题的一阶和二阶方法的性能

Performance of First- and Second-Order Methods for L1-Regularized Least Squares Problems

Kimon Fountoulakis, Jacek Gondzio

摘要:

我们研究了一阶和二阶最优化方法的性能为l1正则化稀疏最小二乘问题的条件的变化和问题的维度增加到一万亿。一个严格定义的发电机,它允许控制的尺寸,空调和稀疏的问题。该生成器对内存的要求非常低,并且可以很好地适应问题的维度。

英文摘要:

We study the performance of first- and second-order optimization methods for l1-regularized sparse least-squares problems as the conditioning of the problem changes and the dimensions of the problem increase up to one trillion. A rigorously defined generator is presented which allows control of the dimensions, the conditioning and the sparsity of the problem. The generator has very low memory requirements and scales well with the dimensions of the problem.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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