The l1-regularized logistic regression (or sparse logistic regression) is a widely used method for simultaneous classification and feature selection. Although many recent efforts have been devoted to its efficient implementation, its application to high dimensional data still poses significant challenges. In this paper, we present a fast and effective sparse logistic regression screening rule (Slores) to identify the 0 components in the solution vector, which may lead to a substantial reduction in the number of features to be entered to the optimization. An appealing feature of Slores is that the data set needs to be scanned only once to run the screening and its computational cost is negligible compared to that of solving the sparse logistic regression problem. Moreover, Slores is independent of solvers for sparse logistic regression, thus Slores can be integrated with any existing solver to improve the efficiency. We have evaluated Slores using high-dimensional data sets from different applications. Extensive experimental results demonstrate that Slores outperforms the existing state-of-the-art screening rules and the efficiency of solving sparse logistic regression is improved by one magnitude in general.

本文提出了一种用于高维数据稀疏逻辑回归分类和特征选择的快速和有效的稀疏逻辑回归筛选规则（Slores），能够在解决稀疏逻辑回归问题的计算成本基础上实现数据集的一次扫描获得 0 组件，未来可与任何现有的稀疏逻辑回归引擎集成以提高效率。

一项适用于稀疏逻辑回归的安全筛选规则