集成路径稳定性选择

Integrated Path Stability Selection

Journal of the American Statistical Association · 2025
被引 1
ABS 4

中文导读

提出一种集成稳定性路径的新方法,比传统稳定性选择提供更紧的假阳性上界,在相同目标假阳性数下能选出更多真正相关特征,计算量不变。

Abstract

Stability selection is a popular method for improving feature selection algorithms. One of its key attributes is that it provides theoretical upper bounds on the expected number of false positives, E(FP), enabling false positive control in practice. However, stability selection often selects few features because existing bounds on E(FP) are relatively loose. In this paper, we introduce a novel approach to stability selection based on integrating stability paths rather than maximizing over them. This yields upper bounds on E(FP) that are much stronger than previous bounds, leading to significantly more true positives in practice for the same target E(FP). Furthermore, our method requires no more computation than the original stability selection algorithm. We demonstrate the method on simulations and real data from two cancer studies.

特征选择机器学习统计学习生物信息学