Authors
Lijun Zhang, Zhi-Hua Zhou
Publication date
2018
Conference
NeurIPS 2018
Pages
1084-1094
Description
In this paper, we consider the problem of linear regression with heavy-tailed distributions. Different from previous studies that use the squared loss to measure the performance, we choose the absolute loss, which is capable of estimating the conditional median. To address the challenge that both the input and output could be heavy-tailed, we propose a truncated minimization problem, and demonstrate that it enjoys an excess risk, where is the dimensionality and is the number of samples. Compared with traditional work on -regression, the main advantage of our result is that we achieve a high-probability risk bound without exponential moment conditions on the input and output. Furthermore, if the input is bounded, we show that the classical empirical risk minimization is competent for -regression even when the output is heavy-tailed.
Total citations
201920202021202220232024426854
Scholar articles
L Zhang, ZH Zhou - Advances in Neural Information Processing Systems, 2018