2014

Robust Estimation of High-Dimensional Mean Regression

Fan, Jianqing, Li, Quefeng, Wang, Yuyan

Understand

Data subject to heavy-tailed errors are commonly encountered in various scientific fields, especially in the modern era with explosion of massive data.

  • To address this problem, procedures based on quantile regression and Least Absolute Deviation (LAD) regression have been devel- oped in recent years.
  • These methods essentially estimate the conditional median (or quantile) function.
  • They can be very different from the conditional mean functions when distributions are asymmetric and heteroscedastic.

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