A Response to Xiao's "Necessary and Sufficient Conditions of Unacceptable Solutions in LP Discriminant Analysis": Something is Amiss
这篇短文指出，最近对线性判别分析中不可接受解条件的所谓修正，实际上只是对先前结果的收紧，而非真正的修正。
Characterization of unacceptable solutions of linear programming methods for linear discriminant problems have been studied by many researchers. This note shows that a recent correction was not a correction but a tightening of prior results.