Extended approach three: a hierarchical reduction approach is imported, which is based on the combination of statistical feature selection and linear discriminant analysis.
拓展算法三：引入统计筛选和线性判别分析相结合的分层递阶约简算法。
2
To address the limitation that locality preserving projection (LPP) algorithm belongs to unsupervised, a novel approach, named as locality preserving discriminant analysis (LPDA) was proposed.