摘要
本文介绍了一种非线性降维方法—局部线性嵌入法,并通过实例与PCA对比,论证了LLE在处理非线性高维数据中的优越性。
In this paper, a nonlinear dimensionality reduction methods - Locally Linear Embedding is introduced. Comparing with PCA, LLE performs better for nonlinear highdimensional data.
出处
《数学理论与应用》
2009年第4期38-42,共5页
Mathematical Theory and Applications
关键词
降维
局部线性嵌入法
主成分法
可视化
Dimensionality reduction Locally linear embedding Principal component analysis Visualization