As a multianalysis tool , Principle Component Analysis ( PCA ) is commonly used in the feature extraction.

特征提取和波段选择是目前国内外主要使用的降维算法.

互联网

This article obtains from the concept, between multianalysis modern physical distribution and international trade relations.

本文从概念入手, 详细分析了现代物流与国际贸易之间的关系.

互联网