The principalcomponent analysis implements the column-wise compression, using the correlation between attributes.
主成分分析使用属性之间的相关性实现按列压缩。
2
As the principalcomponent in glass, silicon dioxide was used as early as 5000 BC.
作为玻璃的主要成分，二氧化硅早在公元前5000年就被使用。
3
Through principalcomponent analysis, we have synthesized numerous indexes, (eliminated) information overlapping of the sample, and reduced the input dimension of BP network.