To compress the dimensions of characteristic vector and make the design of classificatory in the characteristic space with lower dimensions is the purpose of characteristic selection and extraction.
To compress the dimensions of characteristic vector and make the design of classificatory in the characteristic space with lower dimensions is the purpose of characteristic selection and extraction.
摘要压缩特徵向量的维数，在较低维特徵空间中进行分类器设计是特徵选择与提取的目的。