Then the high order model was reduced by the modal aggregation method. 采用模態(tài)集結法對其高階模型進(jìn)行降階。
In pattern recognition and in image processing, Feature extraction is a special form of dimensionality reduction. 在模式識別和圖像處理領(lǐng)域中,特征提取是一種特殊的維數降階的形式。