feature select的用法和樣例：
例句
- The chief obstacles to feature selection are noise and sparseness.
本文介紹了一種基于類(lèi)別特征域的特征選擇方法。 - The result of the feature selection in unsupervised learning is not as satisfactory as that in supervised learning.
無(wú)監督學(xué)習環(huán)境下的特征選擇往往無(wú)法取得像有監督學(xué)習環(huán)境下那樣令人滿(mǎn)意的效果。
