

資料前處理為了避免garbage in, garbage out 

除了one-hot encoding , ordinal encoding 還有target encoding 

但是有時候算出平均值,會對資料處理沒幫助 (無法區分班級)

那就替換成標準差吧 





<h2 class="lexical__h2"><br><br></h2><p class="lexical__paragraph" dir="ltr"><span style="white-space: pre-wrap;">資料前處理為了避免garbage in, garbage out </span></p><p class="lexical__paragraph" dir="ltr"><span style="white-space: pre-wrap;">除了one-hot encoding , ordinal encoding 還有target encoding </span></p><p class="lexical__paragraph" dir="ltr"><span style="white-space: pre-wrap;">但是有時候算出平均值,會對資料處理沒幫助 (無法區分班級)</span></p><p class="lexical__paragraph" dir="ltr"><span style="white-space: pre-wrap;">那就替換成標準差吧&nbsp;</span></p><p class="lexical__paragraph" dir="ltr"><br></p><div class="lexical__image center"><div class="lexical__imageWrapper"><img src="https://images.vocus.cc/1fd4857f-eb21-4627-8216-77f76a789dec.gif" data-src="https://images.vocus.cc/1fd4857f-eb21-4627-8216-77f76a789dec.gif" class="lazy" data-original-src="https://images.vocus.cc/1fd4857f-eb21-4627-8216-77f76a789dec.gif" data-lowquality="true" data-width="600" data-height="337" data-retry="0" onerror="Number(this.dataset.retry) > 4 ? this.src='/static/default-error-img.svg': (() => {this.src=this.dataset.originalSrc; this.dataset.retry = Number(this.dataset.retry)+1;})()" alt="raw-image"></div><div></div></div><p class="lexical__paragraph"><br></p>

以行動支持創作者！付費即可解鎖

目標標準差編碼