《machine learning》引言
一、引言introduction
1.2 什麼是機器學習
解決任務T,進行效能度量P,通過P測定在任務T上的表現因經驗E而提高
1.3 監督學習
教計算機完成某事,給定一個帶標籤(正確解)的資料集。
房價預測問題:給定一組帶正確售價的房價資料集。通過演算法預測其他想要賣掉房子的房價
迴歸問題:預測輸出連續的數值輸出(單個價格輸出)
分類問題:預測一個離散值輸出(多個輸出值)
1.4 非監督學習
資料集無標籤,計算機自己找到某種結構。(分類演算法等)
如:自動將客戶分類,自動分類市場
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