Day_054_HW.ipynb

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    "# 作業\n",
    "* 試著想想看, 非監督學習是否有可能使用評價函數 (Metric) 來鑑別好壞呢?  \n",
    "(Hint : 可以分為 \"有目標值\" 與 \"無目標值\" 兩個方向思考)"
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   "source": [
    "- 我們無法事先知道是如何分群的，分群後的結果效果是否優良都比監督式來的困難，不容易使用評鑑函數來鑑別好壞。"
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