臺灣博碩士論文加值系統

摘要 i
Abstract ii
目錄 iv
圖目錄 vi
表目錄 vii
一、 緒論 1
1-1研究背景 1
1-2研究動機 3
1-3研究貢獻 3
1-4論文架構 4
二、 相關研究 5
2-1以EM演算法估計過去的機器良率之方法 5
2-2時間序列預測模型 7
三、 問題定義與研究 14
3-1問題定義 14
3-2目標式定義 15
四、 實驗與討論 18
4-1實驗資料集 18
4-2 資料前處理 20
4-3實驗一：EM (Previous)、ARIMA、XGBoost比較 23
4-4實驗二：XGBoost特徵數調整 32
4-5實驗三：以週為單位及天為單位的預測機器良率比較 37
五、 應用 40
5-1機器維修預警 40
5-2機器排程推薦 42
六、 結論與未來展望 44
6-1結論 44
6-2未來展望 44
參考文獻 46

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