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研究生: 葉幸哲
Xing-Zhe Ye
論文名稱: 基於多感測器訊號與機器學習技術之刀具磨耗分類與預測
Tool Wear Classification and Prediction based on Multiple Sensors and Machine Learning Techniques
指導教授: 劉孟昆
Meng-Kun Liu
口試委員: 藍振洋
Chen-Yang Lan
劉益宏
Yi-Hung Liu
學位類別: 碩士
Master
系所名稱: 工程學院 - 機械工程系
Department of Mechanical Engineering
論文出版年: 2022
畢業學年度: 110
語文別: 中文
論文頁數: 107
中文關鍵詞: 刀具磨耗特徵指標特徵提取特徵選擇特徵降維迴歸模型分類模型共線性診斷支持向量機隨機森林迴歸
外文關鍵詞: Tool wear, features indexes, feature extraction, feature selection, feature dimensionality reduction, regression model, classification model, collinearity diagnosis, support vector machine, random forest regression
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  • 摘要 I Abstract II 誌謝 IV 目錄 V 表目錄 VIII 圖目錄 X 第一章、緒論 1 1.1 研究背景與動機 1 1.2 論文架構 3 第二章、文獻回顧 4 2.1 刀具磨耗 4 2.2 特徵處理 5 2.2.1 特徵前處理 5 2.2.2 特徵提取 5 2.2.3 特徵選擇 6 2.3 機器學習 7 2.3.1 機器學習之分類 8 2.3.2 迴歸分析與預測 10 第三章、研究方法 11 3.1 實驗規劃 11 3.1.1 實驗設備與設置 11 3.1.2 刀具磨耗實驗 15 3.1.3 磨耗結果 17 3.1.4 實驗流程 18 3.2 特徵提取 20 3.2.1 時域特徵 20 3.2.2 頻域特徵 23 3.3 特徵選擇 24 3.3.1 變異數分析(analysis of variance, ANOVA) 24 3.3.2 皮爾森相關係數(Pearson correlation coefficient, PCC) 25 3.4 特徵降維 26 3.4.1 線性判別分析(Linear discriminant analysis, LDA) 26 3.4.2 主成分分析(principal component analysis, PCA) 27 3.5 共線性診斷 28 3.5.1 方差膨脹因子(variance inflation factor, VIF) 28 3.5.2 迴歸模型正規化 29 3.6 支持向量機(support vector machine, SVM) 31 3.7 隨機森林迴歸 35 第四章、分類結果分析 37 4.1 分類分析流程 37 4.1.1 無獨立特徵集之分析流程 38 4.1.2 有獨立特徵集之分析流程 40 4.2 ANOVA特徵選擇 42 4.2.1 ANOVA (無獨立特徵集) 42 4.2.2 ANOVA (有獨立特徵集) 45 4.3 特徵降維 48 4.3.1 PCA降維分析(無獨立特徵集) 48 4.3.2 PCA降維分析(有獨立特徵集) 49 4.3.3 LDA降維分析 50 4.4 分類結果 51 第五章、迴歸分析 55 5.1 迴歸分析流程 55 5.2 迴歸模型 57 5.3 線性迴歸模型分析 58 5.3.1 皮爾森相關係數(PCC) 58 5.3.2 VIF迴歸分析 60 5.3.3 LASSO迴歸分析 62 5.3.4 PCR分析 63 5.2.5 線性迴歸分析總結 65 5.4 非線性迴歸模型分析 66 5.4.1 VIF迴歸分析 66 5.4.2 LASSO迴歸分析 67 5.4.3 PCR分析 67 5.4.4 非線性迴歸分析總結 68 5.5 迴歸模型與機器學習模型比較 71 第六章、結果討論與未來展望 65 6.1 分類分析結果討論 65 6.2 迴歸分析結果討論 66 6.3 未來展望 68 第七章、參考文獻 69 附錄A、刀具磨耗圖 73 附錄B、各實驗皮爾森相關係數 74 附錄C、各實驗主成分累積貢獻比 77 附錄D、各實驗共線性診斷後平均刀具磨耗預測曲線 80 附錄E、混合特徵集特徵處理後結果 83

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