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博碩士論文 etd-0419118-080930 詳細資訊
Title page for etd-0419118-080930
論文名稱
Title
應用決策樹演算法於點膠製程瑕疵之預測與決策法則之建立
Using Decision Tree Algorithm for the Detection and Decision Rule Construction of Defect on Dispensing Process
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
63
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2018-04-16
繳交日期
Date of Submission
2018-05-29
關鍵字
Keywords
資料探勘、羅吉斯迴歸、隨機森林、決策樹、C5.0
C5.0, Decision tree, Random forest, Data mining, Logistic regression
統計
Statistics
本論文已被瀏覽 6014 次,被下載 3
The thesis/dissertation has been browsed 6014 times, has been downloaded 3 times.
中文摘要
近年來由於資訊科技發達,大數據的相關分析研究在各個產業領域的應用廣泛,為各個產業帶來不同的新思維在於產業創新應用,IC封裝測試常使用的表面黏著技術(SMT)-點膠製程,因許多非預期的因素影響,容易導致瑕疵產品的發生,且是在作業後,透過產品的檢查、測試才會發現瑕疵的現象。

瑕疵除了造成的低產出之外、生產材料的成本消耗以及發生後續要花費人力以及時間進行瑕疵分析,對於製造業來說是相當昂貴的成本支出。

本研究欲透過資料探勘技術,建立一瑕疵預測模型進而產生瑕疵的決策法則,作為瑕疵分析的參考依據,透過決策法則的內容作為作業檢查結果判定的參考依據,判斷檢查結果的作業狀態是否適合進行生產,適當的做出決策以避免/減少瑕疵發生的機會。

本研究透過移除正常數據以凸顯異常數據,以羅吉斯迴歸檢定異常數據欄位與瑕疵種類的關係顯著性,以隨機森林以及決策樹C5.0建立分類模型,並且將潛在規則發掘出來。研究結果顯示資料集的異常數據建立模型的平均預測正確率98.5%,平均敏感度76.33%,平均特異度99.86%,萃取出的規則與專家已知的經驗值相符。
Abstract
In recent years, due to the advancement of information technology, the analysis and research of big data has been widely applied in various industrial fields. The new thinking that brings different industries to various industries lies in the application of industrial innovation. Surface Mount Technology (SMT) - Dispensing Processes often used in IC packaging and testing, can easily lead to the occurrence of defective products due to many accidental factors, defects are then discovered through product inspection and testing after the dispensing process.
In addition to the low-yield caused by the production, the cost of the production materials, and the time and labor spent for follow-up analysis, are quite expensive for the manufacturing industry.
This study intends to establish a predictive model through data mining technique and identy decision rules. As a reference for defect analysis, the set of decision rules can be used for adjusting operational inspections, including judging whether the operating status of the inspection results is appropriate for production, and making decisions to avoid/reduce the occurrence of defects opportunely.
In this study, we try to identify some data fields that are highly related to defect type as verified by Logistic regression. The classification model was established using random forest and decision tree C5.0, and potential rules were discovered. The results show the predict model achieves the average prediction accuracy 98.5%, the average sensitivity 76.33%, and the average specificity 99.86%. The extracted rules are consistent with the conventional wisdom known to the experts.
目次 Table of Contents
論文審定書 i
誌 謝 ii
摘 要 iii
Abstract iv
圖目錄 vii
表目錄 viii
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 2
1.3 研究架構 3
第二章 文獻探討 4
2.1 資料探勘 4
2.3 資料探勘技術 6
2.3.1 羅吉斯迴歸 6
2.3.2 決策樹 7
2.3.2.1 決策樹的分枝準則 9
2.3.3 集成方法/隨機森林 10
2.4 應用決策樹於事故排除之相關研究 11
第三章 研究方法 12
3.1 研究架構/說明 12
3.2 點膠製程描述/瑕疵定義 13
3.2.1 點膠製程描述 13
3.2.2 點膠製程瑕疵定義 15
3.2.3 專家訪談 15
3.3 資料前置處理 16
3.3.1 資料說明 16
3.3.2 資料統計 17
3.3.3 資料前置處理 18
3.3.4 瑕疵欄位特徵說明 20
3.3.5 瑕疵特徵欄位擷取欄位 22
3.4 羅吉斯迴歸分析重要欄位 24
3.4.1 P-Value 28
3.5 決策樹C5.0分析重要欄位 36
3.6 隨機森林分析重要欄位重要性 38
第四章 實驗結果 40
4.1 分類模型建置與評估方法 40
4.2 模型的評估方法 41
4.3 預測結果 44
4.4 決策樹規則整理表(trial=10) 45
4.5 決策樹規則解釋 48
第五章 結論 51
5.1 研究結論 51
5.2 研究限制 51
參考文獻 52
參考文獻 References
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