臺灣博碩士論文加值系統

隨著智慧型手機應用程式的進步，使手機上儲存了許多重要的個人隱私，這使手機安全機制越來越被重視。在傳統的手機鎖上，都是一次驗證的機制，因此希望藉由讀取手機使用者的行為作不中斷的識別使用者。本研究會使用手機應用程式中能持續收集使用者操作資訊，以觸碰螢幕與方位感測器當作識別使用者的特徵資訊，並依照現有的相關文獻所遭遇到的問題提出改善並強化其識別效果。本研究最後會提出一個結合整體學習（ensemble learning）與Multiple Model的驗證機制，根據實驗此驗證機制的識別效果EER（Equal Error Rate）在1.5%左右，提升了現有的驗證機制。

With the advances in smartphone applications, data on the phone to save a lot of important personal privacy, which makes mobile phone security, is increasingly valued. In the traditional phone lock, are one-time validation mechanisms, so I hope by reading the phone sensor without interrupting the user's behavior for authentication the user.
This study will be used in mobile applications can continue to collect user operation information to touch the screen and orientation sensors to identify the user as a characteristic information, and in accordance with the existing literature encountered issues raised to improve and strengthen their identification effect.
Finally, this study will propose a combination of the ensemble learning and authentication mechanism by multiple models, according to the experimental results of this verification mechanism to identify EER (Equal Error Rate) of 1.5% or less, to enhance the existing authentication mechanisms.

中文摘要 i
Abstract ii
一、緒論 1
1.1. 研究背景 1
1.2. 研究動機 3
1.3. 研究目的 6
1.4. 論文架構 6
二、文獻探討 7
2.1. 重新驗證機制(Re-Authentication) 7
2.2. 手機感測器 8
2.2.1. 方位感測器 8
2.2.2. 觸控螢幕 10
2.3. 使用者驗證系統 11
2.3.1. Dynamics-based 11
2.3.2. Histogram-based 12
三、架構設計 14
3.1. Multiple Pattern的問題 14
3.2. 結合整體學習機制 18
3.3. 識別架構 20
3.3.1. 分類器 20
3.3.2. 識別特徵 22
3.3.3. 權重運算 24
四、實驗設計 26
4.1. 資料來源 26
4.2. Multiple Pattern問題 28
4.3. 提出識別架構的效果 31
五、實驗結果與分析 32
5.1. Multiple Pattern問題的結果與分析 33
5.2. 提出識別架構的效果與分析 38
六、結論與未來展望 41
6.1. 結論 41
6.2. 未來展望 42
參考文獻 43
附錄一 45
附錄二 47
附錄三 48

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