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研究生:王傑生
研究生(外文):CHIEH-SHENG WANG
論文名稱:應用大數據分析開發適性化教材推薦系統
論文名稱(外文):Applying Big Data Analytics to Develop an Adaptive Course Material Recommendation System
指導教授:楊鎮華楊鎮華引用關係
學位類別:碩士
校院名稱:國立中央大學
系所名稱:資訊工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:中文
論文頁數:47
中文關鍵詞:開放教育資源推薦系統協同過濾Clickstream
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近年來開放教育資源(Open Educational Resources)的興起,允許使用者開放
修改及分享OER 教材並提供教師免費或是低成本的教學資源以降低教師提供課
程的門檻,提供更多讓學習者受教的機會。
然而開放式教育資源發展至今,教材數目越來越龐大,導致使用者在為數眾
多的教材中尋找所需的教材時需要花費大量的時間及人力。本研究所應用的開放
教育資源平台同樣也遭遇相同的問題,透過將推薦系統導入該平台雖然可以有效
的減輕教材數目所帶來的影響,然而現有的推薦系統使用內容導向式演算法產生
與教材內容相關的教材推薦雖然可以推薦相關教材,但是卻缺少使用者回饋,修
正教材推薦的結果使推薦結果能更加貼近使用者。
因此,本研究透過蒐集使用者在開放教育資源的瀏覽歷程(Click-stream)作為
推測使用者喜好的參考,為了處理大量的使用者瀏覽歷程資料,本研究使用Spark
資料分析框架作為開發工具,將使用者依照喜好相似程度透過分群演算法建立使
用者族群模型,最後結合瀏覽歷程及使用者族群模型推測使用者的喜好並給予適
性化的教材推薦,使教材推薦結果更符合使用者需求且幫助使用者縮短搜尋教材
的時間。
Open Educational Resources has become popular for serval years. It allows user
to share and revise the open educational resources. By providing no or low cost
educational resources to institutions and educators brings more opportunity to the
students to access to education.
However, with developed for many years the amount of open educational
resources has become more and more huge, it costs a lot of time for users to find the
right educational resource and it becomes difficult for users to find the educational
resources that they really want. This paper find that an open educational resources
platform has the same problem. Although it already has a content-based
recommendation system, the lack of user feedbacks leads to it cannot make the
recommendation result fit to the user requirement.
In this paper, we collect the click-stream from user as the preference of user. In
order to deal with vast amount of data, we use Spark to build user cluster model by
user’s preference. Finally, we combined current user’s preference with user cluster
model and recommended the adaptive educational resource to current user.
摘要 ........................................................................................................................... i
ABSTRACT .............................................................................................................. ii
圖目錄 ..................................................................................................................... iv
表格目錄 .................................................................................................................. v
1 緒論 .................................................................................................................. 1
1.1 研究背景與動機 ..................................................................................... 1
1.2 研究目的 ................................................................................................. 2
2 文獻探討 ........................................................................................................... 3
2.1 開放式教育資源(OER) ........................................................................... 3
2.2 瀏覽歷程(Clickstream)............................................................................ 3
2.3 推薦系統 ................................................................................................. 4
3 系統設計 ........................................................................................................... 6
3.1 開發環境與工具 ..................................................................................... 8
3.2 資料收集 ............................................................................................... 10
3.3 資料儲存 ............................................................................................... 13
3.4 資料萃取與分析 ................................................................................... 14
3.5 資料使用 ............................................................................................... 24
4 結果 ................................................................................................................ 28
5 討論與建議 ..................................................................................................... 32
5.1 討論 ...................................................................................................... 32
5.2 建議 ...................................................................................................... 33
參考文獻 ................................................................................................................ 34
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