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研究生:吳建良
研究生(外文):Chien-Liang Wu
論文名稱:依使用者查詢及回饋探勘同類型喜好之網頁推薦系統
論文名稱(外文):A Web Page Recommendation System Based on Clusters of Query Interest
指導教授:柯佳伶柯佳伶引用關係
學位類別:碩士
校院名稱:國立臺灣師範大學
系所名稱:資訊教育研究所
學門:教育學門
學類:專業科目教育學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:57
中文關鍵詞:網頁探勘群集分析關聯規則合作式過濾推薦系統
外文關鍵詞:Web MiningClustering AnalysisAssociation RuleCollaborative FilteringRecommendation System
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本論文提出建構一個網頁查詢推薦系統之相關技術。此系統從使用者查詢關鍵字及瀏覽網頁的記錄中過濾出有用的資訊,以使用者查詢關鍵字、瀏覽網頁、以及其回饋值構成使用者查詢交易記錄單位,並記錄在使用者側寫之中。本論文提出瀏覽關聯二分圖群集演算法,以二元位元向量來加快查詢關鍵字相似度的計算,找出查詢關鍵字和瀏覽網頁的聚落(查詢喜好聚落)。具有多種不同類型喜好的使用者可分屬於多個查詢喜好聚落中,使得以合作式過濾做推薦時,具有部份喜好相同的使用者瀏覽行為也能提供重要的推薦資訊。接下來,系統根據查詢喜好聚落將使用者查詢交易記錄做分割,針對每個分割探勘出查詢關鍵字與網頁文章之間的關聯規則,並以使用者瀏覽網頁回饋值計算出關聯規則的支持度與確信度。最後根據這些探勘所得的資訊,對於會員使用者,系統以合作式過濾方式,推薦使用者側寫所包含的查詢喜好聚落中相關性高的網頁文章給使用者。對於匿名使用者,系統則提供如搜尋引擎以關鍵字搜尋的方式,依據查詢關鍵字所屬聚落中推薦相關性高的網頁,使查詢結果更精簡並切合使用者需求。

Most previous works on recommendation systems of web pages were designed based on collaborative filtering according to the clusters of user browsing behavior. In these approaches, a user only belongs to certain one cluster. If most users have multiple kinds of browsing interests, the number of users in the same cluster will be small and the information used for recommendation is limited. In addition, the information of users who have partially similar behavior is not considered. In this thesis, the strategies for constructing a query and recommendation system of web pages are proposed. First, the query keywords, browsed web pages, and user feedback values are extracted from web logs to be query transactions. A clustering algorithm is proposed to find the clusters of queries and related web pages, called the clusters of query interest , from the query transactions. A user who has multiple kinds of query interests can belong to more than one cluster. Then user query transactions are partitioned based on the clusters of query interest. In each partition, the association rules of queries and web pages are mined, where the support and confidence of rules are computed based on feedback values of users. According to the mined information, two main functions are provided in the system. A member user can ask a recommendation request. Based on clusters of query interest contained in the user profile, the highly associated web pages are recommended. On the other hand, an anonymous user can ask a query recommendation request to the system by giving query keywords. According to the cluster of query interest that the query keywords belong to, the highly associated web pages are returned as query results. Therefore, the query results will be more simplified and meet the requirements of most users.

附表目錄 ii
附圖目錄 iii
演算法目錄 v
第一章 緒論 1
1.1 背景與研究動機 1
1.2 相關研究 2
1.3 研究目標及方法 6
1.4 論文架構 8
第二章 名詞定義與系統簡介 9
2.1 基本定義 9
2.2 系統架構簡介 8
第三章 查詢關鍵字與瀏覽網頁之關聯探勘方法 21
3.1 資料群集分析 21
3.2 關鍵字與網頁之關聯式規則推導 27
第四章 合作式查詢推薦系統 36
4.1 依使用者側寫資料做推薦 36
4.2 依與查詢關鍵字做查詢推薦 38
4.3 推薦值的即時更新 38
第五章 系統實作與實驗 40
5.1 系統實作 40
5.2 實驗 46
第六章 總結與未來研究方向 53
參考文獻 55

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