教師資料查詢 | 類別: 期刊論文 | 教師: 趙榮耀 RON-YAW CHAO (瀏覽個人網頁)

標題:Ranking Metrics and Search Guidance for Learning Object Repository
學年98
學期2
出版(發表)日期2010/07/23
作品名稱Ranking Metrics and Search Guidance for Learning Object Repository
作品名稱(其他語言)
著者Neil Y. Yen; Timothy K. Shih; Louis R. Chao; Qun Jin
單位
出版者
著錄名稱、卷期、頁數IEEE Transactions on Learning Technologies 3(3), p.250-264
摘要In line with the popularity of the Internet and the development of search engine, users request information through web-based services. Although general-purpose searching such as one provided by Google is powerful, searching mechanism for specific purposes could rely on metadata. In distance learning (or e-learning), SCORM provides an efficient metadata definition for learning objects to be searched and shared. To facilitate searching in a federated repository, CORDRA provides a common architecture for discovering and sharing Learning Objects. We followed SCORM and CORDRA specifications to develop a registry system, called the MINE Registry, for storing and sharing 20,738 Learning Objects created in the past five years. As a contribution, we propose the concept of “Reusability Tree” to represent the relationships among relevant Learning Objects and enhance CORDRA. We further collect relevant information, while users are utilizing Learning Objects, such as citations and time period persisted. The feedbacks from the user community are also considered as critical elements for evaluating significance degree of Learning Objects. Through theses factors, we propose a mechanism to weight and rank Learning Objects in the MINE Registry, in addition to other external learning objects repositories. As a practical contribution, we provide a tool called “Search Guider” to assist users in finding relevant information in Learning Objects based on individual requirements.
關鍵字CORDRA;LOM;learning object repository;ranking metrics;search guidance;reusability tree;social feedback, information retrieval;distance learning
語言英文(美國)
ISSN1939-1382
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
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