主题报告：学习对象的重用性和可检索性
Reusability and Searchability of Learning Objects
报告人：Timothy K. Shih [台湾中央大学]
报告时间：6月 23日（周六）9: 30～11: 00
报告地点：上海大学延长校区行健楼734室
邀请人：骆祥峰副研究员
报告摘要：
Learning Objects (LOs) are atomic elements of lecture materials in e-learning. Creating high quality LOs is time consuming. Automatic mechanisms to support LOs reuse must be investigated. When an author creates learning materials, in order to reuse LOs from another person, it is necessary to search for these LOs. Thus, reusability and searchability are co-related research issues. This keynote starts from an introduction of metadata, follows by a discussion of the requirements to build a distributed repository, where LOs can be stored and shared. The concept of "Reusability Tree" to represent the relationships among relevant LOs and an infrastructure of LO repository will be presented. Relevant information while users are utilizing LOs, such as citations and time period persisted as well as user feedbacks will be used as critical elements for evaluating significance degree of LOs. Through theses factors, a mechanism to weight and rank LOs is discussed. The LONET (Learning Object Network), as an extension of Reusability Tree, is addressed and constructed to clarify the vague reuse scenario in the past, and to summarize collaborative intelligence through past interactive usage experiences. As a practical contribution, an adaptive algorithm is proposed to mine the social structure in our repository. The algorithm generates adaptive routes, based on past usage experiences, by computing possible interactive input, such as search criteria and feedback from instructors, and assists them in generating specific lectures.
Brief Biography:
Dr. Shih is a Professor at the National Central University, Taiwan. He was the Dean of College of Computer Science, Asia University, Taiwan and the Department Chair of the CSIE Department at Tamkang University, Taiwan. Dr. Shih is a Fellow of the Institution of Engineering and Technology (IET). In addition, he is a senior member of ACM and a senior member of IEEE. Dr. Shih has edited many books and published over 460 papers and book chapters, as well as participated in many international academic activities, including the organization of more than 60 international conferences. He was the founder and co-editor-in-chief of the International Journal of Distance Education Technologies, published by the Idea Group Publishing, USA. Dr. Shih is an associate editor of the IEEE Transactions on Learning Technologies. He was an associate editor of the ACM Transactions on Internet Technology and an associate editor of the IEEE Transactions on Multimedia.