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    题名: Folksonomy-based indexing for location-aware retrieval of learning contents
    作者: Shih, Wen-Chung;Tseng, Shian-Shyong
    贡献者: Department of Information Science and Applications
    关键词: Indexing (of information);Information services;Learning systems;Metadata;Search engines;Technology;Telecommunication;Bottom-up approach;Content retrieval;Context-aware;Environmental contexts;Folksonomy;Index creation;Information retrieval;International conferences;Learning contents;Learning object repositories;Learning paradigms;Location-aware;Sensor technologies;Similarity functions;Structural informations;Teaching materials;Ubiquitous learning;Ubiquitous technologies;Web resources;Wireless communication
    日期: 2008
    上传时间: 2010-04-08 20:36:11 (UTC+8)
    出版者: Asia University
    摘要: With the fast development of wireless communication and sensor technologies, ubiquitous learning has become a promising learning paradigm. In context-aware ubiquitous learning environments, it is desirable that learning content is retrieved according to environmental contexts, such as learners' location. However, traditional information retrieval schemes are not designed for content retrieval in ubiquitous learning environments. Recently, folksonomies have emerged as a successful kind of applications for categorizing web resources in a collaborative manner. This paper focuses on the index creation problem for location-aware learning content retrieval. First, we propose a bottom-up approach to constructing the index according to the similarity between tags, which considers metadata and structural information of the teaching materials annotated by the tags. Then, a maintenance mechanism is designed to efficiently update the index. The index creation method has been implemented, and a synthetic learning object repository has been built to evaluate the proposed approach. Experimental results show that this method can increase precision of retrieval. In addition, impacts of different similarity functions on precision are discussed.
    關聯: Proceedings - 5th IEEE International Conference on Wireless, Mobile, and Ubiquitous Technologies in Education, WMUTE 2008 :143-147
    显示于类别:[行動商務與多媒體應用學系] 會議論文


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