• Journal of the Korean Society for information Management
• /
• v.27 no.4
• /
• pp.283-307
• /
• 2010

Recently the concept of Library 3.0 and its substance have been discussed by scholars and specialists along with Web 3.0. This study aims to analyze the debates on Library 3.0 and review the concept of Library 3.0. In addition, this study proposes library 3.0 service model based on its analysis. The keywords of in the proposed Library 3.0 model in this study is the Social Semantic Digital Library(SSDL), the Linked Library, and the Mobile Library. First, the SSDL means a real knowledge sharing and cooperation by applying both semantic web technology that which can manage data by machines and social networking services into e-libraries. Second, the Linked Library indicates that library resources become linked data that link libraries in all over the world. Finally, the Mobile Library refers to ubiquitous library equipped with RFID and mobile technology.

• Journal of the Korean Society for information Management
• /
• v.26 no.1
• /
• pp.215-230
• /
• 2009

We propose semantic model that is possible to apply for the bibliographic metadata of domestic digital library by analysing bibliographic metadata models like MARC, DC, MODS, JeromeDL's metadata model MarcOnt as the representative case of semantic digital library and FRBR model as the conceptual model.

• Journal of the Korean Society for information Management
• /
• v.26 no.3
• /
• pp.45-67
• /
• 2009

The ecosystem of the Library has been radically changing in the advent of ubiquitous information service technology. We are already aware of the digital library due to popularizing digital information resources and we are impressed with Library 2.0 and Social Semantic Digital Library of user-centered, service-oriented library. We summarize the ultimate goal of the evolution of library systems as knowledge services and propose a logical model of library system for the realization of knowledge services. This local model can be applied for a library framework to harmonize the diverse knowledge resources, active users with participation and collaboration, the innovation of library business and ubiquitous information service technologies to achieve the missions of library in knowledge-intensive society.

• Journal of the Korean Society for Library and Information Science
• /
• v.44 no.1
• /
• pp.117-135
• /
• 2010

We designed a structured folksonomy system in which queries can be expanded through tag control; equivalent, synonym or related tags are bound together, in order to improve the retrieval efficiency (recall and precision) of image data. Then, we evaluated the proposed system by comparing it to a tag-based system without tag control in terms of recall, precision, and user satisfaction. Furthermore, we also investigated which query expansion method is the most efficient in terms of retrieval performance. The experimental results showed that the recall, precision, and user satisfaction rates of the proposed system are statistically higher than the rates of the tag-based system, respectively. On the other hand, there are significant differences among the precision rates of query expansion methods but there are no significant differences among their recall rates. The proposed system can be utilized as a guide on how to effectively index and retrieve the digital content of digital library systems in the Library 2.0 era.

• Journal of the Korean Society for Library and Information Science
• /
• v.44 no.4
• /
• pp.75-94
• /
• 2010

This study designed a pilot system in which queries can be expanded through a tag ontology where equivalent, synonymous, or related tags are bound together, in order to improve the retrieval effectiveness of videos. We evaluated the proposed pilot system by comparing it to a tag-based system without tag control, in terms of recall and precision rates. Our study results showed that the mean recall rate in the structured folksonomy-based system was statistically higher than that in the tag-based system. On the other hand, the mean precision rate in the structured folksonomy-based system was not statistically higher than that in the tag-based system. The result of this study can be utilized as a guide on how to effectively use tags as social metadata of digital video libraries.