Journal of the Korean Society for Library and Information Science
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- P-ISSN1225-598X
- E-ISSN2982-6292
An Experimental Study on Semantic Searches for Image Data Using Structured Social Metadata
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Abstract
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.
- keywords
- Recall, Precision, Structured Folksonomy System, Tag Control, Query Expansion, 소셜 메타데이터, 태그, 폭소노미, 이미지, 시맨틱 검색, 질의 확장, 디지털 도서관, 통제어휘, 플리커, Recall, Precision, Structured Folksonomy System, Tag Control, Query Expansion
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