Journal of the Korean Society for Library and Information Science
- P-ISSN1225-598X
- E-ISSN2982-6292
An Experimental Study Investigating the Retrieval Effectiveness of a Video Retrieval System Using Tag Query Expansion
Abstract
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.
- keywords
- 텍사노미, 폭소노미, 태그, 비디오, 질의 확장, 시맨틱 검색, Structured Folksonomy, Relevance Judgment, Recall, Precision, Tag Gardening, Structured Folksonomy, Relevance Judgment, Recall, Precision, Tag Gardening
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