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An Experimental Study Investigating the Retrieval Effectiveness of a Video Retrieval System Using Tag Query Expansion

  • Journal of the Korean Society for Library and Information Science
  • 2010, 44(4), pp.75-94
  • DOI : 10.4275/KSLIS.2010.44.4.075
  • Publisher : 한국문헌정보학회
  • Research Area : Interdisciplinary Studies > Library and Information Science
  • Received : September 6, 2010
  • Accepted : November 9, 2010

Kim, Hyun Hee 1

1명지대학교

Accredited

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.

Citation status

* References for papers published after 2022 are currently being built.

This paper was written with support from the National Research Foundation of Korea.