2002年
QoS-based media retrieval for networked digital archives
Journal of Network and Computer Applications
- 巻
- 25
- 号
- 4
- 開始ページ
- 309
- 終了ページ
- 317
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1006/jnca.2002.0137
- 出版者・発行元
- Academic Press
When digital multimedia data are retrieved from distributed digital archives, Quality of Service (QoS) criteria can be used to enhance the user's usability. In this paper, assuming best-effort networks as the infrastructure, we describe a multimedia (MM) retrieval method based on the QoS concept for MM data archives in heterogeneous communication environments. We introduce a multi-level QoS model and use response time, which is calculated based on a system-level QoS criterion, as an application-level QoS criterion. The order of retrieving MM data is determined, based on both key-word matching using key words specified by the user and the application-level QoS criterion. A prototype system is developed for retrieving sightseeing-related MM data including video, images, voice, and text. The proposed method of data retrieval has a shorter response time than methods that do not take QoS criteria into account. Also, a search method based on key-word association is described that enables wide-area search and effective information finding.
- ID情報
-
- DOI : 10.1006/jnca.2002.0137
- ISSN : 1084-8045
- SCOPUS ID : 0036819297