政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/14984
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    政大機構典藏 > 資訊學院 > 資訊科學系 > 期刊論文 >  Item 140.119/14984


    请使用永久网址来引用或连结此文件: https://nccur.lib.nccu.edu.tw/handle/140.119/14984


    题名: Allocation of Signature File on Parallel Device for WWW Index Servers
    作者: 沈錳坤
    Man-Kwan Shan
    李素瑛
    Suh-Yin Lee
    关键词: signature file,error correcting code,disk allocation,information retrieval
    日期: 1999-03
    上传时间: 2008-12-16 16:40:01 (UTC+8)
    摘要: Signature files are widely used in information retrieval and database. They act as search filters for content-based retrieval. In a large database server, a parallel device is utilized to achieve concurrency access. Efficient allocation of signature files on parallel devices minimizes the query response time and is important in the design of access methods for large scale index servers. We have developed an algorithm to organize the storage of signatures in parallel secondary storage to reduce the query response time. First, signature file is clustered into signature pages. Then, the clustered signature pages are distributed among the disks using the parity check matrix of error correcting code in coding theory. Through the construction of error correcting code, the least frequently simultaneously accessed pages are allocated on the same disk. Performance analysis shows that this algorithm improves the efficiency of access.
    關聯: Journal of Information Science and Engineering, 15(2), 199-215
    数据类型: article
    显示于类别:[資訊科學系] 期刊論文

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