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題名 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
關鍵詞 signature file,error correcting code,disk allocation,information retrieval
日期 1999-03
上傳時間 16-Dec-2008 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
資料類型 article
dc.creator (作者) 沈錳坤zh_TW
dc.creator (作者) Man-Kwan Shan-
dc.creator (作者) 李素瑛zh_TW
dc.creator (作者) Suh-Yin Leeen_US
dc.date (日期) 1999-03en_US
dc.date.accessioned 16-Dec-2008 16:40:01 (UTC+8)-
dc.date.available 16-Dec-2008 16:40:01 (UTC+8)-
dc.date.issued (上傳時間) 16-Dec-2008 16:40:01 (UTC+8)-
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/14984-
dc.description.abstract (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.en-US
dc.format application/en_US
dc.language enen_US
dc.language en-USen_US
dc.language.iso en_US-
dc.relation (關聯) Journal of Information Science and Engineering, 15(2), 199-215en_US
dc.subject (關鍵詞) signature file,error correcting code,disk allocation,information retrievalen-US
dc.title (題名) Allocation of Signature File on Parallel Device for WWW Index Serversen_US
dc.type (資料類型) articleen