[1]束文杰,时亚南,于国欣. 线性散列在全文检索中的应用研究[J].计算机技术与发展,2015,25(06):197-201.
　SHU Wen-jie,SHI Ya-nan,YU Guo-xin. Research on Application of Linear Hash in Full-text Retrieval[J].,2015,25(06):197-201.
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 线性散列在全文检索中的应用研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年06期
页码:
197-201
栏目:
应用开发研究
出版日期:
2015-06-10

文章信息/Info

Title:
 Research on Application of Linear Hash in Full-text Retrieval
文章编号:
1673-629X（2015)06-0197-04
作者:
 束文杰; 时亚南; 于国欣
 新疆维吾尔自治区特种设备检验研究院
Author(s):
 SHU Wen-jie; SHI Ya-nan; YU Guo-xin
 hash table；full-text retrieval system；linear hash；inverted index
关键词:
 ; 散列表; 全文检索系统; 线性散列; 倒排索引
分类号:
TP39
文献标志码:
A
摘要:
 散列表是一种常见的数据结构，理论上它能以常数级时间复杂度O (1)执行查询操作，因而在计算机技术中具有广泛的应用。在大规模用户并发向全文检索系统请求数据的情况下，系统会出现响应速度慢以及检索效率低等问题。为解决上述问题，引入了动态散列技术—线性散列，结合全文检索系统的实际需要，提出了一种分块式线性散列倒排索引的构建方法，并详细阐述了该线性散列索引的索引结构、存储方式、设计思路和实现细节。经大量实验测试，基于线性散列的倒排索引具有极快的响应速度，明显提高了全文检索的查询性能。
Abstract:
 Hash table is a common data structure,and theoretically it can execute the query operation in a constant level time complexity O (1),so it has a wide application in the computer technology. Under the circumstances that large-scale concurrent users try to request data from the full-text retrieval system,the system will be slow to respond and retrieve in low efficiency. In order to solve these prob-lems,introduce a dynamic hashing technique—linear hash. Combined with the full-text retrieval system’ s actual needs,propose a method of block inverted index built on linear hash,and elaborate the linear hash index’ s index structure,storage pattern,design ideas and imple-mentation details. After a large number of experimental tests, the inverted index based on linear hash has an extremely fast response speed,and significantly improves the full-text retrieval’ s query performance.

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更新日期/Last Update: 2015-08-05