A Two-Level Cache for Distributed Information Retrieval in Search Engines

被引:5
|
作者
Zhang, Weizhe [1 ]
He, Hui [1 ]
Ye, Jianwei [1 ]
机构
[1] Harbin Inst Technol, Sch Comp Sci & Technol, Harbin 150001, Peoples R China
来源
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
D O I
10.1155/2013/596724
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
To improve the performance of distributed information retrieval in search engines, we propose a two-level cache structure based on the queries of the users' logs. We extract the highest rank queries of users from the static cache, in which the queries are the most popular. We adopt the dynamic cache as an auxiliary to optimize the distribution of the cache data. We propose a distribution strategy of the cache data. The experiments prove that the hit rate, the efficiency, and the time consumption of the two-level cache have advantages compared with other structures of cache.
引用
收藏
页数:6
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