Title
PAAP: prefetch-aware admission policies for query results cache in web search engines
Abstract
Caching query results is an efficient technique for Web search engines. Admission policy can prevent infrequent queries from taking space of more frequent queries in the cache. In this paper we present two novel admission policies tailored for query results cache. These policies are based on query results prefetching information. We also propose a demote operation for the query results cache to improve the cache hit ratio. We then use a trace of over 5 million queries to evaluate our admission policies, as well as traditional policies. Experimental results show that our prefetch-aware admission policies can achieve hit ratios better than state-of-the-art admission policies.
Year
DOI
Venue
2014
10.1145/2600428.2609490
SIGIR
Keywords
Field
DocType
prefetching,admission policy,web search engine,search process,performance evaluation,caching
Web search engine,Web search query,Search engine,Information retrieval,Cache,Computer science,Cache algorithms,Instruction prefetch,Smart Cache,Database
Conference
Citations 
PageRank 
References 
4
0.39
4
Authors
7
Name
Order
Citations
PageRank
hongyuan ma1504.54
Wei Liu2131.86
Bingjie Wei340.39
Liang Shi429834.96
Xiuguo Bao592.54
Lihong Wang664.81
Bin Wang790181.18