Server-side cache replacement algorithm based on spatiotemporal aging model for tiles(基于时空老化模型的服务端瓦片缓存置换算法)

随着网络地理信息服务(network geographic information service,NGIS)向云服务演进,客户端瓦片缓存架构的应用局限性逐渐体现。为提升瓦片服务的性能,在老化算法的基础上,综合分析了瓦片访问长短期流行度和瓦片大小特征,设计了基于时空老化模型的服务端瓦片缓存置换算法(server-side cache replacement algorithm based on spatiotemporal aging model for tiles,SSAT),并利用谷歌全球底图瓦片和瓦片访问日志进行了仿真实验。结果表明,在不同缓存空间下,SSAT的缓存命中率均高于传统算法,...

Full description

Bibliographic Details
Main Authors: TANGQiuyi(汤求毅), WANGChao(王超), DUZhenhong(杜震洪), ZHANGFeng(张丰), LIURenyi(刘仁义)
Format: Article
Language:zho
Published: Zhejiang University Press 2022-03-01
Series:Zhejiang Daxue xuebao. Lixue ban
Subjects:
Online Access:https://doi.org/10.3785/j.issn.1008-9497.2022.02.010