Effective shortest travel-time path caching and estimating for location-based services
Effective shortest travel-time path caching and estimating for location-based services
复制标题
基于位置的服务的有效最短旅行时间路径缓存和估计
DOI:
10.1007/s11280-018-0549-2
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发表时间:
2018-04
期刊:
影响因子:
--
通讯作者:
Qing Li
中科院分区:
文献类型:
--
作者:
Detian Zhang;An Liu;Zhixu Li;Gangyong Jia;Fei Chen;Qing Li
For location-based services (LBS), the path with the shortest travel time is much more meaningful than the one with the shortest network distance, as it considers the live traffics in road networks. Usually, there are two ways for an LBS provider to provide the shortest travel-time paths for its queries, i.e., computing by itself or retrieving from external Web mapping services. However, both of these two ways are expensive, like costly computation and long latency. To accelerate shortest path query processing, we design an effective cache of shortest travel-time paths for LBS providers in this paper. Unlike the conventional path caching techniques, where the caches are only suitable for distance-based paths, our proposed cache is dynamic and can support travel-time-based paths. More importantly, a new cache operation, namely path join, is devised to estimate the path information for a query based on the cached paths, when the cache can not answer the query directly. Experimental results on a real Web mapping service and datasets confirm the effectiveness of the proposed techniques.
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DOI:
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发表时间:
1967
期刊:
--
影响因子:
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作者:
J. E. Falk;R Fletcher;M. J. D. Powell;Peter E Hart;Nils J Nilsson;Bertram Raphael
通讯作者:
J. E. Falk;R Fletcher;M. J. D. Powell;Peter E Hart;Nils J Nilsson;Bertram Raphael
DOI:
10.1007/978-3-642-15364-8_36
发表时间:
2010-08
期刊:
--
影响因子:
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作者:
Ugur Demiryurek;F. Kashani;C. Shahabi
通讯作者:
Ugur Demiryurek;F. Kashani;C. Shahabi
DOI:
10.1145/954339.954341
发表时间:
2003-12
期刊:
ACM Comput. Surv.
影响因子:
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作者:
Stefan Podlipnig;L. Böszörményi
通讯作者:
Stefan Podlipnig;L. Böszörményi
DOI:
10.1007/978-3-319-68783-4_29
发表时间:
2017-10
期刊:
--
影响因子:
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作者:
Detian Zhang;An Liu;Gangyong Jia;Fei Chen;Qing Li;Jian Li
通讯作者:
Detian Zhang;An Liu;Gangyong Jia;Fei Chen;Qing Li;Jian Li
DOI:
10.1016/j.jpdc.2012.02.007
发表时间:
2011-05
期刊:
2011 IEEE International Parallel & Distributed Processing Symposium
影响因子:
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作者:
Daniel Delling;A. Goldberg;A. Nowatzyk;Renato F. Werneck
通讯作者:
Daniel Delling;A. Goldberg;A. Nowatzyk;Renato F. Werneck