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题名:
A shortest path algorithm for moving objects in spatial network databases
作者: Yin Xiaolan ; Ding Zhiming ; Li Jing
关键词: Moving object
刊名: Progress in Natural Science
发表日期: 2008
卷: 18, 期:7, 页:893-899
收录类别: SCI
摘要: One of the most important kinds of queries in Spatial Network Databases (SNDB) to support location-based services (LBS) is the shortest path query. Given an object in a network, e.g. a location of a car on a road network, and a set of objects of interests, e.g. hotels,gas station, and car, the shortest path query returns the shortest path from the query object to interested objects. The studies of shortest path query have two kinds of ways, online processing and preprocessing. The studies of preprocessing suppose that the interest objects are static. This paper proposes a shortest path algorithm with a set of index structures to support the situation of moving objects. This algorithm can transform a dynamic problem to a static problem. In this paper we focus on road networks. However, our algorithms do not use any domain specific information, and therefore can be applied to any network. This algorithm’s complexity is O(klog2 i), and traditional Dijkstra’s complexity is O((i + k)2).
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iscas.ac.cn/handle/311060/605
Appears in Collections:基础软件国家工程研究中心_期刊论文

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Recommended Citation:
Yin Xiaolan,Ding Zhiming,Li Jing. A shortest path algorithm for moving objects in spatial network databases[J]. Progress in Natural Science,2008-01-01,18(7):893-899.
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