Continuous visible k nearest neighbor query on moving objects
نویسندگان
چکیده
منابع مشابه
Continuous visible k nearest neighbor query on moving objects
A visible k nearest neighbor (Vk NN) query retrieves k objects that are visible and nearest to the query object, where “visible”means that there is no obstacle between an object and the query object. Existing studies on the Vk NN query have focused on static data objects. In this paper we investigate how to process the query on moving objects continuously. We queries. We exploit spatial proximi...
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Continuous K nearest neighbor queries (C-KNN) on moving objects retrieve the K nearest neighbors of all points along a query trajectory. In existing methods, the cost of retrieving the exact C-KNN data set is expensive, particularly in highly dynamic spatio-temporal applications. The cost includes the location updates of the moving objects when the velocities change over time and the number of ...
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ژورنال
عنوان ژورنال: Information Systems
سال: 2014
ISSN: 0306-4379
DOI: 10.1016/j.is.2014.02.003