منابع مشابه
Constrained Shortest Path Computation
This paper proposes and solves a-autonomy and k-stops shortest path problems in large spatial databases. Given a source s and a destination d, an aautonomy query retrieves a sequence of data points connecting s and d, such that the distance between any two consecutive points in the path is not greater than a. A k-stops query retrieves a sequence that contains exactly k intermediate data points....
متن کاملAcceleration of Shortest Path and Constrained Shortest Path Computation
We study acceleration methods for point-to-point shortest path and constrained shortest path computations in directed graphs, in particular in road and railroad networks. Our acceleration methods are allowed to use a preprocessing of the network data to create auxiliary information which is then used to speed-up shortest path queries. We focus on two methods based on Dijkstra’s algorithm for sh...
متن کاملPrivacy-Preserving Shortest Path Computation
Navigation is one of the most popular cloud computing services. But in virtually all cloud-based navigation systems, the client must reveal her location and destination to the cloud service provider in order to learn the fastest route. In this work, we present a cryptographic protocol for navigation on city streets that provides privacy for both the client’s location and the service provider’s ...
متن کاملOnline Shortest Path using LTI
Finding the shortest path is the one of the tedious problem on the live traffic. There are many existing applications are introduced to overcome this problem but still there is lack of finding the shortest path in live traffic. To overcome this several research has been done on finding shortest traffic especially using wireless sensor networks. The existing method collects the live traffic info...
متن کاملShortest Path Computation on Air Indexes
Shortest path computation is one of the most common queries in location-based services that involve transportation networks. Motivated by scalability challenges faced in the mobile network industry, we propose adopting the wireless broadcast model for such location-dependent applications. In this model the data are continuously transmitted on the air, while clients listen to the broadcast and p...
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ژورنال
عنوان ژورنال: IEEE Transactions on Knowledge and Data Engineering
سال: 2014
ISSN: 1041-4347
DOI: 10.1109/tkde.2013.176