Efficient Route Query Processing with Arbitrary Order Constraints Providing Optimal Solution
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 5
Abstract
The optimal route query finds the shortest path starting from the query point from a given set of spatial points DS. These points are associated with some categorical information e.g., restaurant, pub, etc.,. This covers a user-specified set of categories(eg., beach, park and hotel). This can also be specified as partial order constraint between different categories eg., a ATM must be visited before hotel. In the previous work, it focused on where the query contains the total order of all categories to be visited(eg., park-ATM-hotel).The only known solution reduces the problem to multiple, total-order optimal route queries is done without such a total order. A naive approach is used in this paper,using this naive approach a significant amount of repeated computationsis done. Hence,this approach is not scalable to large datasets. A novel solution to the general optimal route query is been proposed in this paper. This is based on two different methodologies namely backward search and forward search. This proposed method can be adapted to answer a variantamount of optimal route queries. In this the route only needs to cover a subset of the given categories. Extensive experiments use both real and synthetic datasets,hence the proposed solution are efficient and practical.
Authors and Affiliations
G. Suganya
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