Location Based Nearest Keyword Search IJTSRD
It is common that the objects in a spatial database are associated with keyword to indicate their businesses/services/features. An interesting problem known as Closest Keywords search is to query objects, called nearest keyword search, which together cover a set of query keywords and have the minimum inter-objects distance. In recent years, I observe the increasing availability and importance of keyword rating in object evaluation for the better decision making. This motivates us to investigate a generic version of Closest Keywords search called Best Keyword Cover which considers inter-objects distance as well as the keyword rating of objects. The baseline algorithm is inspired by the methods of Closest Keywords search which is based on exhaustively combining objects from different query keywords to generate candidate keyword covers. When the number of query keywords increases, the performance of the baseline algorithm drops dramatically as a result of massive candidate keyword covers generated. To recover this drawback, this work proposes a much more scalable algorithm called keyword nearest neighbor expansion (keyword-NNE). Compared to the baseline algorithm, keyword-NNE algorithm significantly reduces the number of candidate keyword covers generated. The in-depth analysis and extensive experiments on real data sets have justified the superiority of our keyword-NNE algorithm.
By Miss Rachana V. Kurhekar | Prof. R. R. Shelke”Location Based Nearest Keyword Search”
Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017,
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