An Efficient and Effective Ranking On Spatial Data By Quality Preferences
Journal Title: International Journal of Research in Computer and Communication Technology - Year 2013, Vol 2, Issue 11
Abstract
A spatial database is database that is optimized to gather and query the information that is linked to objects in space and a spatial preference query objects are based on the qualities of their spatial area. A huge collection of geographic entities are managed by spatial database systems, which are apart from spatial attributes containing non spatial data. The predilection queries are studied in this paper which selects the best spatial location with reverence to the superiority of facilities in its spatial vicinity. For example, by using their spatial neighborhood a customer may want to rank the flats with respect to the exactness of their location which are defined after aggregating the characteristics of other features using an authentic estate agency database of flats. Such a locality concept can be specified by the user by using different functions. Within a given distance from the flat it can be a plain circular region. To allocate elevated weights to the features based on their immediacy to the flat is another inherent definition. In this paper, we propose suitable indexing techniques and officially define spatial preference queries and search algorithms for them. Optimized branch-and-bound solutions capable to special consideration were revealed by comprehensive assessment of our methods on both real and artificial data.
Authors and Affiliations
v. sreekanth reddy, s. j. saritha
Keywords
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