Ranking Spatial Data by Quality Preferences Using Spatial Techniques
Pooja Das, Akshay Baravkar, Saarah Sayyed · 2014
The quality of features of an object is ranked based on the spatial preference query. For example, using a Landed property agency database of flats for lease, a customer may want to rank the flats with respect to the correctness of their location, defined after aggregating the qualities of other features (e.g., restaurants, cafes, hospital, market, etc.) within their spatial neighborhood. Such a neighborhood concept can be specified by the user via various functions. It can be an overt circular region within a given distance from the flat. In this paper, we formally define spatial preference queries and propose suitable indexing techniques and search algorithms for them. Extensively evaluations of our methods on both real and synthetic data reveal that an optimized branch-and-bound solution is resourceful and strong with esteem to different parameters.