Top-k Spatial Preference Queries

A spatial preference query ranks objects based on the qualities of features in their spatial neighborhood. For example, consider a real estate agency office that holds a database with available flats for lease. A customer may want to rank the flats with respect to the appropriateness of their location, defined after aggregating the qualities of other features (e.g., restaurants, cafes, hospital, market, etc.) within a distance range from them. In this paper, we formally define spatial preference queries and propose appropriate indexing techniques and search algorithms for them. Our methods are experimentally evaluated for a wide range of problem settings.

• Type: Conference
• Year: 2007
• Where: ICDE
• Authors: Man Lung Yiu, Xiangyuan Dai, Nikos Mamoulis, Michail Vaitis
• Keywords: Database, ICDE 2007, Spatial Neighborhood, Spatial Preference Queries, Spatial Preference Query