Preference-Based Top-k Spatial Keyword Queries
With proliferation of geo-positioning and geo-tagging, spatial keyword query has been an attractive and challenging topic that blooms various interesting applications in spatial databases. However, spatial keyword queries in those fields do not always satisfy users' requirements. One reason for those queries contain fuzzy linguistic labels that often embody users' preference, e.g., finding hotels near Zhongguancun with moderate price. In this paper, the authors define Preference based Top-k SpatialKeyword(PTkSK) query for coping with fuzzy labels. Existing works only consider on spatial locations, textual descriptions and overlook users' preference.