%0 Journal Article %A MENG Xiangfu %A WANG Dandan %A ZHANG Feng %T Overview of Spatial Keyword Queries %D 2021 %R 10.3778/j.issn.1002-8331.2105-0091 %J Computer Engineering and Applications %P 13-24 %V 57 %N 20 %X

In recent years, the scale of spatial-textual data with location and textual information has grown rapidly. Social data in social networks and transaction data in mobile Internet are both important sources of spatial-text data, which are characterized by massive, heterogeneous and multi-dimensional data. Spatial keyword query technology based on spatial-text data has been widely studied and applied at present. Given a query location ļ¼ˆrepresented by latitude and longitudeļ¼‰ and a group of query keywords, the spatial object closest to the query location and highly relevant to the query keyword is returned. The relevant query technologies of spatial-text data are reviewed, including query processing mode, index structure, semantic approximation query, query based on road network, query based on route planning, query based on social network, query based on influence constraint, etc.

%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2105-0091