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A Personalized and Approximated Spatial Keyword Query Approach
IEEE Access, 2020 With the universal use of GPS and rapid increase of spatial Web objects, spatial keyword query has been widely used in Location-Based Services (LBS). Most of the existing spatial keyword query processing models only support location proximity and strict ...
Xiaoyan Zhang, Xiangfu Meng, Pan Li
exaly +3 more sources
ISPRS International Journal of Geo-Information, 2023 A new spatial keyword group query method is proposed in this paper to address the existing issue of user privacy leakage and exclusion of preferences in road networks. The proposed query method is based on the IGgram-tree index and minimum hash set.
Liping Zhang, Jing Li, Song Li
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Research on Time-Aware Group Query Method with Exclusion Keywords
ISPRS International Journal of Geo-Information, 2023 Aiming at the problem that the existing spatial keyword group query problem did not consider the query requirements with exclusion keywords and time attributes, a time-aware group query problem with exclusion keywords (TEGSKQ) is proposed for the first ...
Liping Zhang, Jing Li, Song Li
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MULTI-RESOLUTION REPRESENTATION USING GRAPH DATABASE [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Multi-resolution representation has always been an important and popular data source for many research and applications, such as navigation, land cover, map generation, media event forecasting, etc.
Y. Huang, E. Stefanakis
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Why Questions on Time-Aware Spatial Keyword Queries in Traffic Networks
IEEE Access, 2022 Time-aware spatial keyword queries in traffic networks ( $TSKQT$ ) aim to retrieve top- $k$ result objects based on the ranking score considering spatial proximity, textual relevance, and temporal similarity simultaneously. However, due to inappropriate
Xiao Jia +4 more
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Geo-Social Top-k and Skyline Keyword Queries on Road Networks
Sensors, 2020 The rapid growth of GPS-enabled mobile devices has popularized many location-based applications. Spatial keyword search which finds objects of interest by considering both spatial locations and textual descriptions has become very useful in these ...
Muhammad Attique +5 more
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Efficient processing of top-k frequent spatial keyword queries
Scientific Reports, 2022 The rapid popularization of high-speed mobile communication technology and the continuous development of mobile network devices have given spatial textual big data (STBD) new dimensions due to their ability to record geographical objects from multiple ...
Tao Xu +5 more
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Spatial Concept Query Based on Lattice-Tree
ISPRS International Journal of Geo-Information, 2022 As a basic method of spatial data operation, spatial keyword query can provide meaningful information to meet user demands by searching spatial textual datasets. How to accurately understand users’ intentions and efficiently retrieve results from spatial
Aopeng Xu +4 more
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Path–Based Continuous Spatial Keyword Queries
Complexity, 2022 In this paper, we study the path based continuous spatial keyword queries, which find the answer set continuously when the query point moves on a given path.
Fangshu Chen +5 more
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Top-K Collective Spatial Keyword Queries
IEEE Access, 2019 With the advent of a large number of spatial-textual data, collective spatial keyword queries have been widely studied in recent years. However, the collective spatial keyword query studied so far usually looks for only a set of objects. In addition, the
Danni Su +4 more
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