Results 11 to 20 of about 2,480 (240)
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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A Query Understanding Framework for Earth Data Discovery
Applied Sciences, 2020 One longstanding complication with Earth data discovery involves understanding a user’s search intent from the input query. Most of the geospatial data portals use keyword-based match to search data.
Yun Li +4 more
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Temporally relevant parallel top-k spatial keyword search
Journal of Spatial Information Science, 2022 New spatio-textual indexing methods are needed to support efficient search and update of the massive amounts of spatially referenced text being generated.
Suprio Ray, Bradford Nickerson
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The Flexible Group Spatial Keyword Query [PDF]
, 2017 We present a new class of service for location based social networks, called the Flexible Group Spatial Keyword Query, which enables a group of users to collectively find a point of interest (POI) that optimizes an aggregate cost function combining both spatial distances and keyword similarities.
Sabbir Ahmad +5 more
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An Efficient Top-
IEEE Access, 2019 Existing spatial keyword query processing models mainly consider the spatial proximity and text relevancy between spatial objects and spatial keyword query, which usually makes the top-k answer objects are similar to each other.
Xiaoyan Zhang +4 more
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THE SEMANTIC RETRIEVAL OF SPATIAL DATA SERVICE BASED ON ONTOLOGY IN SIG [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 The research of SIG (Spatial Information Grid) mainly solves the problem of how to connect different computing resources, so that users can use all the resources in the Grid transparently and seamlessly.
S. Sun, S. Sun, D. Liu, G. Li, W. Yu
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Efficiently Processing Spatial and Keyword Queries in Indoor Venues [PDF]
IEEE Transactions on Knowledge and Data Engineering, 2021 Due to the growing popularity of indoor location-based services, indoor data management has received significant research attention in the past few years. However, we observe that the existing indexing and query processing techniques for the indoor space do not fully exploit the properties of the indoor space.
Zhou Shao +4 more
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SMPKR: Search Engine for Internet of Things
IEEE Access, 2019 The Internet of Things (IoT) has become the infrastructure to widely support ubiquitous applications. Due to the highly dynamic context setting, IoT search engines have attracted increasing attention from both industrial and academic field to crawl and ...
Jine Tang +3 more
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