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Evaluating spatial-keyword queries on streaming data
Proceedings of the 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2018This paper provides an extensive experimental evaluation for different spatial-keyword index structures on streaming data. We extend existing snapshot spatial-keyword queries with the temporal dimension to effectively serve streaming data applications.
Abdulaziz Almaslukh, Amr Magdy 0001
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On Efficient Spatial Keyword Querying with Semantics
2016The fast development of GPS equipped devices has aroused widespread use of spatial keyword querying in location based services nowadays. Existing spatial keyword indexing and querying methodologies mainly focus on the spatial and textual similarities, while leaving the semantic understanding of keywords in spatial web objects and queries to be ignored.
Zhihu Qian +5 more
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Density Based Collective Spatial Keyword Query
2012 Eighth International Conference on Semantics, Knowledge and Grids, 2012Geographic objects with descriptive text are gaining in prevalence in many web services such as Google map. Spatial keyword query which combines both the location information and textual description stands out in recent years. Existing works mainly focus on finding top-k Nearest Neighbours where each node has to match the whole querying keywords.
Li Zhang, Xiaoping Sun, Hai Zhuge
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Authentication of Multiple-User Spatial Keywords Queries
2018 IEEE Third International Conference on Data Science in Cyberspace (DSC), 2018A top-k Multiple-user Spatial Keywords (MUSK) query takes a location and a set of keywords as arguments and returns the k best point of interests (POIs) that satisfy multiple-user's happiness. In the database outsourcing paradigm, data owner (DO) delegates the role of answering user's queries to a cloud service provider(CSP). Since either the CSP or an
Isaac Amankona Obiri +3 more
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Time-Aware Boolean Spatial Keyword Queries
IEEE Transactions on Knowledge and Data Engineering, 2017With advances in geo-positioning technologies and mobile internet, location-based services have attracted much attention, and spatial keyword queries are catching on fast. However, as far as we aware, no prior work considers the temporal information of geo-tagged objects.
Yunjun Gao
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2012
Spatial-textual content is becoming increasingly prevalent: — Location-based services from major commercial search engines. For example, in Google Maps many (geo-referenced) points of interest--e.g., clinics, stores, tourist attractions, hotels, entertainment services, public transport, and public services--are being associated with descriptive ...
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Spatial-textual content is becoming increasingly prevalent: — Location-based services from major commercial search engines. For example, in Google Maps many (geo-referenced) points of interest--e.g., clinics, stores, tourist attractions, hotels, entertainment services, public transport, and public services--are being associated with descriptive ...
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Moving spatial keyword queries [PDF]
ACM Transactions on Database Systems, 2013 Web users and content are increasingly being geo-positioned. This development gives prominence to spatial keyword queries, which involve both the locations and textual descriptions of content. We study the efficient processing of continuously moving top-kspatial keyword (MkSK) queries over spatial text data.
Dingming Wu 0001 +2 more
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Time-aware spatial keyword cover query
Data & Knowledge Engineering, 2019Abstract The existing spatial keyword cover query only considers the relevance of the text and the position, and ignores the temporal information of the geospatial objects. In this paper, we define a new query, time-aware spatial keyword cover query (TSKCQ), which takes into account the textual relevance, positional relevance, and temporal ...
Zijun Chen, Tingting Zhao, Wenyuan Liu
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Diversified Spatial Keyword Query on Topic Coverage
2018Spatial keyword queries are widely used in location based service systems nowadays to find the spatial web object people need. The returned objects usually are relevant to the query but not diversified each other. Motivated by this, we study the problem of diversified spatial keyword query on topic coverage, which returns k relevant objects close to ...
Zhihu Qian +3 more
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Answering Spatial Approximate Keyword Queries in Disks
2015Spatial approximate keyword queries consist of a spatial condition and a set of keywords as the fuzzy textual conditions, and they return objects labeled with a set of keywords similar to queried keywords while satisfying the spatial condition. Such queries enable users to find objects of interest in a spatial database, and make mismatches between user
Jinbao Wang +5 more
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