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Collective Keyword Query on a Spatial Knowledge Base
IEEE Transactions on Knowledge and Data Engineering, 2019The conventional works on spatial keyword queries for a knowledge base focus on finding a subtree to cover all the query keywords. The retrieved subtree is rooted at a place vertex, spatially close to a query location and compact in terms of the query keywords.
Xiongnan Jin, Sangjin Shin, Eunju Jo
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Multi-objective Spatial Keyword Query with Semantics
Lecture Notes in Computer Science, 2017Multi-objective spatial keyword query finds broad applications in map services nowadays. It aims to find a set of objects that can cover all query objectives and are reasonably distributed in spatial. However, existing approaches mainly take the coverage of query keywords into account, while leaving the semantics behind the textual data to be largely ...
Jiajie Xu, Chengfei Liu, Zhixu Li
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Time-aware spatial keyword cover query
Data and 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 ...
Wenyuan Liu
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Social-Spatial Group Queries with Keywords
ACM Transactions on Spatial Algorithms and Systems, 2021Social networks with location enabling technologies, also known as geo-social networks, allow users to share their location-specific activities and preferences through check-ins. A user in such a geo-social network can be attributed to an associated location (spatial), her preferences as keywords (textual), and the connectivity (social ...
Sajid Hasan Apon +3 more
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Spatial keyword query processing
Proceedings of the VLDB Endowment, 2013Geo-textual indices play an important role in spatial keyword querying. The existing geo-textual indices have not been compared systematically under the same experimental framework. This makes it difficult to determine which indexing technique best supports specific functionality.
Lisi Chen 0001 +3 more
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Scalable collective spatial keyword query
2015 31st IEEE International Conference on Data Engineering Workshops, 2015Spatial keyword queries have been widely studied recently, along with the emergence of large amount of geo-textual data. We consider the problem of scalable collective spatial keyword queries in this paper. Such query has a wide spectrum of applications; for instance, to find the best (nearest) area to organize a friend get-together where bars ...
Peijun He +3 more
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Interactive Spatial Keyword Querying with Semantics
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, 2017Conventional spatial keyword queries confront the difficulty of returning desired objects that are synonyms but morphologically different to query keywords. To overcome this flaw, this paper investigates the interactive spatial keyword querying with semantics.
Jiabao Sun +3 more
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Density-based spatial keyword querying
Future Generation Computer Systems, 2014With the rocket development of the Internet, WWW(World Wide Web), mobile computing and GPS (Global Positioning System) services, location-based services like Web GIS (Geographical Information System) portals are becoming more and more popular. Spatial keyword queries over GIS spatial data receive much more attention from both academic and industry ...
Li Zhang, Xiaoping Sun, Hai Zhuge
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2012
The web is increasingly being used by mobile users. In addition, it is increasingly becoming possible to accurately geo-position mobile users and web content. This development gives prominence to spatial web data management. Specifically, a spatial keyword query takes a user location and user-supplied keywords as arguments and returns web objects that ...
Xin Cao 0001 +7 more
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The web is increasingly being used by mobile users. In addition, it is increasingly becoming possible to accurately geo-position mobile users and web content. This development gives prominence to spatial web data management. Specifically, a spatial keyword query takes a user location and user-supplied keywords as arguments and returns web objects that ...
Xin Cao 0001 +7 more
openaire +1 more source