Results 11 to 20 of about 2,632,134 (172)
Efficient Processing of Spatial Keyword Queries [PDF]
, 2015 Massive amount of data that are geo-tagged and associated with text information are being generated at an unprecedented scale in many emerging applications such as location based services and social networks. Due to their importance, a large body of work has focused on efficiently computing various spatial keyword queries.
Zhang, Chengyuan
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Spatial Keyword Query Processing in the Internet of Vehicles [PDF]
, 2017 This paper takes the first step to address the issue of processing Spatial Keyword Queries (SKQ) in the Internet of Vehicles (IoV) environment. As a key technique to obtain location-aware information, the Spatial Keyword Query (SKQ) is proposed. It can search qualified objects based on both keywords and location information.
Yanhong Li +4 more
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Processing spatial keyword query as a top-k aggregation query [PDF]
Proceedings of the 37th international ACM SIGIR conference on Research & development in information retrieval, 2014 We examine the spatial keyword search problem to retrieve objects of interest that are ranked based on both their spatial proximity to the query location as well as the textual relevance of the object's keywords. Existing solutions for the problem are based on either using a combination of textual and spatial indexes or using specialized hybrid indexes
Dongxiang Zhang +2 more
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On Nearby-Fit Spatial Keyword Queries [PDF]
IEEE Transactions on Knowledge and Data Engineering, 2020 Geo-textual data is ubiquitous nowadays, where each object has a location and is associated with some keywords. Many types of queries based on geo-textual data, termed as spatial keyword queries , have been proposed, and are to find optimal object(s) in terms of both its (their) location(s) and keywords.
Victor Junqiu Wei +3 more
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, 2022 Current spatial-keyword publish/subscribe systems need to handle spatial-keyword skyline queries over geo-textual streams to continuously obtain good results.
Wang, Yue +7 more
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Collective spatial keyword querying [PDF]
Proceedings of the 2011 ACM SIGMOD International Conference on Management of data, 2011 With the proliferation of geo-positioning and geo-tagging, spatial web objects that possess both a geographical location and a textual description are gaining in prevalence, and spatial keyword queries that exploit both location and textual description are gaining in prominence.
Xin Cao 0001 +3 more
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Top-k Exploration of Query Candidates for Efficient Keyword Search on Graph-Shaped (RDF) Data [PDF]
, 2009 Tran DT, Wang H, Rudolph S, Cimiano P. Top-k Exploration of Query Candidates for Efficient Keyword Search on Graph-Shaped (RDF) Data. In: Ioannidis YE, Lee DL, Ng RT, eds.
Wang, Haofen +10 more
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Query processing of spatial objects: Complexity versus Redundancy [PDF]
, 1993 The management of complex spatial objects in applications, such as geography and cartography, imposes stringent new requirements on spatial database systems, in particular on efficient query processing. As shown before, the performance of spatial query
Kriegel, Hans-Peter +3 more
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Query processing of geometric objects with free form boundarie sin spatial databases [PDF]
, 1993 The increasing demand for the use of database systems as an integrating factor in CAD/CAM applications has necessitated the development of database systems with appropriate modelling and retrieval capabilities.
Kriegel, Hans-Peter +3 more
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On the Complexity of Query Result Diversification [PDF]
, 2013 Query result diversification is a bi-criteria optimization problem for ranking query results. Given a database D, a query Q, and a positive integer k, it is to find a set of k tuples from Q(D) such that the tuples are as relevant as possible to the query,
Deng, Ting +3 more
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