Results 31 to 40 of about 2,632,134 (172)
Query generation from multiple media examples [PDF]
, 2009 This paper exploits an unified media document representation called feature terms for query generation from multiple media examples, e.g. images. A feature term refers to a value interval of a media feature. A media document is therefore represented by a
Ren, R. +3 more
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cBiK: A Space-Efficient Data Structure for Spatial Keyword Queries
IEEE Access, 2020 A vast amount of geo-referenced data is being generated by mobile devices and other sensors increasing the importance of spatio-textual analyses on such data.
Carlos E. Sanjuan-Contreras +3 more
doaj +1 more source
A practical and secure multi-keyword search method over encrypted cloud data [PDF]
, 2013 Cloud computing technologies become more and more popular every year, as many organizations tend to outsource their data utilizing robust and fast services of clouds while lowering the cost of hardware ownership.
Erkay Savas +6 more
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ISPRS International Journal of Geo-Information, 2019 The tremendous advance in information technology has promoted the rapid development of location-based services (LBSs), which play an indispensable role in people’s daily lives. Compared with a traditional LBS based on Point-Of-Interest (POI), which
Xiangdian Zhu +3 more
doaj +1 more source
QDR-Tree: An Efficient Index Scheme for Complex Spatial Keyword Query [PDF]
, 2022 With the popularity of mobile devices and the development of geo-positioning technology, location-based services (LBS) attract much attention and top-k spatial keyword queries become increasingly complex. It is common to see that clients issue a query to
Gao, Xiaofeng +4 more
core +1 more source
Reverse spatial top-k keyword queries
The VLDB Journal, 2022 AbstractWe introduce the ReverseSpatial Top-kKeyword (RSK) query, which is defined as: given a query term q, an integer k and a neighborhood size find all the neighborhoods of that size where q is in the top-k most frequent terms among the social posts in those neighborhoods.
Pritom Ahmed +3 more
openaire +1 more source
Keyword Search on Spatial Network Databases: Road network indexing for efficient query processing [PDF]
, 2011 Given a spatial location and a set of keywords, a spatial keyword query locates spatio-textual objects based on both the location of the objects, and the textual relevance of the query keywords to the description of the objects.
Carlsson, Øystein Egeland
core +1 more source
Genomes as geography: using GIS technology to build interactive genome feature maps
BMC Bioinformatics, 2006 Background Many commonly used genome browsers display sequence annotations and related attributes as horizontal data tracks that can be toggled on and off according to user preferences.
Beard M Kate +3 more
doaj +1 more source
A novel multi-objective SKG-skyline algorithm integrating spatial keyword data transformation
Complex & Intelligent SystemsThe spatial keyword skyline query effectively addresses user preferences, particularly for location-based service applications. However, existing approaches primarily focus on single-object queries and remain unsuitable for group-based computations.
Xiaowei Cui +5 more
doaj +1 more source
ISPRS International Journal of Geo-Information, 2019 Current social-network-based and location-based-service applications need to handle continuous spatial approximate keyword queries over geo-textual streaming data of high density. The continuous query is a well-known expensive operation. The optimization
Ze Deng +6 more
doaj +1 more source