Results 31 to 40 of about 482,214 (330)
A SPATIOTEMPORAL AGGREGATION QUERY METHOD USING MULTI-THREAD PARALLEL TECHNIQUE BASED ON REGIONAL DIVISION [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Existing spatiotemporal database supports spatiotemporal aggregation query over massive moving objects datasets. Due to the large amounts of data and single-thread processing method, the query speed cannot meet the application requirements.
S. Liao, L. Chen, J. Li, W. Xiong, Q. Wu
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Geo-Socially Tenuous Group Query
Jisuanji kexue yu tansuo, 2021 In location-based social networks, it is important to find a specific group/community. Current research has focused on finding dense subgraphs of close relationships between groups. Compared with the dense group/subgraph, there are few studies on tenuous
LI Na, ZHU Huaijie, LIU Wei, YIN Jian
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RODA: A Fast Outlier Detection Algorithm Supporting Multi-Queries
IEEE Access, 2021 Outlier detection is an important task in the field of big data analysis. The technology has been extensively used in network security, sensor data analysis, public health and so on.
Xite Wang, Jiafan Li, Mei Bai, Qian Ma
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Building Confidential and Efficient Query Services in the Cloud with RASP Data Perturbation [PDF]
, 2013 With the wide deployment of public cloud computing infrastructures, using clouds to host data query services has become an appealing solution for the advantages on scalability and cost-saving.
Chen, Keke, Guo, Shumin, Xu, Huiqi
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Distributed Query Plan Generation Using Multiobjective Genetic Algorithm
The Scientific World Journal, 2014 A distributed query processing strategy, which is a key performance determinant in accessing distributed databases, aims to minimize the total query processing cost.
Shina Panicker, T. V. Vijay Kumar
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Efficient Continuous Subgraph Matching Scheme Based on Trie Indexing for Graph Stream Processing
Applied Sciences, 2023 With the expansion of the application range of big data and artificial intelligence technologies, graph data have been increasingly used to analyze the relationships among objects.
Dojin Choi +6 more
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International Journal of Distributed Sensor Networks, 2015 Database applications in wireless sensor networks very often demand data collection from sensor nodes of specific target regions. Design and development of spatial query expressions and energy-efficient query processing strategy are important issues for ...
Chong sok Lim +3 more
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Secure k-Nearest Neighbor Query over Encrypted Data in Outsourced Environments [PDF]
, 2013 For the past decade, query processing on relational data has been studied extensively, and many theoretical and practical solutions to query processing have been proposed under various scenarios.
Elmehdwi, Yousef +2 more
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CoRR, 2013 Motivated by cloud security concerns, there is an increasing interest in database systems that can store and support queries over encrypted data. A common architecture for such systems is to use a trusted component such as a cryptographic co-processor for query processing that is used to securely decrypt data and perform computations in plaintext.
Arvind Arasu, Raghav Kaushik
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Interactive Multiple-User Location-Based Keyword Queries on Road Networks
IEEE Access, 2018 As the use of smart mobile devices increases, users can connect and coordinate with local people or events that match their interests through geosocial networking applications.
Yong Wang +4 more
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