Results 21 to 30 of about 102,125 (260)
PIR with Compressed Queries and Amortized Query Processing [PDF]
2018 IEEE Symposium on Security and Privacy (SP), 2018 Private information retrieval (PIR) is a key building block in many privacy-preserving systems. Unfortunately, existing constructions remain very expensive. This paper introduces two techniques that make the computational variant of PIR (CPIR) more efficient in practice.
Sebastian Angel +3 more
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A Database Query Processing Model in Peer-To-Peer Network
Journal of Applied Sciences and Environmental Management, 2014 Peer-to-peer databases are becoming more prevalent on the internet for sharing and distributing applications, documents, files, and other digital media.
E E Ndueso, P O Asagba
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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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Skew in parallel query processing [PDF]
Proceedings of the 33rd ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, 2014 We study the problem of computing a conjunctive query q in parallel, using p of servers, on a large database. We consider algorithms with one round of communication, and study the complexity of the communication. We are especially interested in the case where the data is skewed, which is a major challenge for scalable parallel query processing.
Paul Beame, Paraschos Koutris, Dan Suciu
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INDEXING AND QUERY PROCESSING TECHNIQUES IN SPATIO-TEMPORAL DATA [PDF]
ICTACT Journal on Soft Computing, 2016 Indexing and query processing is an emerging research field in spatio - temporal data. Most of the real-time applications such as location based services, fleet management, traffic prediction and radio frequency identification and sensor networks are ...
A John, M Sugumaran, R S Rajesh
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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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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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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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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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