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Centroid-based KNN query in mobile service of LBS
NOMS 2018 - 2018 IEEE/IFIP Network Operations and Management Symposium, 2018With the increasing use of GPS-embedded mobile phone in location-based services (LBSs), people's location privacy is facing considerable challenge. Therefore, we propose a centroid- based method of K-nearest neighbor (KNN) query for LBSs. Unlike previous dummy-based approaches, our method sends a request to the LBS server that does not contain the ...
Huan Zhao, Meng Li
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(A)kNN Query Processing on the Cloud: A Survey
2017A k-nearest neighbor (kNN) query determines the k nearest points, using distance metrics, from a given location. An all k-nearest neighbor (AkNN) query constitutes a variation of a kNN query and retrieves the k nearest points for each point inside a database. Their main usage resonates in spatial databases and they consist the backbone of many location-
Nodarakis, Nikolaos +6 more
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Privacy Preserving kNN Spatial Query with Voronoi Neighbors
2019With the increased demand for outsourcing databases, there is a demand to enable secure and efficient communications. The concern regarding outsourcing data is mainly providing confidentiality and integrity to the data. This paper proposes a novel solution to answering kNN queries at the cloud server over encrypted data.
Eva Habeeb +2 more
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KNN Based Evolutionary Techniques for Updating Query Cost Models
2005Data integration system usually runs on unpredictable and volatile environments. Query cost model should be update with the changes of the environment. In this paper, we tackle this problem by evolving the cost model so that it can adapt to the environment change and keep up-to-date.
Zhining Liao +3 more
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Enhanced Continuous KNN Queries Using PINE on Road Networks
2006 1st International Conference on Digital Information Management, 2007Over the last decade, due to the rapid developments in information technology (IT), a new breed of information systems has appeared such as geographic information systems that introduced new challenges for researchers, developers and users. One of its applications is the car navigation system, which allows drivers to receive navigation instructions ...
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Efficient and Oblivious Query Processing for Range and kNN Queries (Extended Abstract)
2022 IEEE 38th International Conference on Data Engineering (ICDE), 2022Zhao Chang +4 more
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Answering range-based reverse kNN and why-not reverse kNN queries
Frontiers of Computer Science, 2019Zhefan Zhong, Xin Lin, Liang He
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Few-Shot Learning Meets Transformer: Unified Query-Support Transformers for Few-Shot Classification
IEEE Transactions on Circuits and Systems for Video Technology, 2023Sissi Wang, Xiao Wang, Bo Jiang
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