Results 21 to 30 of about 157,946 (258)
Time‐specific encrypted range query with minimum leakage disclosure
IET Information Security, 2021 A time‐specific encrypted range query scheme that has the following properties is proposed. (1) The proposed scheme has trapdoor privacy and data privacy so that a semi‐honest cloud is not able to get any useful information from given ciphertexts and ...
Ozgur Oksuz
doaj +1 more source
STE-based encrypted relational database scheme with reduced leakages
网络与信息安全学报Recently, the concept of partially precomputed indexing for Structured query language (SQL) join (PpSj), which was predicated on structured encryption, has been introduced.
SU Yuchen, MA Changshe
doaj +3 more sources
Distributed Similarity Queries in Metric Spaces
Data Science and Engineering, 2019 Similarity queries, including range queries and k nearest neighbor (kNN) queries, in metric spaces have applications in many areas such as multimedia retrieval, computational biology and location-based services.
Keyu Yang +5 more
doaj +1 more source
Set-Difference Range Queries [PDF]
CoRR, 2013 We introduce the problem of performing set-difference range queries, where answers to queries are set-theoretic symmetric differences between sets of items in two geometric ranges. We describe a general framework for answering such queries based on a novel use of data-streaming sketches we call signed symmetric-difference sketches.
David Eppstein +2 more
openaire +2 more sources
Authentication of moving range queries [PDF]
Proceedings of the 21st ACM international conference on Information and knowledge management, 2012 A moving range query continuously reports the query result (e.g., restaurants) that are within radius $r$ from a moving query point (e.g., moving tourist). To minimize the communication cost with the mobile clients, a service provider that evaluates moving range queries also returns a safe region that bounds the validity of query results.
Duncan Yung, Eric Lo 0001, Man Lung Yiu
openaire +1 more source
Improved Range Minimum Queries
Journal of Discrete Algorithms, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Héctor Ferrada, Gonzalo Navarro 0001
openaire +2 more sources
Query Optimization for Distributed Spatio-Temporal Sensing Data Processing
Sensors, 2022 The unprecedented development of Internet of Things (IoT) technology produces humongous amounts of spatio-temporal sensing data with various geometry types.
Xin Li +3 more
doaj +1 more source
Accelerating spatial range queries [PDF]
Proceedings of the 16th International Conference on Extending Database Technology, 2013 It is increasingly common for domain scientists to use computational tools to build and simulate spatial models of the phenomena they are studying. The spatial models they build are more and more detailed as well as dense and are consequently difficult to manage with today's tools. A crucial problem when analyzing spatial models of increasing detail is
Alexandros Stougiannis +3 more
openaire +1 more source
A Large Scale Code Resolution Service Network in the Internet of Things
Sensors, 2012 In the Internet of Things a code resolution service provides a discovery mechanism for a requester to obtain the information resources associated with a particular product code immediately.
Xiangzhan Yu +3 more
doaj +1 more source
Range Entropy Queries and Partitioning.
CoRR, 2023 Data partitioning that maximizes or minimizes Shannon entropy is a crucial subroutine in data compression, columnar storage, and cardinality estimation algorithms. These partition algorithms can be accelerated if we have a data structure to find the entropy in different subsets of data when the algorithm needs to decide what block to construct.
Krishnan, Sanjay, Sintos, Stavros
openaire +3 more sources