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A blockchain index structure based on subchain query

open access: yesJournal of Cloud Computing: Advances, Systems and Applications, 2021
Blockchain technology has the characteristics of decentralization and tamper resistance, which can store data safely and reduce the cost of trust effectively.
Xiaogang Xing   +4 more
doaj   +2 more sources

Accelerating Content-Based Image Retrieval via GPU-Adaptive Index Structure [PDF]

open access: yesThe Scientific World Journal, 2014
A tremendous amount of work has been conducted in content-based image retrieval (CBIR) on designing effective index structure to accelerate the retrieval process.
Lei Zhu
doaj   +2 more sources

3D HUMAN MOTION RETRIEVAL BASED ON HUMAN HIERARCHICAL INDEX STRUCTURE [PDF]

open access: yesBiology of Sport, 2013
With the development and wide application of motion capture technology, the captured motion data sets are becoming larger and larger. For this reason, an efficient retrieval method for the motion database is very important.
Qiang Zhang, Xiaocui Guo
doaj   +2 more sources

RPA: a memory-efficient metric-space recall@R ANNS index

open access: yesShenzhen Daxue xuebao. Ligong ban, 2023
Approximate nearest neighbor search (ANNS) for high dimensional data has received extensive research efforts. Many existing ANNS methods in metric spaces are essentially based on the permutation of pivots, or pre-selected reference points, which are ...
JIANG Runben, CHEN Jiaying, MAO Rui
doaj   +1 more source

Analysis and Optimization of Persistent Memory Index Structures’ Write Amplification

open access: yesIEEE Access, 2021
Using persistent memory (PM) for an in-memory database (IMDB) system significantly extends data processing capacity and reduces service downtime for the recovery process in case of system failure.
Youngjoo Woo   +3 more
doaj   +1 more source

A Hybrid Approach Combining R*-Tree and k-d Trees to Improve Linked Open Data Query Performance

open access: yesApplied Sciences, 2021
Semantic Web has recently gained traction with the use of Linked Open Data (LOD) on the Web. Although numerous state-of-the-art methodologies, standards, and technologies are applicable to the LOD cloud, many issues persist.
Yuxiang Sun   +3 more
doaj   +1 more source

ESL: A High-Performance Skiplist with Express Lane

open access: yesApplied Sciences, 2023
With the increasing capacity and cost-efficiency of DRAM in multi-core environments, in-memory databases have emerged as fundamental solutions for delivering high performance.
Yedam Na   +4 more
doaj   +1 more source

CrowdSJ: Skyline-Join Query Processing of Incomplete Datasets With Crowdsourcing

open access: yesIEEE Access, 2021
Skyline query is very useful in decision-making systems, WSN and so on. As a variation of skyline query, skyline-join query can return the results from multiple datasets. However, incomplete datasets are a frequent phenomenon due to the widespread use of
Linlin Ding   +4 more
doaj   +1 more source

Converting Concurrent Range Index Structure to Range Index Structure for Disaggregated Memory

open access: yesApplied Sciences, 2023
In this work, we propose the Spread approach, which tailors a concurrent range index structure to a range index structure for disaggregated memory connected via RDMA (Remote Direct Memory Access).
Bonmoo Koo   +3 more
doaj   +1 more source

FITing-Tree: A Data-aware Index Structure [PDF]

open access: yesSIGMOD Conference, 2018
Index structures are one of the most important tools that DBAs leverage to improve the performance of analytics and transactional workloads. However, building several indexes over large datasets can often become prohibitive and consume valuable system ...
Alex Galakatos   +4 more
semanticscholar   +1 more source

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