Results 11 to 20 of about 4,751,671 (372)
A technique for parallel query optimization using MapReduce framework and a semantic-based clustering method. [PDF]
PeerJ Comput Sci, 2021 Query optimization is the process of identifying the best Query Execution Plan (QEP). The query optimizer produces a close to optimal QEP for the given queries based on the minimum resource usage.
Azhir E +4 more
europepmc +3 more sources
Query Optimization for Distributed Spatio-Temporal Sensing Data Processing. [PDF]
Sensors (Basel), 2022 The unprecedented development of Internet of Things (IoT) technology produces humongous amounts of spatio-temporal sensing data with various geometry types.
Li X, Yu H, Yuan L, Qin X.
europepmc +2 more sources
Graph Query Processing Technology Based on Data Warehouse [PDF]
Jisuanji gongcheng, 2023 The maturity of technologies such as vectorization provides an opportunity to realize graph queries based on a data warehouse.However, the existing system does not consider the characteristics of columnar storage and queries and fails to efficiently ...
Jiading GUO, Peng WANG
doaj +1 more source
Dense Distinct Query for End-to-End Object Detection [PDF]
Computer Vision and Pattern Recognition, 2023 One-to-one label assignment in object detection has successfully obviated the need for non-maximum suppression (NMS) as postprocessing and makes the pipeline end-to-end.
Shilong Zhang +7 more
semanticscholar +1 more source
COMPASS: Online Sketch-based Query Optimization for In-Memory Databases
SIGMOD Conference, 2021 Cost-based query optimization remains a critical task in relational databases even after decades of research and industrial development. Query optimizers rely on a large range of statistical synopses for accurate cardinality estimation. As the complexity
Yesdaulet Izenov +3 more
semanticscholar +1 more source
DN-DETR: Accelerate DETR Training by Introducing Query DeNoising [PDF]
Computer Vision and Pattern Recognition, 2022 We present in this paper a novel denoising training method to speedup DETR (DEtection TRansformer) training and offer a deepened understanding of the slow convergence issue of DETR-like methods.
Feng Li +5 more
semanticscholar +1 more source
Algebraic optimization of recursive queries [PDF]
, 1992 Over the past few years, much attention has been paid to deductive databases. They offer a logic-based interface, and allow formulation of complex recursive queries.
Apers, Peter M.G. +2 more
core +11 more sources
Twig Query Optimization Based on Partial Evaluation [PDF]
Jisuanji gongcheng, 2016 TreeMatch algorithm is widely considered to be an effective Twig query algorithm.According to the disadvantage of TreeMatch algorithm’s repeated analysis on Twig pattern,partial evaluation technology in the field of compilation is applied,and a Twig ...
GAO Wanchen,LIAO Husheng,SU Hang
doaj +1 more source
Optimization of correlate subquery based on distributed database
Xibei Gongye Daxue Xuebao, 2021 Subquery is widely used in database. It can be divided into related subquery and non-related subquery according to whether it is dependent on the table of the parent query.
doaj +1 more source
Query Optimization in an OODBMS [PDF]
, 1993 It is clearly crucial for the success of object—oriented databases to find efficient implementations that improve on the performance of relational systems, rather than being powerful in terms of modeling and features, but just too slow to be used. This paper describes the mapping of COCOON to DASDBS, a nested relational database kernel system, as an ...
Rich, Christian, Scholl, Marc H.
openaire +2 more sources