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DISTRIBUTED QUERY OPTIMIZATION [PDF]
Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2010 The need for the distributed systems has been determined by the type of business developed by companies with offices geographically distributed where the specific organizational structure promotes a decentralized business model.
Nicoleta IACOB
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A technique for parallel query optimization using MapReduce framework and a semantic-based clustering method [PDF]
PeerJ Computer Science, 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.
Elham Azhir +4 more
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Query Optimization for Distributed Spatio-Temporal Sensing Data Processing [PDF]
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
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Neo: A Learned Query Optimizer [PDF]
Proceedings of the VLDB Endowment, 2019 Query optimization is one of the most challenging problems in database systems. Despite the progress made over the past decades, query optimizers remain extremely complex components that require a great deal of hand-tuning for specific workloads and ...
Alizadeh, Mohammad +7 more
core +5 more sources
XPath Whole Query Optimization [PDF]
Proceedings of the VLDB Endowment, 2010 Previous work reports about SXSI, a fast XPath engine which executes tree automata over compressed XML indexes. Here, reasons are investigated why SXSI is so fast.
Maneth, Sebastian, Nguyen, Kim
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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
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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.
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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
Query Refinement into Information Retrieval Systems: An Overview
Journal of Information and Organizational Sciences, 2023 Query, expressing the user need and requirement, has an important role, in an information retrieval system, for reaching a high accuracy search. In this paper, we present an overview of the different refinement operations that the query may undergo, in ...
Mawloud Mosbah
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Optimal Divide and Query [PDF]
, 2011 This work has been partially supported by the Spanish Ministerio de Ciencia e Innovación under grant TIN2008-06622-C03-02 and by the Generalitat Valenciana under grant PROMETEO/2011/052.
Insa Cabrera, David +1 more
openaire +2 more sources