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An Overwiew of Evolution of Lexical Query Optimization Techniques
Труды Института системного программирования РАН, 2018 The presented overview is concerned with lexical query optimization and covers papers published in the last four decades. The paper consists of five sections.
N. A. Mendkovich, S. D. Kuznetsov
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LocationSpark: In-memory Distributed Spatial Query Processing and Optimization
Frontiers in Big Data, 2020 Due to the ubiquity of spatial data applications and the large amounts of spatial data that these applications generate and process, there is a pressing need for scalable spatial query processing.
Mingjie Tang +5 more
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AMaχoS—Abstract Machine for Xcerpt [PDF]
, 2006 Web query languages promise convenient and efficient access to Web data such as XML, RDF, or Topic Maps. Xcerpt is one such Web query language with strong emphasis on novel high-level constructs for effective and convenient query authoring ...
Bry, François +2 more
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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
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Jurnal ELTIKOM: Jurnal Teknik Elektro, Teknologi Informasi dan Komputer, 2022 Volume data yang sangat besar dari tim surveyor Perencanaan dan Pengendalian Penanganan Bencana(P3B) menciptakan masalah yang luas dan beragam sehingga dapat menghabiskan sumber daya sistem dan waktu pemrosesan yang terbilang lama.
Annisa Heparyanti Safitri +3 more
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Enhancing MongoDB query performance through index optimization [PDF]
E3S Web of ConferencesThis article delves into the critical aspect of enhancing query performance in MongoDB through meticulous index optimization. It begins with an introduction to MongoDB's unique document-oriented data storage approach and its inherent scalability, which ...
Nuriev Marat +4 more
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ReoptSMART: A Learning Query Plan Cache [PDF]
, 2008 The task of query optimization in modern relational database systems is important but can be computationally expensive. Parametric query optimization(PQO) has as its goal the prediction of optimal query execution plans based on historical results ...
Fan, Wei +5 more
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Neo: A Learned Query Optimizer
, 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
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SPARQL Query Optimization Based on Longest Property Path Filtering [PDF]
Jisuanji gongcheng, 2018 A large number of intermediate results during executing SPARQL query greatly affect the query efficiency.For this,a query optimization method with two phases is proposed.In the first phase,it divides a query that contains the same variable into a block ...
LIN Xiaoqing,ZHANG Fu,CHENG Jingwei
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Simulation Subsumption or Déjà vu on the Web [PDF]
, 2008 Simulation unification is a special kind of unification adapted to retrieving semi-structured data on the Web. This article introduces simulation subsumption, or containment, that is, query subsumption under simulation unification. Simulation subsumption
A. Klug +6 more
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