Results 11 to 20 of about 459,743 (229)
HI-Sky: Hash Index-Based Skyline Query Processing
Applied Sciences, 2020 The skyline query has recently attracted a considerable amount of research interest in several fields. The query conducts computations using the domination test, where “domination” means that a data point does not have a worse value than ...
Jong-Hyeok Choi +2 more
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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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Code Generation for Efficient Query Processing in Managed Runtimes [PDF]
, 2014 In this paper we examine opportunities arising from the conver-gence of two trends in data management: in-memory database sys-tems (IMDBs), which have received renewed attention following the availability of affordable, very large main memory systems ...
Bierman, Gavin M. +2 more
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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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Query processing of spatial objects: Complexity versus Redundancy [PDF]
, 1993 The management of complex spatial objects in applications, such as geography and cartography, imposes stringent new requirements on spatial database systems, in particular on efficient query processing. As shown before, the performance of spatial query
A. Braun +9 more
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Building Confidential and Efficient Query Services in the Cloud with RASP Data Perturbation [PDF]
, 2013 With the wide deployment of public cloud computing infrastructures, using clouds to host data query services has become an appealing solution for the advantages on scalability and cost-saving.
Chen, Keke, Guo, Shumin, Xu, Huiqi
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Processing SPARQL queries with regular expressions in RDF databases [PDF]
, 2019 Background: As the Resource Description Framework (RDF) data model is widely used for modeling and sharing a lot of online bioinformatics resources such as Uniprot (dev.isb-sib.ch/projects/uniprot-rdf) or Bio2RDF (bio2rdf.org), SPARQL - a W3C ...
Han, WS +6 more
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Aggregate Queries in Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2012 Recently as efficient processing of aggregate queries for fetching desired data from sensors has been recognized as a crucial part, in-network aggregate query processing techniques are studied intensively in wireless sensor networks.
Jeong-Joon Kim +4 more
doaj +1 more source
Spoken query processing for interactive information retrieval [PDF]
, 2002 It has long been recognised that interactivity improves the effectiveness of information retrieval systems. Speech is the most natural and interactive medium of communication and recent progress in speech recognition is making it possible to build ...
Barnett +19 more
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Pattern based processing of XPath queries [PDF]
, 2008 As the popularity of areas including document storage and distributed systems continues to grow, the demand for high performance XML databases is increasingly evident.
Marks, Gerard, Roantree, Mark
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