Results 31 to 40 of about 5,206,986 (370)
Nest and Unnest Operators in Nested Relations
Data Science Journal, 2008 By distinguishing nested attributes as Decomposable and Non-Decomposable, it is proved that for all nested relations, unnesting and then renesting on the same attribute yields the original relation subject only to the elimination of duplicate data ...
Georgia Garani
doaj +1 more source
Getting Along with Relational Databases
Journal of the Text Encoding Initiative, 2021 Both relational databases and XML have strengths and weaknesses as data storage and modelling systems. Most researchers working with Humanities historical and literary data would argue for the superiority of XML, since it allows unlimited nesting, linking, and complexity.
openaire +4 more sources
Distant supervision for relation extraction without labeled data
Annual Meeting of the Association for Computational Linguistics, 2009 Modern models of relation extraction for tasks like ACE are based on supervised learning of relations from small hand-labeled corpora. We investigate an alternative paradigm that does not require labeled corpora, avoiding the domain dependence of ACE ...
Mike D. Mintz +3 more
semanticscholar +1 more source
Measuring accessibility: A Big Data perspective on Uber service waiting times [PDF]
RAE: Revista de Administração de Empresas, 2019 This study aims to relate information about the waiting times of ride-sourcing services, with specific reference to Uber, using socioeconomic variables from São Paulo, Brazil.
André Insardi, Rodolfo Oliveira Lorenzo
doaj +3 more sources
Automatic Conversion of Relational Databases into Ontologies: A Comparative Analysis of Protégé Plug-ins Performances [PDF]
International Journal of Web and Semantic Technology (IJWesT),
2016, 2016 Constructing ontologies from relational databases is an active research topic in the Semantic Web domain. While conceptual mapping rules/principles of relational databases and ontology structures are being proposed, several software modules or plug-ins are being developed to enable the automatic conversion of relational databases into ontologies ...
arxiv +1 more source
The relational database system of KM3NeT [PDF]
AIP Conference Proceedings, 2014 The KM3NeT Collaboration is building a new generation of neutrino telescopes in the Mediterranean Sea. For these telescopes, a relational database is designed and implemented for several purposes, such as the centralised management of accounts, the storage of all documentation about components and the status of the detector and information about slow ...
Arnauld Albert, BOZZA, Cristiano
openaire +5 more sources
HYPERTENSION, 2014 Home blood pressure monitoring is useful in detecting white-coat and masked hypertension and is recommended for patients with suspected or treated hypertension.
G. Stergiou +12 more
semanticscholar +1 more source
SoilTemp: A global database of near‐surface temperature
Global Change Biology, 2020 Current analyses and predictions of spatially explicit patterns and processes in ecology most often rely on climate data interpolated from standardized weather stations.
J. Lembrechts +171 more
semanticscholar +1 more source
Tạp chí Khoa họcThe paper presents a watermarked scheme based on the most significant bit for public copyright protection for relational databases. A Watermark scheme could openly prove data copyright as often as desired.
Luu Thi Bich Huong
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AKAP12 Expression in HER2-positive Breast Cancer and Its Clinical Significance
Zhongliu Fangzhi Yanjiu, 2020 Objective To investigate the expression of AKAP12 in HER2-positive breast cancer and its relation with clinicopathological factors and clinical significance.
CHENG Qian +5 more
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