Results 21 to 30 of about 36,093 (262)
Mining Relational Databases [PDF]
In this paper, we propose a classification system to induce an intentional definition of a relation from examples, when background knowledge is stored in a relational database composed of several tables and views. Refinement operators have been defined to integrate in a uniform way different induction tools learning numeric and symbolic constraints ...
Frédéric Moal +2 more
openaire +1 more source
Background The objective of this research is to compare the relational and non-relational (NoSQL) database systems approaches in order to store, recover, query and persist standardized medical information in the form of ISO/EN 13606 normalized Electronic
Ricardo Sánchez-de-Madariaga +6 more
doaj +1 more source
Oracle 19c, SQL Server 2019, Postgresql 12 and MySQL 8 database systems comparison
This article presents a comparative analysis of four popular database technologies. Commercial Oracle Database and SQL Server systems are compared with open source database management systems: PostgreSQL and MySQL.
Arkadiusz Solarz, Tomasz Szymczyk
doaj +1 more source
Beyond relational databases [PDF]
There is more to data access than SQL.
openaire +1 more source
The relational database system of KM3NeT
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 ...
Albert Arnauld, Bozza Cristiano
doaj +1 more source
Structuring, Recording, and Analyzing Historical Networks in the China Biographical Database
The China Biographical Database (CBDB) is a relational database of over 450,000 individuals from pre-modern Chinese history. CBDB is distinctive as a prosopographical database in that it allows users to generate kinship and social networks for ...
Michael Fuller, Hongsu Wang
doaj +1 more source
RELATIONAL ASPECTS OF RELATIONAL DATABASE DEPENDENCIES [PDF]
Summary: This paper presents a relational treatment of inference rules for functional and multivalued dependencies in relational databases, to show the soundness and the completeness of the inference rules in Dedekind categories, which also cover the fuzzy case.
Okuma, Hitomi, Kawahara, Yasuo
openaire +2 more sources
Predicting Customers Churn in a Relational Database [PDF]
This paper explores how two main classical classification models work and generate predictions through a commercial solution of relational database management system (Microsoft SQL Server 2012). The aim of the paper is to accurately predict churn among a
Catalin CIMPOERU, Anca Ioana ANDREESCU
doaj +1 more source
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed +6 more
wiley +1 more source
Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier +17 more
wiley +1 more source

