Results 61 to 70 of about 2,536,618 (345)

Relational database [PDF]

open access: yesData Processing, 1982
It is well known that the growth in demands from end users for new applications is outstripping the capability of data processing departments to implement the corresponding application programs. There are two complementary approaches to attacking this problem (and both approaches are needed): one is to put end users into direct touch with the ...
openaire   +3 more sources

Essential work, invisible workers: The role of digital curation in COVID‐19 Open Science

open access: yesJournal of the Association for Information Science and Technology, Volume 76, Issue 4, Page 703-717, April 2025.
Abstract In this paper, we examine the role digital curation practices and practitioners played in facilitating open science (OS) initiatives amid the COVID‐19 pandemic. In Summer 2023, we conducted a content analysis of available information regarding 50 OS initiatives that emerged—or substantially shifted their focus—between 2020 and 2022 to address ...
Irene V. Pasquetto   +2 more
wiley   +1 more source

Logical Querying of Relational Databases

open access: yesJournal of Economic Development, Environment and People, 2016
This paper aims to demonstrate the usefulness of formal logic and lambda calculus in database programming. After a short introduction in propositional and first order logic, we implement dynamically a small database and translate some SQL queries in ...
Luminita Pistol, Radu BUCEA-MANEA-TONIS
doaj  

ANSWERING GEOSPARQL QUERIES OVER RELATIONAL DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
In this paper we present the system Ontop-spatial that is able to answer GeoSPARQL queries on top of geospatial relational databases, performing on-the-fly GeoSPARQL-to-SQL translation using ontologies and mappings.
K. Bereta, G. Xiao, M. Koubarakis
doaj   +1 more source

Can boarding schools help looked after and vulnerable children improve academic attainment?

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The education of children in statutory care, or at the edge of care, is a serious concern for governments and policymakers. How to promote educational opportunities for these children can involve challenging and often contentious proposals. In this paper, we study one proposal put into practice in England: the provision to children who are in ...
David Murphy   +2 more
wiley   +1 more source

Logical Interpretation of Relational Databases [PDF]

open access: yes, 1981
The reformulation of data management type databases in a formal, logical calculus is described. Advantages of this logical form are to provide a framework for automatic inferencing on the database as well as a formal clarification of the databases ...
Lee, R.M.
core  

Schema Independent Relational Learning

open access: yes, 2017
Learning novel concepts and relations from relational databases is an important problem with many applications in database systems and machine learning. Relational learning algorithms learn the definition of a new relation in terms of existing relations ...
Abiteboul S.   +7 more
core   +1 more source

A systematic review of facilitators and barriers to school staff development projects using the Consolidated Framework for Implementation Research

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This paper is a systematic literature review (SLR) of research published between 2009 and 2022 that aims to identify facilitators and barriers to implementing staff development projects (SDPs) in schools in England. Twelve research papers fulfilled all inclusion criteria and were each evaluated as being at least medium‐quality research.
David Preston   +2 more
wiley   +1 more source

Semantic query in a relational database using a local ontology construction (Retracted)

open access: yesJournal of Energy in Southern Africa, 2012
Semantic Web refers to a Web of linked data in which data can be shared and reused, allowing more uses than the traditional ‘Web of documents’. However, most of the information on the Web is stored in relational databases and such databases cannot be
Saeed Sedighi, Reza Javidan
doaj   +4 more sources

Aggregation and Ordering in Factorised Databases

open access: yes, 2013
A common approach to data analysis involves understanding and manipulating succinct representations of data. In earlier work, we put forward a succinct representation system for relational data called factorised databases and reported on the main-memory ...
Bakibayev, Nurzhan   +3 more
core   +1 more source

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