Results 71 to 80 of about 663,961 (238)

Translating a first-order modal language to relational algebra [PDF]

open access: yesarXiv, 2007
This paper is about Kripke structures that are inside a relational database and queried with a modal language. At first the modal language that is used is introduced, followed by a definition of the database and relational algebra. Based on these definitions two things are presented: a mapping from components of the modal structure to a relational ...
arxiv  

A relational database for bibliometric analysis [PDF]

open access: yesJournal of Informetrics, 2010
Abstract In this article a relational database schema for a bibliometric database is developed. After the introduction explaining the motivation to use relational databases in bibliometrics, an overview of the related literature is given. A review of typical bibliometric questions serves as an informal requirement analysis.
openaire   +4 more sources

An Interoperable Cartographic Database

open access: yesKartografija i Geoinformacije, 2007
The concept of producing a prototype of interoperable cartographic database is explored in this paper, including the possibilities of integration of different geospatial data into the database management system and their visualization on the Internet ...
Slobodanka Ključanin, Zdravko Galić
doaj  

Graph Transformation in Relational Databases

open access: yesElectronic Notes in Theoretical Computer Science, 2005
AbstractWe present a novel approach to implement a graph transformation engine based on standard relational database management systems (RDBMSs). The essence of the approach is to create database views for each rules and to handle pattern matching by inner join operations while negative application conditions by left outer join operations. Furthermore,
Varró, Gergely György   +2 more
openaire   +2 more sources

PURE: a Prompt-based framework with dynamic Update mechanism for educational Relation Extraction

open access: yesComplex & Intelligent Systems
Traditional education systems obscure the diverse interconnections inherent within subject knowledge, thus failing to meet the current demand for personalized and adaptive learning experiences.
Xiaohui Cui   +7 more
doaj   +1 more source

On Embeddings in Relational Databases [PDF]

open access: yesarXiv, 2020
We address the problem of learning a distributed representation of entities in a relational database using a low-dimensional embedding. Low-dimensional embeddings aim to encapsulate a concise vector representation for an underlying dataset with minimum loss of information.
arxiv  

Scalable Continual Top-k Keyword Search in Relational Databases [PDF]

open access: yesarXiv, 2011
Keyword search in relational databases has been widely studied in recent years because it does not require users neither to master a certain structured query language nor to know the complex underlying database schemas. Most of existing methods focus on answering snapshot keyword queries in static databases.
arxiv  

Generating EPICS IOC Databases from a Relational Database - a Different Approach [PDF]

open access: yeseConf C011127 (2001) WEAP071, 2001
The EPICS based control system of the ISAC radioactive beam facility uses the CapFast schematic editor to construct the IOC function-block databases. This allows a self-documenting graphical representation of the IOC software using a hierarchical, object-like software structure with reusable components.
arxiv  

Characterization of a typology of exercises for the teaching of the Model Entity/Relationship

open access: yesRevista MENDIVE, 2007
The creation process of a database crosses through a series of stages; one of them is the design. Inside this stage the data models play an important role.
Manuel Pereira Rosa
doaj  

Multilevel Package Identification Scheme Based on RFID Code and Related Package Message

open access: yesInternational Journal of Distributed Sensor Networks, 2016
Radio Frequency Identification (RFID) is one of the key areas of the internet of things (IoT) and widely used in the fields of target identification, security, tracking, anticounterfeiting, and so forth.
Yanghua Gao   +3 more
doaj   +1 more source

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