Understanding data toward going to data science

MKM Nasution - Computer Science On-line Conference, 2022 - Springer
Data in terms of term have filled the daily activities of human life. This term becomes
important, when humans are increasingly dependent on technology called computers or …

Empirical evidence for the usefulness of Armstrong relations in the acquisition of meaningful functional dependencies

WD Langeveldt, S Link - Information Systems, 2010 - Elsevier
Armstrong relations satisfy precisely those data dependencies that are implied by a given
set of data dependencies. A common perception is that Armstrong relations are useful in the …

Semantic sampling of existing databases through informative Armstrong databases

F De Marchi, JM Petit - Information Systems, 2007 - Elsevier
Functional dependencies (FDs) and inclusion dependencies (INDs) convey most of data
semantics in relational databases and are very useful in practice since they generalize keys …

[PDF][PDF] Memahami data: Suatu pengantar

MK Nasution - Sains Data, 2021 - researchgate.net
Data dari sisi istilah telah mengisi aktivitas sehari-hari dari kehidupan manusia. Istilah ini
menjadi penting, ketika manusia semakin tergantung terhadap teknologi bernama komputer …

Analysis of existing databases at the logical level: the DBA companion project

F De Marchi, S Lopes, JM Petit, F Toumani - ACM Sigmod Record, 2003 - dl.acm.org
Whereas physical database tuning has received a lot of attention over the last decade,
logical database tuning seems to be under-studied. We have developed a project called …

Uniform probabilistic generation of relation instances satisfying a functional dependency

M Berens, J Biskup, M Preuß - Information Systems, 2022 - Elsevier
Software engineering includes the runtime evaluation of a prototype by experiments with
carefully selected sample inputs. For the development of software intended to operate on …

Can we probabilistically generate uniformly distributed relation instances efficiently?

J Biskup, M Preuß - Advances in Databases and Information Systems …, 2020 - Springer
Software engineering includes the runtime evaluation of a prototype by experiments with
carefully selected sample inputs. For the development of software intended to operate on …

Using data samples in validating data models

V Jovanovic, M Pavlić - International Journal of Knowledge …, 2012 - inderscienceonline.com
This paper presents a method for independent data model validation. The proposed
adaptation of the Sharp's method is more effective than normalisation alone and easy to …

[PDF][PDF] Découverte et représentation de dépendances dans les bases de données relationnelles.

F De Marchi - researchgate.net
Les dépendances fonctionnelles (DF) et les dépendances d'inclusion (DI) généralisent
respectivement la notion de clé et de clé étrangère, et véhiculent ainsi une grande part de la …

[PDF][PDF] Visualisation par l'exemple des dépendances dans les bases de données relationnelles

F De Marchi, JM Petit - Revue des Nouvelles Technologies de l' …, 2005 - academia.edu
Comprendre la sémantique des bases de données relationnelles existantes est important
pour de nombreuses applications. Cette sémantique est principalement véhiculée par les …