Results 21 to 30 of about 5,936,360 (329)

KeyFinder: An Efficient Minimal Keys Finding Algorithm For Relational Databases

open access: yesInteligencia Artificial, 2021
In relational databases, it is essential to know all minimal keys since the concept of database normaliza- tion is based on keys and functional dependencies of a relation schema.
Moussa Demba
doaj   +3 more sources

Anomalies Detection in Software by Conceptual Learning From Normal Executions

open access: yesIEEE Access, 2020
Could we detect anomalies during the run-time of a program by learning from the analysis of its previous traces for normally completed executions? In this paper we create a featured data set from program traces at run time, either during its regular life,
Ahmad Qadeib Alban   +3 more
doaj   +1 more source

Financial relationships and dependencies in Czech secondary school mathematics textbooks

open access: yesScientia in Educatione, 2023
This article analyses and compares four sets of Czech secondary school mathematics textbooks from the perspective of financial relationships and dependencies.
Petr Čechák
doaj   +1 more source

Propagating functional dependencies with conditions [PDF]

open access: yes, 2008
The dependency propagation problem is to determine, given a view defined on data sources and a set of dependencies on the sources, whether another dependency is guaranteed to hold on the view.
Fan, Wenfei   +4 more
core   +1 more source

Finding the Transitive Closure of Functional Dependencies using Strategic Port Graph Rewriting [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
We present a new approach to the logical design of relational databases, based on strategic port graph rewriting. We show how to model relational schemata as attributed port graphs and provide port graph rewriting rules to perform computations on ...
János Varga
doaj   +1 more source

Discovering Approximate Functional Dependencies using Smoothed Mutual Information

open access: yesKnowledge Discovery and Data Mining, 2020
We consider the task of discovering the top-K reliable approximate functional dependencies X -> Y from high dimensional data. While naively maximizing mutual information involving high dimensional entropies over empirical data is subject to false ...
Frédéric Pennerath   +2 more
semanticscholar   +1 more source

Functional Dependence in Strategic Games (extended abstract) [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
The paper studies properties of functional dependencies between strategies of players in Nash equilibria of multi-player strategic games. The main focus is on the properties of functional dependencies in the context of a fixed dependency graph for pay ...
Kristine Harjes, Pavel Naumov
doaj   +1 more source

Dependent Functional Data [PDF]

open access: yesISRN Probability and Statistics, 2012
This paper reviews recent research on dependent functional data. After providing an introduction to functional data analysis, we focus on two types of dependent functional data structures: time series of curves and spatially distributed curves. We review statistical models, inferential methodology, and possible extensions.
openaire   +1 more source

Discovering Reliable Approximate Functional Dependencies [PDF]

open access: yesKnowledge Discovery and Data Mining, 2017
Given a database and a target attribute of interest, how can we tell whether there exists a functional, or approximately functional dependence of the target on any set of other attributes in the data?
Panagiotis Mandros   +2 more
semanticscholar   +1 more source

Functional Dependence and Analytic Functions [PDF]

open access: yesCanadian Mathematical Bulletin, 1979
AbstractWithout appealing to the Cauchy theorem or its corollaries, it is proved that the real and imaginary parts of a non-constant complex-valued analytic function of several complex variables are functionally independent. This unifies and generalizes some results sporadically treated in standard treatises on function theory.
openaire   +2 more sources

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