Results 21 to 30 of about 57,558 (262)
KeyFinder: An Efficient Minimal Keys Finding Algorithm For Relational Databases
Inteligencia 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
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Financial relationships and dependencies in Czech secondary school mathematics textbooks
Scientia 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
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Soundness and Completeness of Inference Rules for New Vague Functional Dependencies [PDF]
MATEC Web of Conferences, 2019 In this paper we introduce a new definition of vague functional dependency based on application of appropriately chosen similarity measures. The definition is adjusted in order to be applicable to both, the imprecise and precise vague functional ...
Gušic´ Dženan
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Finding the Transitive Closure of Functional Dependencies using Strategic Port Graph Rewriting [PDF]
Electronic 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
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Functional Dependence and Analytic Functions [PDF]
Canadian 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.
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Functional Dependence in Strategic Games (extended abstract) [PDF]
Electronic 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
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Functional Dependencies with null Markers [PDF]
The Computer Journal, 2014 Functional dependencies are an integral part of database design. However, they are only defined when we exclude null markers. Yet we commonly use null markers in practice. To bridge this gap between theory and practice, researchers have proposed definitions of functional dependencies over relations with null markers.
Antonio Badia, Daniel Lemire
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Candidate Code Calculation of Derived Relation Based on Functional Dependencies [PDF]
Jisuanji gongcheng, 2016 Candidate code calculation based on the functional dependencies has important uses in many aspects,such as in the snapshot differential algorithms based on the strategy of compression,in the data consistency inspection,in the data inconsistency repairmen
LI Zhanghai,PAN Jiuhui
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Dependent Functional Data [PDF]
ISRN 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.
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An approach for testing the primeness of attributes in relational schemas [PDF]
Computer Science Journal of Moldova, 2009 In this paper there is proposed a method of partition the attributes of relation scheme in equivalence classes and in nonredundant equivalence classes. Several properties of these equivalence classes are proved. Their properties serve as the basis for an
Cotelea Vitalie
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