5 articles for “Functional Dependency”

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Research ArticleOpen accessPhrase in the titleMining Functional Dependency from Relational Databases Using Equivalent Classes and Minimal CoverJalal Atoum, Dojanah Bader, Arafat AwajanData Mining (DM) represents the process of extracting interesting and previously unknown knowledge from data. This study proposes a new algorithm called FD_Discover for discovering Functional Dependencies (FDs) from databases. This algorithm employs some concepts from relational databases design theory specifically the concepts of equivalences and the minimal cover. It has resulted in large improvement in performance in comparison with … …Journal of Computer Science, Vol. 4, Issue 6 · 30 Jun 2008 · 6,877 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsSWITCHING-ALGEBRAIC ANALYSIS OF RELATIONAL DATABASESAli Muhammad Ali Rushdi, Omar Mohammed Ba-RukabThere is an established equivalence between relational database Functional Dependencies (FDs) and a fragment of switching algebra that is built typically of Horn clauses. This equivalence pertains to both concepts and procedures of the FD relational database domain and the switching algebraic domain. This study is an exposition of the use of switching-algebraic tools in solving problems typically encountered in … …Journal of Mathematics and Statistics, Vol. 10, Issue 2 · 18 Apr 2014 · 6,705 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA FRAMEWORK TO MAGNITUDE THE PERFORMANCE AND BEHAVIOR OF WEB SERVICES USING ONTOLOGYN. Danapaquiame, E. Ilavarasan, Neeraj KumarA web service is a software interface that describes a collection of operations that can be accessed over the network through standardized XML messaging. Web services in different domains are diverse in implementation techniques thus requiring us to meet a wide range of test requirements. Testing services and service centric system poses new challenges to testing approaches. Several web services … …Journal of Computer Science, Vol. 10, Issue 4 · 21 Dec 2013 · 6,711 accessesView PDF Cite

Research ArticleOpen accessIn the abstractTowards A Dynamic Object-Oriented Design Metric Plug-in FrameworkC. H. Loh, S. P. LeeProblem Statement: The evolution of software is made difficult by the need to integrate new features with all previously implemented features in software applications. Approach: present study introduced a general-purpose, platform-independent object-oriented design metric plug-in framework called jmetric intended to help building scalable, extendable object-oriented design metric plug-ins. jmetric seeks to address problem by providing the plug-in developer a structured … …Journal of Computer Science, Vol. 4, Issue 11 · 30 Nov 2008 · 6,911 accessesView PDF Cite

Research ArticleOpen accessIn the abstractExtending the Concepts of Normalization from Relational Databases to Extensible-Markup-Language Databases ModelH.J. F. El-SofanyIn this study we have studied the problem of how to extend the concepts of Functional Dependency (FD) and normalization in relational databases to include the eXtensible Markup Language (XML) model. We shown that, like relational databases, XML documents may contain redundant information and this redundancy may cause update anomalies. Furthermore, such problems are caused by certain functional dependencies among … …Journal of Computer Science, Vol. 4, Issue 9 · 30 Sep 2008 · 6,461 accessesView PDF Cite