5 results for “equivalent classes”

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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 abstractComparative Study of BERT Based Architectures for Multi Task News Classification and Threat DetectionA. Mustain Billah, Sani M IsaWe present a comparative analysis of single-task and multi-task BERT-based models for Indonesian news classification across two objectives: category prediction (five classes) and threat detection (binary). Using 8,951 annotated news titles, single-task baselines achieved weighted F1 scores of 0.84±0.01 (category) and 0.87±0.00 (threat). Multi-task hybrids integrating CNN, LSTM, and Bi-LSTM layers performed comparably overall and improved minority class threat detection, … …Journal of Computer Science, Vol. 22, Issue 3 · 25 Mar 2026 · 1,124 accessesView PDF Cite

Research ArticleOpen accessIn the abstractCONSTRUCTION OF GENERAL SUBSUMPTIVE SOLUTIONS OF BOOLEAN EQUATIONS VIA COMPLETE-SUM DERIVATIONAli Muhammad Ali Rushdi, Hussain Mobarak AlbarakatiBoolean-equation solving permeates many diverse areas of modern science. To solve a system of Boolean equations, one usually combines them into an equivalent single Boolean equation {f(X) = 0} whose set of solutions is exactly the same as that of the original system of equations. One of the general classes of solutions for Boolean equations is the subsumptive general solution, … …Journal of Mathematics and Statistics, Vol. 10, Issue 2 · 13 Mar 2014 · 7,109 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Effect of Computer Use in Science and Technology Lesson on Success and Attitude TowardsCem O. Guzeller, Mustafa DogruProblem statement: Computer being indispensable in our daily lives came into use in all fields of education. Use of computer for education activities became mandatory. This research is an experimental research performed by use of computer in science and technology and is important in terms of serving science education. General purpose of this research is to reveal the effect of … …Journal of Social Sciences, Vol. 7, Issue 4 · 10 Aug 2011 · 10,034 accessesView PDF Cite

Research ArticleOpen accessIn the abstractTolerances Applied in Combinatorial OptimizationBoris Goldengorin, Gerold Jäger, Paul MolitorIn this paper we deal with sensitivity analysis of combinatorial optimization problems and its fundamental term, the tolerance. For three classes of objective functions (∑, ∏, MAX) we give some basic properties on upper and lower tolerances. We show that the upper tolerance of an element is well defined, how to compute the upper tolerance of an element and give … …Journal of Computer Science, Vol. 2, Issue 9 · 30 Sep 2006 · 18,423 accessesView PDF Cite