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49 articles for “Refinement”
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Research ArticleOpen accessEvery word in the titleModel Refinement in the Model Driven Architecture ContextInali Wisniewski Soares, Luciane Telinski Wiedermann Agner, Paulo Cezar Stadzisz, Jean Marcelo SimaoProblem statement: Model Driven Architecture (MDA) is a software development approach based on the design and the transformation of models. In MDA, models are systematically translated to other models and to a source code. Model transformation plays a key role in MDA. Several model transformation languages have been launched lately, aiming to facilitate the translation of input models to output … …Journal of Computer Science, Vol. 8, Issue 8 · 10 Jul 2012 · 7,195 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNOVEL COLOR FILTER ARRAY DEMOSAICING IN FREQUENCY DOMAIN WITH SPATIAL REFINEMENTR. Niruban, T. Sree Renga Raja, T. Sree SharmilaThe main idea behind wavelet based demosaicing with spatial refinement is to reconstruct the full resolution color image from the mosaiced image. In this study, a new effective wavelet based demosaicing algorithm for interpolating the missing color components in Bayer’s Color Filter Array (CFA) pattern is proposed. This interpolation technique uses the interchannel correlation among the high frequency subbands to … …Journal of Computer Science, Vol. 10, Issue 8 · 9 Apr 2014 · 6,707 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA REFINEMENT OF DIJKSTRA'S ALGORITHM FOR EXTRACTION OF SHORTEST PATHS IN GENERALIZED REAL TIME-MULTIGRAPHSSiddhartha Sankar Biswas, Bashir Alam, M. N. DojaThe networks of the present day communication systems, be it a public road transportation system or a MANET or an Adhoc Network, frequently face a lot of uncertainties in particular regarding traffic jam, flood or water logging or PWD maintenance work (in case of public road network), attack or damage from internal or external agents, sudden failure of one or … …Journal of Computer Science, Vol. 10, Issue 4 · 14 Dec 2013 · 7,260 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSemantic Refinement of Multi-meaning Words by T-normsF. Sadeghi, H. Khosravi, E. EslamiIn this paper we consider a multi-meaning word which appears in a sentence together with some connected words. To refine the meaning of this multi-meaning word, we propose a method based on T-norms which are reasonable mathematical models of logical conjunction operator in fuzzy logic. The preliminary results derived from a prepared corpus are encouraging. …Journal of Computer Science, Vol. 1, Issue 3 · 30 Sep 2005 · 6,416 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA NOVEL HYBRID NODE LOCALIZATION ALGORITHM FOR WIRELESS SENSOR NETWORKSLiu Yu, Wang Haipeng, He You, Shen JianNode self-localization is one of the supporting technologies in Wireless Sensor Networks (WSNs). In this study, a distributed hybrid localization algorithm based on divide-and-conquer and refinement method is proposed. Firstly, the effect of ranging error in the Received Signal Strength (RSS) model on node localization is analyzed and the topology relations of anchors and unknown nodes are derived when the … …Journal of Computer Science, Vol. 9, Issue 12 · 25 Nov 2013 · 6,878 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCrystal Structure of 2-(4-Hydroxy-3-Methoxyphenyl)-6- (4-Hydroxy-3-Methoxystyryl)-1-Methyl-2, 3-Dihydropyridine-4 (1H)-One by X-Ray Powder DiffractionBahjat A. Saeed, Kawkab Y. Saour, Rita S. Elias, Deng XiaodiProblem statement: The studied dihydropyridone was synthesized for the first time via the microwave assisted reaction of curcumin and methylamine and it is important to support the mechanism by the crystal structure. Approach: The crystal structure of the title compound was determined using high resolution x-ray diffraction. PowderSolve program was used to solve the structure while the refinement was done … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 7,160 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Alternative Ray Tracing Algorithm for Understanding Scenes with Embedded ObjectsNancy Dandachy, Dimitri Plemenos, Safwan Chendeb, Bachar El HassanProblem statement: In the virtual world domain, the existing techniques of exploration, were not able alone to resolve the understanding problem of scenes with embedded object, also they are time and memory consuming. As a solution, a novel method that enhances the visualization of 3D ray traced scenes with embedded objects by creating a hole proportional to its interior parts … …Journal of Computer Science, Vol. 6, Issue 6 · 30 Jun 2010 · 7,288 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPolicy-Based Security for Wireless Components in High Assurance Computer SystemsLuay A. Wahsheh, Jim Alves-FossTo enable the growth of wireless networks in high assurance computer systems, it is essential to establish a security engineering methodology that provides system security managers with a procedural engineering process to develop computer security policies. Our research demonstrates how wireless communication technology is deployed using the Multiple Independent Levels of Security (MILS) architecture for high assurance computer system design … …Journal of Computer Science, Vol. 3, Issue 9 · 30 Sep 2007 · 7,329 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAuto Weight Dilated Convolutional Ensemble Network for the Severity Analysis of Lung Cancer in CT ImagesL. Sandhya, K. MarimuthuLung cancer is one of the world's leading causes of morbidity and mortality; improving patient outcomes requires an early and precise diagnosis. Lesion and tumor segmentation remains a challenging task in CT images due to their inherent imaging limitations, such as the small size of nodules, heterogeneous textures, blurry boundaries, and adjacent structures, leading to misclassification and difficulty in delineating … …Journal of Computer Science, Vol. 22, Issue 1 · 9 Feb 2026 · 1,541 accessesView PDFCite