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14 articles for “Arithmetic mean”
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Research ArticleOpen accessIn the keywordsNon-Decimated Wavelet Transform and Vector Quantization for Lossy Medical Images CompressionHend A. Elsayed, Qusay E. Majeed, Mohammed M. El SherbinyThis study presents a new approach for lossy medical image compression using vector quantization. Recently, the digital image has been a reliable replacement for a hard copy of medical images, therefore, an effort has been made to ensure maintaining high-quality images to use for archiving, classification, or automated diagnostics support. Although the medical application contains all sorts of the images … …Journal of Computer Science, Vol. 19, Issue 3 · 24 Feb 2023 · 5,403 accessesView PDFCite
Research ArticleOpen accessIn the keywordsApproximation of Iteration Number for Gauss-Seidel Using Redlich-Kister PolynomialM. K. Hasan, J. Sulaiman, S. Ahmad et al.Problem statement: Development of mathematical models based on set of observed data plays a crucial role to describe and predict any phenomena in science, engineering and economics. Therefore, the main purpose of this study was to compare the efficiency of Arithmetic Mean (AM), Geometric Mean (GM) and Explicit Group (EG) iterative methods to solve system of linear equations via estimation … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 8,138 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA New Algorithm for Fractal Coding Using Self Organizing MapS. Bhavani, k. ThanushkodiProblem statement: In medical imaging, lossy compression schemes are generally not used due to possible loss of useful clinical information and also degradations may result in lossy compression owing to operations like enhancement. As the medical images are huge in size a good lossy compression technology is required to store them in medical archives in an economical manner. There is … …Journal of Computer Science, Vol. 8, Issue 6 · 15 Mar 2012 · 7,583 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn Bessel’s Correction: Unbiased Sample Variance, the Bariance, and a Novel Runtime-Optimized EstimatorFelix ReichelBessel’s correction adjusts the denominator in the sample variance formula from n to n – 1 to ensure an unbiased estimator of the population variance. This paper provides rigorous algebraic derivations to reinforce the necessity of this correction. It further introduces the concept of Bariance, an alternative dispersion measure based on average pairwise squared differences that avoids reliance on the … …Journal of Mathematics and Statistics, Vol. 21, Issue 1 · 29 Jan 2026 · 2,994 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Evolution Framework for Evaluating Intelligent Spectrum Sensing Mechanisms in Cognitive RadioArchana Krishnamuthy, Sudhindra Kumbhashi RajgopalCognitive radio technology has advanced to address the challenge of limited spectrum availability by employing spectrum sensing techniques. This process is framed as a detection problem involving two core hypotheses: Hypo-0 and Hypo-1. Hypo-0 represents the scenario where only noise is present, and its modeling depends on parameters such as the number of observed samples, the timing of signal acquisition, … …Journal of Computer Science, Vol. 21, Issue 8 · 4 Sep 2025 · 5,807 accessesView PDFCite
Research ArticleOpen accessIn the abstractClimate Zones and Morphometric Parameters of Apis mellifera carnica BeesZhanar Sheralieva, Ulzhan Nuraliyeva, Talgat Karymsakov et al.The Apis mellifera carnica is the most prevalent bee population distributed in the different climate zones of Kazakhstan. In this study, ten bee colonies of the A.m. carnica breed from six bee farms were selected for research, from six climate zones: Desert, semi-desert, steppe, forest-steppe, foothill, and mountain, and different regions: Southern, northern, eastern, western Kazakhstan. During the period of … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 4 · 12 Oct 2023 · 5,978 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeometric Mean Type Measure of Marginal Homogeneity for Square Contingency Tables with Ordered CategoriesTomoyuki Nakagawa, Toshiki Takei, Aki Ishii, Sadao TomizawaFor square contingency tables, some studies have developed the weighted arithmetic mean type measure to represent the degree of departure from the marginal homogeneity. The present paper proposes (1) the cumulative partial marginal homogeneity model which has the weaker restriction than the marginal homogeneity model and (2) the measure to represent the degree of departure from the proposed model. The … …Journal of Mathematics and Statistics, Vol. 16, Issue 1 · 11 Aug 2020 · 6,620 accessesView PDFCite
Research ArticleOpen accessIn the abstractScreening of Blast Resistance Genes from South Tapanuli Rice Cultivars, North Sumatra, IndonesiaSaleha Hannum, Hesti Wahyuningsih, Riyanto Sinaga et al.Rice blast disease caused by a phytopathogenic fungus, Magnaporthe oryzae, has been considered as a major threat to global rice productivity, including Indonesia. South Tapanuli is a regency in North Sumatra, known for its intensive and significant rice production activities. A collection of 13 rice cultivars originating from the region, is claimed for its resistances against the rice blast disease … …OnLine Journal of Biological Sciences, Vol. 20, Issue 2 · 25 May 2020 · 7,537 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Characterization of Goats Using Random Amplified Polymorphic DnaNandani Kumari, L. B. Singh, Subodh KumarBlack Bengal goat is a very valuable goat breed in India. The present investigation was proposed to be undertaken to evaluate gene flow, phylogeographic history, genetic structure and differentiation of both the goat populations to study genetic variation prevailing among Black Bengal and Black Bengal type goat in west Bengal and Jharkhand respectively and to study genetic relationship between both … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 1 · 20 Feb 2013 · 7,846 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Analysis of Coagulase Gene Polymorphism in Clinical Isolates of Methicilin Resistant Staphylococcus aureus by Restriction Fragment Length Polymorphism Based GenotypingM. Himabindu, D. Sugapriya Muthamilselvan, Dillip Kumar Bishi, Rama S. VermaProblem statement: To investigate coagulase gene variants through Restriction Fragment Length Polymorphism (RFLP) amongst clinical isolates of Methicillin-Resistant Staphylococcus Aureus (MRSA) collected from Chennai based hospitals. Approach: A total of 85 MRSA clinical isolates collected from various clinical sources were studied for the molecular typing purpose. To perform coagulase gene typing, the repeated units encoding hypervariable regions of the Staphylococcus … …American Journal of Infectious Diseases, Vol. 5, Issue 2 · 30 Jun 2009 · 8,766 accessesView PDFCite