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104 results for “random variable”
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Research ArticleOpen accessIn the abstractRandom Sum of Mixtures of Sum of Bivariate Exponential DistributionsAbd El-Moneim A.M. Teamah, Ahmed M.T. Abd El-BarProblem statement: The distributions of R = X+Y and W = X/(X+Y), where X and Y follow Lawrance and Lewis`s bivariate exponential distribution, is generalized. Approach: In this research we found mixtures of sum of bivariate exponential random variables. Results: Also we calculated the probability density function (pdf) of the random sum of mixtures of sum of bivariate exponential random … …Journal of Mathematics and Statistics, Vol. 5, Issue 4 · 31 Dec 2009 · 7,316 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Impact of CRM on the Customer Satisfaction in Agricultural BankMohammad Ali Sarlak, Rasool Sanavi FardProblem statement: There is much research on this subject, but none of them is about the use of customer relationship management for boosting the bank customer satisfaction. While we have not any study about customer satisfaction in Agricultural Bank especially in Qom providence. Approach: The research method was applied one and from viewpoint of the process, was considered to be … …American Journal of Economics and Business Administration, Vol. 1, Issue 2 · 30 Jun 2009 · 8,179 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe New Variable-Length Key Symmetric CryptosystemDavood Rezaei Pour, Mohamad Rushdan Md Said, Kamel Ariffin Mohd Atan, Mohamed OthmanProblem statement: In this study, we proposed a new 64-bit block cipher that accepted a variable-length key up to 512 bits, which was suitable for implementation in a variety of environments. Approach: The cipher algorithm was a 16-round Feistel network with a bijective function f and was made up of two key-dependent 16×16 S-boxes, bitwise rotations, and a carefully designed … …Journal of Mathematics and Statistics, Vol. 5, Issue 1 · 31 Mar 2009 · 7,213 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Test on the Multivariate Behrens–Fisher Problem in High–Dimensional Data by Block Covariance EstimationParanut Sukcharoen, Samruam ChongcharoenIn this paper, we proposed a new testing statistic for testing the equality of mean vectors from two multivariate normal populations when the covariance matrices are unknown and unequal in high–dimensional data. A new test is proposed based on the idea of keeping more information from the sample covariance matrices as much as possible. A proposed test is invariant under … …Journal of Mathematics and Statistics, Vol. 15, Issue 1 · 2 Apr 2019 · 7,369 accessesView PDFCite
Research ArticleOpen accessIn the abstractMachine Learning Oceanographic Data for Prediction of the Potential of Marine ResourcesDenny Arbahri, Oky Dwi Nurhayati, Imam MuditaMarine data and information are very important for human survival, therefore this data and information is attractive to investors because of the potential economic value. This data and information has been difficult to obtain, the solution to overcome this is by analyzing oceanographic data for 2009-2019 collected from the marine database belonging to the Agency for the Study and Application … …Journal of Computer Science, Vol. 20, Issue 2 · 8 Jan 2024 · 5,970 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison Between Selective Sampling and Random Undersampling for Classification of Customer Defection Using Support Vector MachineHeri Kuswanto, Yogi Sarumaha, Hayato OhwadaQuality of a product determines the customer loyalty and it can be measured by conducting a survey. Company ‘X’ that sells three kinds of product (low, medium and high price) collected very large dataset through an online survey and recorded customer defection and their characteristic. The measured variables are Update Accumulation, Product Price, Customer Type, Delivery Status and Customer Defection. … …Journal of Computer Science, Vol. 13, Issue 8 · 16 Aug 2017 · 7,263 accessesView PDFCite
Research ArticleOpen accessIn the abstractCOMPARATIVE STUDY ON ENERGY CONSUMPTION IN DYNAMIC WINDOW SECURED IMPLICIT GEOGRAPHIC FORWARDING ROUTING PROTOCOLAbubakar Idris Umar, Zurina Mohd HanapiAn Ideal WSNs should operate with the least possible energy required in order to increase the lifetime of the sensor nodes and at the same time, ensure network connectivity. But the Inherent power limitation makes power-awareness a critical requirement for WSN, this calls for the need to manage energy in sensor nodes. Also In order to ensure successful transmission of … …Journal of Computer Science, Vol. 10, Issue 9 · 9 Apr 2014 · 6,859 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Customer Relationship Management in a Teaching HospitalFereshteh Farzianpour, Leila Godarzi, Amin Torabipoor Hamedani et al.Communication between individuals has a vital role in human being’s life, specially their professional. In medical practice it is a certain and economical way recognize the patient’s problems and identify them. It is necessary to communicate with patients suffering mental or physical problems to be able to look after them. An analytical-descriptive cross-sectional study was conducted. The population under study … …American Journal of Applied Sciences, Vol. 10, Issue 4 · 12 Apr 2013 · 6,600 accessesView PDFCite
Research ArticleOpen accessIn the abstractOrganizational Factors and Innovativeness of Housing DevelopersAhmed Mohammed Kamaruddeen, Nor’ Aini Yusof, Ilias Said, Abd Hamid Kadir PakirIn examining the influence of a firm’s structure and culture on innovativeness among housing developers in Malaysia, we draw a theoretical perspective to develop hypotheses, that propose the structure and culture of the firm as organizational factors which influence innovativeness. We, therefore, examine the direct relationship between independent variables (firm structure and culture) and the dependent variable (firm innovativeness). While … …American Journal of Applied Sciences, Vol. 9, Issue 12 · 12 Dec 2012 · 7,693 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison Between Niemann’s and Finite Element Method for the Estimation of Maximum Allowable Stress of Meshing Spur Gear Teeth at Highest Point of Single Tooth ContactKonstandinos G. Raptis, Theodore N. Costopoulos, Andonios D. TsolakisPurpose of this study is the consideration of loading and contact problems encountered at rotating machine elements and especially at toothed gears. The later are some of the most commonly used mechanical components for rotary motion and power transmission. This fact proves the necessity for improved reliability and enhanced service life, which require precise and clear knowledge of the stress … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 2 · 27 Aug 2012 · 7,759 accessesView PDFCite