Edit Profile (opens in new tab) Ahmed, Syed Ejaz Compute Distance To: Compute Author ID: ahmed.syed-ejaz Published as: Ahmed, S. E.; Ahmed, S. Ejaz; Ahmed, Syed Ejaz; Ahmed, Ejaz; Ejaz Ahmed, S.; Ahmed, S. Ejaz.; Ahmed, Syed E. Homepage: https://brocku.ca/mathematics-science/mathematics/directory/syed-ejaz-ahmed/ External Links: MGP · ResearchGate Documents Indexed: 190 Publications since 1985, including 1 Book 11 Contributions as Editor Co-Authors: 105 Co-Authors with 122 Joint Publications 2,219 Co-Co-Authors all top 5 Co-Authors 32 single-authored 11 Volodin, Andrei I. 10 Hossain, Shakhawat 8 Lisawadi, Supranee 7 Agiza, Hamdy N. 7 Saleh, A. K. Md. Ehsanes 7 Yüzbasi, Bahadir 6 Abdusalam, H. A. 6 Doksum, Kjell A. 6 Hussein, Abdulkadir A. 5 Al-Kandari, Noriah M. A. 5 Buhamra, Sana S. 4 Aydin, Dursun 4 Fallahpour, Saber 4 Hassan, S. Z. 4 Khan, Sohail Munawar 3 Ahsanullah, Mohammad 3 Al-Momani, Marwan A. 3 Chitsaz, Shabnam 3 El Misiery, A. E. M. 3 Gao, Xiaoli 3 Li, Deli 3 Mahdi, T. N. 3 Muttlak, Hassen A. 3 Nkurunziza, Sévérien 3 Rosalsky, Andrew 3 Shah, Muhammad Kashif Ali 3 Volodin, Igor N. 3 Yilmaz, Ersin 2 Ali, Kashif 2 An, Lihua 2 Arashi, Mohammad 2 Balakrishnan, Narayanaswamy 2 El-Alem, Mahmoud M. 2 Enayetur Raheem, S. M. 2 Feng, Yang 2 Gupta, Arjun Kumar 2 Hussein, Mohammad Lotfy 2 Khan, B. U. 2 Liu, Shuangzhe 2 Ma, Shuangge 2 Malik, Henrick John 2 Nicol, Christopher J. 2 Norouzirad, Mina 2 Reangsephet, Orawan 2 Rizvi, Syed Tahir Raza 2 Sadeghkhani, Abdolnasser 2 Seadawy, Aly R. 2 Ullah, Bashir 2 Yassen, M. T. 2 ZafarYab, Muhammad 2 Zahra, Nighat 1 Almutawa, Jaafar 1 Alqahtani, Ali S. 1 Asar, Yasin 1 Ashry, G. A. 1 Askar, Sameh S. 1 Aslam, Mohammad 1 Badahdah, S. O. 1 Baklizi, Ayman S. 1 Bhoj, Dinesh S. 1 Budsaba, Kamon 1 Burney, S. A. 1 Burney, S. M. Aqil 1 Chen, Baojiang 1 Claeskens, Gerda 1 Elzayady, M. 1 Es-Sebaiy, Khalifa 1 Gel, Yulia R. 1 Giuliano Antonini, Rita 1 Goria, Mohammed N. 1 Henery, Robert J. 1 Hong, Hyokyoung Grace 1 Howlader, Hatem A. 1 Hu, Jianhua 1 Huang, Yuan 1 Hunter, Jeffrey J. 1 Joarder, Anwar H. 1 Joarder, Anwarul H. 1 Kareev, Iskander 1 Khurshid, Anwer 1 Kim, Hwanwoo 1 Krzanowski, Wojtek Janusz 1 Li, Yanming 1 Liu, Fuxiang 1 Lyubchich, Vyacheslav 1 Ma, Tiefeng 1 Maqsood, Arfa 1 Markiewilcz, Augustyn 1 Mexia, João Tiago Praça Nunes 1 Nkurunzizal, Sévérien 1 Omar, M. Hafidz 1 Omar, Yassmin A. 1 Ouassou, Idir 1 Puntanen, Simo 1 Rahbar, Mohammad Hossein 1 Rands, B. L. 1 Reid, Nancy M. 1 Rohatgi, Vijay K. 1 Safdar, Suboohi 1 Saheh, M. ...and 25 more Co-Authors all top 5 Serials 20 Journal of Statistical Computation and Simulation 11 Communications in Statistics. Theory and Methods 9 Computational Statistics and Data Analysis 8 Chaos, Solitons and Fractals 8 Pakistan Journal of Statistics 6 Metrika 6 Statistics & Probability Letters 6 Applied Stochastic Models in Business and Industry 5 International Journal of Theoretical Physics 5 Journal of Biomathematics 5 Linear Algebra and its Applications 5 International Journal of Applied Mathematics 4 Biometrical Journal 4 Journal of Statistical Planning and Inference 4 Communications in Statistics. Simulation and Computation 4 Journal of Nonparametric Statistics 4 Thailand Statistician 3 Journal of Statistical Physics 3 Applied Mathematics and Computation 3 Statistics 3 Lobachevskii Journal of Mathematics 3 International Journal of Nonlinear Science 2 Journal of Mathematical Physics 2 Karachi University Journal of Science 2 Industrial Mathematics 2 Sankhyā. Series B. Methodological 2 Soochow Journal of Mathematics 2 Journal of the Japan Statistical Society 2 Stochastic Analysis and Applications 2 Statistical Papers 2 Journal of Applied Statistical Science 2 Australian & New Zealand Journal of Statistics 2 Journal of Statistical Theory and Practice 2 Journal of the Iranian Statistical Society JIRSS 2 Journal of Fractional Calculus and Applications 2 Contributions to Statistics 1 Modern Physics Letters A 1 International Journal of Modern Physics B 1 General Relativity and Gravitation 1 Indian Journal of Pure & Applied Mathematics 1 Journal of Geometry and Physics 1 Theory of Probability and its Applications 1 Annals of the Institute of Statistical Mathematics 1 Fuzzy Sets and Systems 1 International Journal of Mathematics and Mathematical Sciences 1 Journal of Multivariate Analysis 1 Numerical Functional Analysis and Optimization 1 Statistica 1 Statistica Neerlandica 1 Revista Colombiana de Estadística 1 American Journal of Mathematical and Management Sciences 1 Computational Statistics 1 Bulletin of the Institute of Mathematics. Academia Sinica 1 Journal of Institute of Mathematics and Computer Sciences. Mathematics Series 1 Mathematical Problems in Engineering 1 Far East Journal of Theoretical Statistics 1 Journal of Applied Statistics 1 Calcutta Statistical Association Bulletin 1 International Journal of Differential Equations and Applications 1 International Journal of Modern Physics C 1 Nonlinear Analysis. Modelling and Control 1 International Mathematical Journal 1 Advances and Applications in Statistics 1 Advances in Complex Systems 1 REVSTAT 1 Statistical Methodology 1 Contemporary Mathematics 1 Lecture Notes in Statistics 1 Nonlinear Dynamics, Psychology, and Life Sciences 1 SpringerBriefs in Statistics all top 5 Fields 145 Statistics (62-XX) 23 Numerical analysis (65-XX) 22 Biology and other natural sciences (92-XX) 13 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 11 General and overarching topics; collections (00-XX) 11 Dynamical systems and ergodic theory (37-XX) 11 Probability theory and stochastic processes (60-XX) 7 Operations research, mathematical programming (90-XX) 6 Ordinary differential equations (34-XX) 4 Partial differential equations (35-XX) 4 Quantum theory (81-XX) 4 Systems theory; control (93-XX) 3 Combinatorics (05-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 3 Statistical mechanics, structure of matter (82-XX) 2 Real functions (26-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 1 Nonassociative rings and algebras (17-XX) 1 Group theory and generalizations (20-XX) 1 Measure and integration (28-XX) 1 Difference and functional equations (39-XX) 1 Differential geometry (53-XX) 1 Computer science (68-XX) 1 Fluid mechanics (76-XX) 1 Optics, electromagnetic theory (78-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Relativity and gravitational theory (83-XX) 1 Geophysics (86-XX) 1 Information and communication theory, circuits (94-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 105 Publications have been cited 581 times in 248 Documents Cited by ▼ Year ▼ On modifications of Puu’s dynamical duopoly. Zbl 0955.91045Ahmed, E.; Agiza, H. N.; Hassan, S. Z. 43 2000 Dynamics of a Cournot game with \(n\)-competitors. Zbl 0952.91004Ahmed, E.; Agiza, H. N. 33 1998 Shrinkage, pretest and absolute penalty estimators in partially linear models. Zbl 1158.62029Ejaz Ahmed, S.; Doksum, Kjell A.; Hossain, S.; You, Jinhong 31 2007 Recurrence relations and identities for moments of order statistics, II: Specific continuous distributions. Zbl 0696.62028Balakrishnan, N.; Malik, Henrick J.; Ahmed, S. E. 26 1988 Recurrence relations and identities for moments of order statistics, I: Arbitrary continuous distribution. Zbl 0696.62221Malik, Henrick J.; Balakrishnan, N.; Ahmed, S. E. 19 1988 On a fractional model for earthquakes. Zbl 1130.86309El-Misiery, A. E. M.; Ahmed, E. 17 2006 On the rate of complete convergence for weighted sums of arrays of Banach space valued random elements with application to moving average processes. Zbl 1017.60013Ahmed, S. Ejaz; Giuliano Antonini, Rita; Volodin, Andrei 15 2002 Risk comparison of some shrinkage M-estimators in linear models. Zbl 1106.62071Ahmed, S. E.; Hussein, A. A.; Sen, P. K. 14 2006 High order approximation for the coverage probability by a confident set centered at the positive-part James-Stein estimator. Zbl 1169.62007Ahmed, S. Ejaz; Volodin, Andrei I.; Volodin, Igor N. 12 2009 Biased estimation in a simple multivariate regression model. Zbl 1429.62183Ahmed, S. E.; Krzanowski, W. J. 12 2004 Estimation strategies for the intercept vector in a simple linear multivariate normal regression model. Zbl 0825.62570Ahmed, S. E.; Saleh, A. K. Md. E. 12 1990 Positive shrinkage, improved pretest and absolute penalty estimators in partially linear models. Zbl 1160.62066Hossain, S.; Doksum, Kjell A.; Ahmed, S. Ejaz 11 2009 Shrinkage drift parameter estimation for multi-factor Ornstein-Uhlenbeck processes. Zbl 1224.91173Nkurunziza, Sévérien; Ahmed, S. Ejaz 11 2010 Penalty, shrinkage and pretest strategies. Variable selection and estimation. Zbl 1306.62002Ahmed, S. Ejaz 11 2014 LASSO and shrinkage estimation in Weibull censored regression models. Zbl 1242.62075Ahmed, S. Ejaz; Hossain, Shakhawat; Doksum, Kjell A. 10 2012 Absolute penalty and shrinkage estimation in partially linear models. Zbl 1243.62058Raheem, S. M. Enayetur; Ahmed, S. Ejaz; Doksum, Kjell A. 10 2012 Improving the performance of kurtosis estimator. Zbl 1452.62026An, Lihua; Ahmed, S. Ejaz 9 2008 On modified Black-Scholes equation. Zbl 1071.91018Ahmed, E.; Abdusalam, H. A. 9 2004 Improved nonparametric estimation of location vectors in multivariate regression models. Zbl 0954.62046Ahmed, S. E.; Saleh, A. K. Md. E. 9 1999 On controlling chaos in an inflation-unemployment dynamical system. Zbl 0958.91042Ahmed, E.; El-Misiery, A.; Agiza, H. N. 9 1999 Almost sure lim sup behavior of bootstrapped means with applications to pairwise i. i. d. sequences and stationary ergodic sequences. Zbl 0977.62051Ahmed, S. E.; Li, Deli; Rosalsky, Andrew; Volodin, Andrei I. 8 2001 Simultaneous estimation of coefficients of variation. Zbl 1011.62026Ahmed, S. E. 8 2002 Pooling multivariate data. Zbl 0726.62070Ahmed, S. E.; Saleh, A. K. Md. E. 8 1989 Improved estimation of coefficient vector in a regression model. Zbl 1081.62533Khan, B. U.; Ahmed, S. E. 8 2003 On modelling advertisement in Cournot duopoly. Zbl 0957.91066Ahmed, E.; Agiza, H. N.; Hassan, S. Z. 8 1999 Shrinkage, pretest, and penalty estimators in generalized linear models. Zbl 07035611Hossain, Shakhawat; Ahmed, S. Ejaz; Doksum, Kjell A. 8 2015 Robust inference strategy in the presence of measurement error. Zbl 1185.62099Ahmed, S. Ejaz; Hussein, Abdulkadir; Nkurunziza, Sévérien 7 2010 Inference concerning quantile for left truncated and right censored data. Zbl 1429.62439BuHamra, Sana S.; Al-Kandari, Noriah M.; Ahmed, S. E. 7 2004 Asymptotic expansion of the coverage probability of James-Stein estimators. Zbl 1127.62014Ahmed, S. E.; Saleh, A. K. Md. E.; Volodin, A. I.; Volodin, I. N. 7 2007 A pooling methodology for coefficient of variation. Zbl 0856.62033Ahmed, S. E. 7 1995 Shrinkage and pretest estimators for longitudinal data analysis under partially linear models. Zbl 1407.62136Hossain, S.; Ahmed, S. Ejaz; Yi, Grace Y.; Chen, B. 7 2016 Assessing the process capability index for non-normal processes. Zbl 1058.62113Ahmed, S. E. 6 2005 Parametric estimation for the Birnbaum-Saunders lifetime distribution based on a new parametrization. Zbl 1361.62012Ahmed, Syed E.; Budsaba, Kamon; Lisawadi, Supranee; Volodin, Andrei 6 2008 Estimation of parameters in the growth curve model via an outer product least squares approach for covariance. Zbl 1238.62066Hu, Jianhua; Liu, Fuxiang; Ahmed, S. Ejaz 6 2012 \(L_{1}\) penalty and shrinkage estimation in partially linear models with random coefficient autoregressive errors. Zbl 06292438Fallahpour, Saber; Ahmed, S. Ejaz; Doksum, Kjell A. 6 2012 Complete convergence of bootstrapped means and moments of the supremum of normed bootstrapped sums. Zbl 1069.62528Li, Deli; Rosalsky, Andrew; Ahmed, S. E. 6 1999 A bootstrap theorem for a preliminary test estimator. Zbl 0774.62029Kulperger, R. J.; Ahmed, S. E. 5 1992 Improved biased estimation in an ANOVA model. Zbl 0930.62069Ahmed, S. E.; Ullah, Bashir 5 1999 Estimation of regression coefficients in an exponential regression model with censored observations. Zbl 0934.62103Ahmed, S. E.; Saleh, A. K. Md. E. 5 1999 Simultaneous estimation of several intraclass correlation coefficients. Zbl 1027.62037Ahmed, S. E.; Gupta, A. K.; Khan, S. M.; Nicol, C. J. 5 2001 Estimation of the scale matrix of a class of elliptical distributions. Zbl 0990.62046Joarder, A. H.; Ahmed, S. E. 5 1998 Estimation of the characteristic roots of the scale matrix. Zbl 0864.62038Joarder, Anwarul H.; Ahmed, S. E. 5 1996 Post selection shrinkage estimation for high-dimensional data analysis. Zbl 1411.62200Gao, Xiaoli; Ahmed, S. E.; Feng, Yang 5 2017 Improved penalty strategies in linear regression models. Zbl 1369.62160Yüzbasi, Bahadir; Ahmed, S. Ejaz; Güngör, Mehmet 5 2017 Big and complex data analysis. Methodologies and applications. Zbl 1392.62007 5 2017 Shrinkage and penalty estimators of a Poisson regression model. Zbl 1334.62127Hossain, Shakhawat; Ahmed, Ejaz 4 2012 Improved estimation in a multivariate regression model. Zbl 0937.62596Ahmed, S. Ejaz 4 1994 Least squares, preliminary test and Stein-type estimation in general vector \(AR(p)\) models. Zbl 0957.62072Ahmed, S. E.; Basu, A. K. 4 2000 Shrinkage estimation in linear mixed models for longitudinal data. Zbl 1408.62133Hossain, Shakhawat; Thomson, Trevor; Ahmed, Ejaz 4 2018 Nonparametric inference strategies for the quantile functions under left truncation and right censoring. Zbl 1146.62024Buhamra, Sana S.; Al-Kandari, Noriah M.; Ahmed, S. E. 3 2007 Shrinkage estimation of the proportion in randomized response. Zbl 0845.62008Ahmed, S. E.; Rohatgi, V. K. 3 1996 On inhomogeneous prey-predator model. Zbl 1056.92513Ahmed, E.; Yassen, M. T. 3 2000 On multiobjective optimization in portfolio management. Zbl 1096.91020Ahmed, E.; El-Alem, M. 3 2005 On the asymptotic probability for the deviations of dependent bootstrap means from the sample mean. Zbl 1078.60017Ahmed, S. Ejaz; Li, Deli; Rosalsky, Andrew; Volodin, Andrei 3 2005 Comparisons of improved risk estimators of the multivariate mean vector. Zbl 1431.62283Khan, B. U.; Ahmed, S. E. 3 2006 Model selection and post estimation based on a pretest for logistic regression models. Zbl 07184811Lisawadi, Supranee; Shah, Muhammad Kashif Ali; Ahmed, S. Ejaz 3 2016 Estimating and testing effect size from an arbitrary population. Zbl 1108.62020Al-Kandari, Noriah M.; Buhamra, Sana S.; Ahmed, S. E. 2 2005 On the estimation of reliabilty function in a Weibull lifetime distribution. Zbl 1274.62666Baklizi, Ayman; Ahmed, S. E. 2 2008 Positive-shrinkage and pretest estimation in multiple regression: a Monte Carlo study with applications. Zbl 1244.62103Enayetur Raheem, S. M.; Ejaz Ahmed, S. 2 2011 An improved estimation in regression parameter matrix in multivariate regression model. Zbl 1271.62116Chitsaz, S.; Ahmed, S. Ejaz 2 2012 On controlling chaos in Cournot-games with two and three competitors. Zbl 1201.37119Ahmed, E.; Hassan, S. Z. 2 2000 On the rate of convergence of bootstrapped means in a Banach space. Zbl 0984.60016Ejaz Ahmed, S.; Hu, T.-C.; Volodin, Andrei I. 2 2001 Modeling the failure of a fractal tree and Julia sets. Zbl 0955.37023Abdusalam, H. A.; Ahmed, E. 2 2000 Pooling reliability functions. Zbl 0832.62086Ahmed, S. E. 2 1994 On extensions of supersymmetry algebras in \(d=4\) and 11. Zbl 0573.53051Ahmed, E.; Rands, B. L.; Taylor, J. G. 2 1985 Shrinkage estimation and variable selection in multiple regression models with random coefficient autoregressive errors. Zbl 1396.62169Fallahpour, Saber; Ejaz Ahmed, S. 2 2014 Shrinkage estimation for the regression parameter matrix in multivariate regression model. Zbl 1431.62298Chitsaz, Shabnam; Ahmed, S. Ejaz 2 2012 Shrinkage estimation for the mean of the inverse Gaussian population. Zbl 1304.62046Ma, Tiefeng; Liu, Shuangzhe; Ahmed, S. Ejaz 2 2014 Immune-motivated optimization. Zbl 1065.90544Ahmed, E.; El-Alem, M. 2 2002 Adaptive estimation strategies in gamma regression model. Zbl 1437.62281Reangsephet, O.; Lisawadi, S.; Ahmed, S. E. 2 2020 Asymptotic theory of simultaneous estimation of Poisson means. Zbl 1160.62019Ejaz Ahmed, S.; Liu, Shuangzhe 1 2009 Stabilizing the performance of kurtosis estimator of multivariate data. Zbl 1271.62114Ahmed, S. Ejaz.; Omar, M. Hafidz; Joarder, Anwar H. 1 2012 An application of shrinkage estimation to the nonlinear regression model. Zbl 1255.62203Ahmed, S. Ejaz; Nicol, Christopher J. 1 2012 Shrinkage estimation in replicated median ranked set sampling. Zbl 1205.62034Muttlak, H. A.; Ahmed, S. E.; Al-Momani, M. 1 2010 Estimation strategy using a preliminary test in some normal models. Zbl 0683.62004Ahmed, S. E.; Saleh, A. K. Md. Ehsanes 1 1988 On anyonic variables and fractional supersymmetry. Zbl 1022.81808Ahmed, E. 1 1996 To pool or not to pool: The multivariate data. Zbl 0972.62032Ahmed, S. E.; Ullah, Bashir 1 1999 Improved pretest nonparametric estimation in a multivariate regression model. Zbl 0949.62027Ahmed, S. E. 1 1998 A Monte Carlo study of robustness of pretest and shrinkage estimators in pooling coefficients of variation. Zbl 0913.62016Ahmed, S. E.; Bhoj, D. S.; Ahsanullah, M. 1 1998 On a generalized model of biological evolution. Zbl 0913.92014Agiza, H. N.; Elettreby, M. F.; Ahmed, E. 1 1997 Simultaneous estimation of survivor functions in exponential lifetime models. Zbl 0936.62109Ahmed, S. E. 1 1999 On modeling Hepatitis B transmission using cellular automata. Zbl 0928.92024Ahmed, E.; Agiza, H. N.; Hassan, S. Z. 1 1998 Fuzzy concepts in radiotherapy. Zbl 0956.92025Hussein, M. L.; Ahmed, E. 1 2000 Large-sample estimation strategies for eigenvalues of a Wishart matrix. Zbl 1093.62543Ahmed, S. E. 1 1998 Improved shrinkage estimation of relative potency. Zbl 0837.62098Ahmed, S. E. 1 1995 Shrinkage estimation and selection for a logistic regression model. Zbl 1327.62421Hossain, Shakhawat; Ahmed, S. Ejaz 1 2014 Data-based adaptive estimation in an investment model. Zbl 1277.62247Ahmed, S. Ejaz; Chitsaz, S. 1 2011 Using several data to structure efficient estimation of intraclass correlation coefficients. Zbl 1089.62065Ahmed, S. E.; Khan, S. M. 1 2002 Improved prediction: Pooling two identical regression lines. Zbl 0901.62083Mahdi, T. N.; Ahmed, S. E.; Ahsanullah, M. 1 1998 On the application of fuzzy decision theory in chemotherapy. Zbl 0888.92020Ahmed, E.; Hussein, M. L. 1 1997 Percolation on general trees and HIV modeling. Zbl 0861.92016Ahmed, E.; Agiza, H. N. 1 1996 Penalized and shrinkage estimation in the Cox proportional hazards model. Zbl 1462.62582Hossain, Shakhawat; Ahmed, S. Ejaz 1 2014 Stein-type estimation using ranked set sampling. Zbl 1431.62032Ahmed, S. E.; Muttlak, H. A.; Al-Mutawa, J.; Saheh, M. 1 2012 Stein-type shrinkage quantile estimation. Zbl 0964.62040Ahmed, S. E. 1 2000 Shrinkage and pretest nonparametric estimation of regression parameters from censored data with multiple observations at each level of covariate. Zbl 0959.62037Ahmed, S. E.; Rahbar, M. H. 1 2000 Empirical Bayes and likelihood inference. Workshop, Centre de Recherches Mathématiques, Montreal, Canada, November 1997. Zbl 0952.00035 1 2001 On fractional order quantum mechanics. Zbl 1394.81133Shahin, A. M.; Ahmed, E.; Omar, Yassmin A. 1 2009 Rank-based Liu regression. Zbl 1417.62199Arashi, Mohammad; Norouzirad, Mina; Ahmed, S. Ejaz; Yüzbaşı, Bahadır 1 2018 Shrinkage and penalized estimation in semi-parametric models with multicollinear data. Zbl 07184814Yüzbaşı, Bahadır; Ahmed, S. Ejaz 1 2016 Merging data from multiple sources: pretest and shrinkage perspectives. Zbl 07192018Shah, Muhammad Kashif Ali; Lisawadi, Supranee; Ahmed, S. Ejaz 1 2017 Lump, rogue wave, multi-waves and homoclinic breather solutions for \((2+1)\)-modified Veronese web equation. Zbl 1455.37060Rizvi, S. T. R.; Seadawy, Aly R.; Ahmed, S.; Younis, M.; Ali, K. 1 2021 Adaptive estimation strategies in gamma regression model. Zbl 1437.62281Reangsephet, O.; Lisawadi, S.; Ahmed, S. E. 2 2020 Post selection estimation and prediction in Poisson regression model. Zbl 1454.62219Reangsephet, Orawan; Lisawadi, Supranee; Ahmed, Syed Ejaz 1 2020 Estimating the nonparametric regression function by using Padé approximation based on total least squares. Zbl 1467.62060Ahmed, Syed Ejaz; Aydin, Dursun; Yilmaz, Ersin 1 2020 Shrinkage estimation in linear mixed models for longitudinal data. Zbl 1408.62133Hossain, Shakhawat; Thomson, Trevor; Ahmed, Ejaz 4 2018 Rank-based Liu regression. Zbl 1417.62199Arashi, Mohammad; Norouzirad, Mina; Ahmed, S. Ejaz; Yüzbaşı, Bahadır 1 2018 Post selection shrinkage estimation for high-dimensional data analysis. Zbl 1411.62200Gao, Xiaoli; Ahmed, S. E.; Feng, Yang 5 2017 Improved penalty strategies in linear regression models. Zbl 1369.62160Yüzbasi, Bahadir; Ahmed, S. Ejaz; Güngör, Mehmet 5 2017 Big and complex data analysis. Methodologies and applications. Zbl 1392.62007 5 2017 Merging data from multiple sources: pretest and shrinkage perspectives. Zbl 07192018Shah, Muhammad Kashif Ali; Lisawadi, Supranee; Ahmed, S. Ejaz 1 2017 Improved robust ridge M-estimation. Zbl 07192127Norouzirad, M.; Arashi, M.; Ahmed, S. E. 1 2017 Shrinkage and pretest estimators for longitudinal data analysis under partially linear models. Zbl 1407.62136Hossain, S.; Ahmed, S. Ejaz; Yi, Grace Y.; Chen, B. 7 2016 Model selection and post estimation based on a pretest for logistic regression models. Zbl 07184811Lisawadi, Supranee; Shah, Muhammad Kashif Ali; Ahmed, S. Ejaz 3 2016 Shrinkage and penalized estimation in semi-parametric models with multicollinear data. Zbl 07184814Yüzbaşı, Bahadır; Ahmed, S. Ejaz 1 2016 Shrinkage, pretest, and penalty estimators in generalized linear models. Zbl 07035611Hossain, Shakhawat; Ahmed, S. Ejaz; Doksum, Kjell A. 8 2015 Penalty, shrinkage and pretest strategies. Variable selection and estimation. Zbl 1306.62002Ahmed, S. Ejaz 11 2014 Shrinkage estimation and variable selection in multiple regression models with random coefficient autoregressive errors. Zbl 1396.62169Fallahpour, Saber; Ejaz Ahmed, S. 2 2014 Shrinkage estimation for the mean of the inverse Gaussian population. Zbl 1304.62046Ma, Tiefeng; Liu, Shuangzhe; Ahmed, S. Ejaz 2 2014 Shrinkage estimation and selection for a logistic regression model. Zbl 1327.62421Hossain, Shakhawat; Ahmed, S. Ejaz 1 2014 Penalized and shrinkage estimation in the Cox proportional hazards model. Zbl 1462.62582Hossain, Shakhawat; Ahmed, S. Ejaz 1 2014 LASSO and shrinkage estimation in Weibull censored regression models. Zbl 1242.62075Ahmed, S. Ejaz; Hossain, Shakhawat; Doksum, Kjell A. 10 2012 Absolute penalty and shrinkage estimation in partially linear models. Zbl 1243.62058Raheem, S. M. Enayetur; Ahmed, S. Ejaz; Doksum, Kjell A. 10 2012 Estimation of parameters in the growth curve model via an outer product least squares approach for covariance. Zbl 1238.62066Hu, Jianhua; Liu, Fuxiang; Ahmed, S. Ejaz 6 2012 \(L_{1}\) penalty and shrinkage estimation in partially linear models with random coefficient autoregressive errors. Zbl 06292438Fallahpour, Saber; Ahmed, S. Ejaz; Doksum, Kjell A. 6 2012 Shrinkage and penalty estimators of a Poisson regression model. Zbl 1334.62127Hossain, Shakhawat; Ahmed, Ejaz 4 2012 An improved estimation in regression parameter matrix in multivariate regression model. Zbl 1271.62116Chitsaz, S.; Ahmed, S. Ejaz 2 2012 Shrinkage estimation for the regression parameter matrix in multivariate regression model. Zbl 1431.62298Chitsaz, Shabnam; Ahmed, S. Ejaz 2 2012 Stabilizing the performance of kurtosis estimator of multivariate data. Zbl 1271.62114Ahmed, S. Ejaz.; Omar, M. Hafidz; Joarder, Anwar H. 1 2012 An application of shrinkage estimation to the nonlinear regression model. Zbl 1255.62203Ahmed, S. Ejaz; Nicol, Christopher J. 1 2012 Stein-type estimation using ranked set sampling. Zbl 1431.62032Ahmed, S. E.; Muttlak, H. A.; Al-Mutawa, J.; Saheh, M. 1 2012 Shrinkage estimation strategy in quasi-likelihood models. Zbl 1471.62415Ejaz Ahmed, S.; Fallahpour, Saber 1 2012 Positive-shrinkage and pretest estimation in multiple regression: a Monte Carlo study with applications. Zbl 1244.62103Enayetur Raheem, S. M.; Ejaz Ahmed, S. 2 2011 Data-based adaptive estimation in an investment model. Zbl 1277.62247Ahmed, S. Ejaz; Chitsaz, S. 1 2011 Shrinkage drift parameter estimation for multi-factor Ornstein-Uhlenbeck processes. Zbl 1224.91173Nkurunziza, Sévérien; Ahmed, S. Ejaz 11 2010 Robust inference strategy in the presence of measurement error. Zbl 1185.62099Ahmed, S. Ejaz; Hussein, Abdulkadir; Nkurunziza, Sévérien 7 2010 Shrinkage estimation in replicated median ranked set sampling. Zbl 1205.62034Muttlak, H. A.; Ahmed, S. E.; Al-Momani, M. 1 2010 High order approximation for the coverage probability by a confident set centered at the positive-part James-Stein estimator. Zbl 1169.62007Ahmed, S. Ejaz; Volodin, Andrei I.; Volodin, Igor N. 12 2009 Positive shrinkage, improved pretest and absolute penalty estimators in partially linear models. Zbl 1160.62066Hossain, S.; Doksum, Kjell A.; Ahmed, S. Ejaz 11 2009 Asymptotic theory of simultaneous estimation of Poisson means. Zbl 1160.62019Ejaz Ahmed, S.; Liu, Shuangzhe 1 2009 On fractional order quantum mechanics. Zbl 1394.81133Shahin, A. M.; Ahmed, E.; Omar, Yassmin A. 1 2009 Improving the performance of kurtosis estimator. Zbl 1452.62026An, Lihua; Ahmed, S. Ejaz 9 2008 Parametric estimation for the Birnbaum-Saunders lifetime distribution based on a new parametrization. Zbl 1361.62012Ahmed, Syed E.; Budsaba, Kamon; Lisawadi, Supranee; Volodin, Andrei 6 2008 On the estimation of reliabilty function in a Weibull lifetime distribution. Zbl 1274.62666Baklizi, Ayman; Ahmed, S. E. 2 2008 Shrinkage, pretest and absolute penalty estimators in partially linear models. Zbl 1158.62029Ejaz Ahmed, S.; Doksum, Kjell A.; Hossain, S.; You, Jinhong 31 2007 Asymptotic expansion of the coverage probability of James-Stein estimators. Zbl 1127.62014Ahmed, S. E.; Saleh, A. K. Md. E.; Volodin, A. I.; Volodin, I. N. 7 2007 Nonparametric inference strategies for the quantile functions under left truncation and right censoring. Zbl 1146.62024Buhamra, Sana S.; Al-Kandari, Noriah M.; Ahmed, S. E. 3 2007 On a fractional model for earthquakes. Zbl 1130.86309El-Misiery, A. E. M.; Ahmed, E. 17 2006 Risk comparison of some shrinkage M-estimators in linear models. Zbl 1106.62071Ahmed, S. E.; Hussein, A. A.; Sen, P. K. 14 2006 Comparisons of improved risk estimators of the multivariate mean vector. Zbl 1431.62283Khan, B. U.; Ahmed, S. E. 3 2006 Assessing the process capability index for non-normal processes. Zbl 1058.62113Ahmed, S. E. 6 2005 On multiobjective optimization in portfolio management. Zbl 1096.91020Ahmed, E.; El-Alem, M. 3 2005 On the asymptotic probability for the deviations of dependent bootstrap means from the sample mean. Zbl 1078.60017Ahmed, S. Ejaz; Li, Deli; Rosalsky, Andrew; Volodin, Andrei 3 2005 Estimating and testing effect size from an arbitrary population. Zbl 1108.62020Al-Kandari, Noriah M.; Buhamra, Sana S.; Ahmed, S. E. 2 2005 Biased estimation in a simple multivariate regression model. Zbl 1429.62183Ahmed, S. E.; Krzanowski, W. J. 12 2004 On modified Black-Scholes equation. Zbl 1071.91018Ahmed, E.; Abdusalam, H. A. 9 2004 Inference concerning quantile for left truncated and right censored data. Zbl 1429.62439BuHamra, Sana S.; Al-Kandari, Noriah M.; Ahmed, S. E. 7 2004 Improved estimation of coefficient vector in a regression model. Zbl 1081.62533Khan, B. U.; Ahmed, S. E. 8 2003 On the rate of complete convergence for weighted sums of arrays of Banach space valued random elements with application to moving average processes. Zbl 1017.60013Ahmed, S. Ejaz; Giuliano Antonini, Rita; Volodin, Andrei 15 2002 Simultaneous estimation of coefficients of variation. Zbl 1011.62026Ahmed, S. E. 8 2002 Immune-motivated optimization. Zbl 1065.90544Ahmed, E.; El-Alem, M. 2 2002 Using several data to structure efficient estimation of intraclass correlation coefficients. Zbl 1089.62065Ahmed, S. E.; Khan, S. M. 1 2002 Almost sure lim sup behavior of bootstrapped means with applications to pairwise i. i. d. sequences and stationary ergodic sequences. Zbl 0977.62051Ahmed, S. E.; Li, Deli; Rosalsky, Andrew; Volodin, Andrei I. 8 2001 Simultaneous estimation of several intraclass correlation coefficients. Zbl 1027.62037Ahmed, S. E.; Gupta, A. K.; Khan, S. M.; Nicol, C. J. 5 2001 On the rate of convergence of bootstrapped means in a Banach space. Zbl 0984.60016Ejaz Ahmed, S.; Hu, T.-C.; Volodin, Andrei I. 2 2001 Empirical Bayes and likelihood inference. Workshop, Centre de Recherches Mathématiques, Montreal, Canada, November 1997. Zbl 0952.00035 1 2001 On modifications of Puu’s dynamical duopoly. Zbl 0955.91045Ahmed, E.; Agiza, H. N.; Hassan, S. Z. 43 2000 Least squares, preliminary test and Stein-type estimation in general vector \(AR(p)\) models. Zbl 0957.62072Ahmed, S. E.; Basu, A. K. 4 2000 On inhomogeneous prey-predator model. Zbl 1056.92513Ahmed, E.; Yassen, M. T. 3 2000 On controlling chaos in Cournot-games with two and three competitors. Zbl 1201.37119Ahmed, E.; Hassan, S. Z. 2 2000 Modeling the failure of a fractal tree and Julia sets. Zbl 0955.37023Abdusalam, H. A.; Ahmed, E. 2 2000 Fuzzy concepts in radiotherapy. Zbl 0956.92025Hussein, M. L.; Ahmed, E. 1 2000 Stein-type shrinkage quantile estimation. Zbl 0964.62040Ahmed, S. E. 1 2000 Shrinkage and pretest nonparametric estimation of regression parameters from censored data with multiple observations at each level of covariate. Zbl 0959.62037Ahmed, S. E.; Rahbar, M. H. 1 2000 Improved nonparametric estimation of location vectors in multivariate regression models. Zbl 0954.62046Ahmed, S. E.; Saleh, A. K. Md. E. 9 1999 On controlling chaos in an inflation-unemployment dynamical system. Zbl 0958.91042Ahmed, E.; El-Misiery, A.; Agiza, H. N. 9 1999 On modelling advertisement in Cournot duopoly. Zbl 0957.91066Ahmed, E.; Agiza, H. N.; Hassan, S. Z. 8 1999 Complete convergence of bootstrapped means and moments of the supremum of normed bootstrapped sums. Zbl 1069.62528Li, Deli; Rosalsky, Andrew; Ahmed, S. E. 6 1999 Improved biased estimation in an ANOVA model. Zbl 0930.62069Ahmed, S. E.; Ullah, Bashir 5 1999 Estimation of regression coefficients in an exponential regression model with censored observations. Zbl 0934.62103Ahmed, S. E.; Saleh, A. K. Md. E. 5 1999 To pool or not to pool: The multivariate data. Zbl 0972.62032Ahmed, S. E.; Ullah, Bashir 1 1999 Simultaneous estimation of survivor functions in exponential lifetime models. Zbl 0936.62109Ahmed, S. E. 1 1999 Dynamics of a Cournot game with \(n\)-competitors. Zbl 0952.91004Ahmed, E.; Agiza, H. N. 33 1998 Estimation of the scale matrix of a class of elliptical distributions. Zbl 0990.62046Joarder, A. H.; Ahmed, S. E. 5 1998 Improved pretest nonparametric estimation in a multivariate regression model. Zbl 0949.62027Ahmed, S. E. 1 1998 A Monte Carlo study of robustness of pretest and shrinkage estimators in pooling coefficients of variation. Zbl 0913.62016Ahmed, S. E.; Bhoj, D. S.; Ahsanullah, M. 1 1998 On modeling Hepatitis B transmission using cellular automata. Zbl 0928.92024Ahmed, E.; Agiza, H. N.; Hassan, S. Z. 1 1998 Large-sample estimation strategies for eigenvalues of a Wishart matrix. Zbl 1093.62543Ahmed, S. E. 1 1998 Improved prediction: Pooling two identical regression lines. Zbl 0901.62083Mahdi, T. N.; Ahmed, S. E.; Ahsanullah, M. 1 1998 On a generalized model of biological evolution. Zbl 0913.92014Agiza, H. N.; Elettreby, M. F.; Ahmed, E. 1 1997 On the application of fuzzy decision theory in chemotherapy. Zbl 0888.92020Ahmed, E.; Hussein, M. L. 1 1997 Estimation of the characteristic roots of the scale matrix. Zbl 0864.62038Joarder, Anwarul H.; Ahmed, S. E. 5 1996 Shrinkage estimation of the proportion in randomized response. Zbl 0845.62008Ahmed, S. E.; Rohatgi, V. K. 3 1996 On anyonic variables and fractional supersymmetry. Zbl 1022.81808Ahmed, E. 1 1996 Percolation on general trees and HIV modeling. Zbl 0861.92016Ahmed, E.; Agiza, H. N. 1 1996 A pooling methodology for coefficient of variation. Zbl 0856.62033Ahmed, S. E. 7 1995 Improved shrinkage estimation of relative potency. Zbl 0837.62098Ahmed, S. E. 1 1995 Improved estimation in a multivariate regression model. Zbl 0937.62596Ahmed, S. Ejaz 4 1994 Pooling reliability functions. Zbl 0832.62086Ahmed, S. E. 2 1994 A bootstrap theorem for a preliminary test estimator. Zbl 0774.62029Kulperger, R. J.; Ahmed, S. E. 5 1992 Estimation strategies for the intercept vector in a simple linear multivariate normal regression model. Zbl 0825.62570Ahmed, S. E.; Saleh, A. K. Md. E. 12 1990 ...and 5 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 322 Authors 61 Ahmed, Syed Ejaz 15 Nkurunziza, Sévérien 14 Hossain, Shakhawat 10 Arashi, Mohammad 9 Volodin, Andrei I. 6 Doksum, Kjell A. 6 Lisawadi, Supranee 6 Roozbeh, Mahdi 5 Al-Kandari, Noriah M. A. 5 Buhamra, Sana S. 5 Hussein, Abdulkadir A. 5 Joarder, Anwar H. 5 Nadarajah, Saralees 5 Saleh, A. K. Md. Ehsanes 4 Burch, Brent D. 4 Fallahpour, Saber 4 Kamps, Udo 4 Khan, Hafiz M. R. 4 Khan, Shahjahan 4 Leeb, Hannes 4 Norouzirad, Mina 4 Potscher, Benedikt M. 4 Rosalsky, Andrew 4 Vieu, Philippe 4 Yüzbasi, Bahadir 3 Al-Momani, Marwan A. 3 Aneiros-Pérez, Germán 3 Aydin, Dursun 3 Baek, Jong-Il 3 Chitsaz, Shabnam 3 Fraiman, Ricardo 3 Hu, Jianhua 3 Hu, Tienchung 3 Kibria, B. M. Golam 3 Li, Deli 3 Ordóñez Cabrera, Manuel H. 3 Pushkarna, Narinder 3 Saran, Jagdish 3 Shah, Muhammad Kashif Ali 2 Abu-Youssef, S. E. 2 Ahmad, Abd El-Baset A. 2 An, Lihua 2 Asar, Yasin 2 Athar, Haseeb 2 Chen, Fuqi 2 Emami, Hadi 2 Gupta, Arjun Kumar 2 Howlader, Hatem A. 2 Jana, Nabakumar 2 Lac, Le An 2 Leiva, Víctor 2 Liu, Shuangzhe 2 Mahmoud, Mohamed Abdel Wahab 2 Mandal, Saumen 2 Mirmostafaee, S. M. T. K. 2 Muttlak, Hassen A. 2 Niroumand, Hossein Ali 2 Niwitpong, Sa-aat 2 Omar, M. Hafidz 2 Qiu, Dehua 2 Ross, Elizabeth 2 Sarr, Amadou 2 Saxena, Anshul 2 Sen, Pranab Kumar 2 Sultan, Khalaf Salman 2 Sung, Soohak 2 Tang, Manlai 2 Thangjai, Warisa 2 Thomson, Trevor 2 Tian, Maozai 2 Tian, Yuzhu 2 Urmeneta, Henar 2 Volodin, Igor N. 2 Xin, Xin 2 Xu, Jianwen 2 Yang, Hu 2 Yilmaz, Ersin 2 You, Jinhong 2 Žežula, Ivan 2 Zhang, Huaiyu 1 Aaron, Catherine 1 Abd El-Baset, A. Ahmad 1 Aerts, Stephanie 1 Ahmed, Nasar U. 1 Akdeniz Duran, Esra 1 Akdeniz, Fikri 1 Akhter, Zuber 1 Al-Mutairi, Dhaifalla K. 1 Albatineh, Ahmed N. 1 Alharbi, Yousef Fyaz 1 Almutawa, Jaafar 1 Alshahrani, Saeed 1 Arabi, Reza 1 Argaç, Doğan 1 Ausloos, Marcel R. 1 Badahdah, S. O. 1 Bageta, Rubén 1 Bai, Fangfang 1 Baklizi, Ayman S. 1 Balakrishnan, Narayanaswamy ...and 222 more Authors all top 5 Cited in 69 Serials 27 Journal of Statistical Computation and Simulation 25 Communications in Statistics. Theory and Methods 15 Computational Statistics and Data Analysis 14 Statistics & Probability Letters 12 Journal of Statistical Planning and Inference 12 Statistics 12 Statistical Papers 11 Metrika 11 Journal of Multivariate Analysis 9 Journal of Applied Statistics 6 Linear Algebra and its Applications 6 Journal of Nonparametric Statistics 6 Lobachevskii Journal of Mathematics 5 Computational Statistics 5 Communications in Statistics. Simulation and Computation 4 Stochastic Analysis and Applications 3 Test 3 Australian & New Zealand Journal of Statistics 2 Collectanea Mathematica 2 Journal of Theoretical Probability 2 Statistical Inference for Stochastic Processes 2 Econometric Theory 2 Applied Stochastic Models in Business and Industry 2 Statistical Methodology 2 Thailand Statistician 2 Journal of the Korean Statistical Society 2 Journal of Statistical Theory and Practice 2 Japanese Journal of Statistics and Data Science 1 Lithuanian Mathematical Journal 1 Scandinavian Journal of Statistics 1 The Annals of Statistics 1 International Journal of Mathematics and Mathematical Sciences 1 Journal of Computational and Applied Mathematics 1 Journal of Econometrics 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 Proceedings of the American Mathematical Society 1 Statistica 1 Acta Applicandae Mathematicae 1 Acta Mathematicae Applicatae Sinica. English Series 1 SIAM Journal on Optimization 1 Journal of the Egyptian Mathematical Society 1 Statistica Sinica 1 Lifetime Data Analysis 1 Complexity 1 Bernoulli 1 Vietnam Journal of Mathematics 1 Abstract and Applied Analysis 1 Journal of Inequalities and Applications 1 Journal of Interdisciplinary Mathematics 1 Brazilian Journal of Probability and Statistics 1 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 1 Hacettepe Journal of Mathematics and Statistics 1 Asia-Pacific Financial Markets 1 SORT. Statistics and Operations Research Transactions 1 Statistical Methods and Applications 1 Inverse Problems in Science and Engineering 1 AStA. Advances in Statistical Analysis 1 Electronic Journal of Statistics 1 Journal of Probability and Statistics 1 Sankhyā. 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Probability and Statistics 1 Journal of Mathematical Modeling 1 Cogent Mathematics all top 5 Cited in 17 Fields 230 Statistics (62-XX) 35 Numerical analysis (65-XX) 34 Probability theory and stochastic processes (60-XX) 4 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 3 Operations research, mathematical programming (90-XX) 2 General and overarching topics; collections (00-XX) 2 Combinatorics (05-XX) 2 Biology and other natural sciences (92-XX) 2 Systems theory; control (93-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Special functions (33-XX) 1 Partial differential equations (35-XX) 1 Approximations and expansions (41-XX) 1 Calculus of variations and optimal control; optimization (49-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Computer science (68-XX) 1 Statistical mechanics, structure of matter (82-XX) Citations by Year