| EM-based algorithms for autoregressive models with t-distributed innovations UC Nduka Communications in Statistics-Simulation and Computation 47 (1), 206-228, 2018 | 9 | 2018 |
| Efficient algorithms for robust estimation in autoregressive regression models using Student’s t distribution UC Nduka, IS Iwueze, EC Nwogu Communications in Statistics-Simulation and Computation 49 (2), 355-374, 2020 | 7 | 2020 |
| On The Optimal Choice of Cube and Star Replications in Restricted Second-Order Designs UC Nduka, PE Chigbu Communications in Statistics-Theory and Methods 43 (19), 4195-4214, 2014 | 5 | 2014 |
| Robust estimation using multivariate t innovations for vector autoregressive models via ECM algorithm UC Nduka, TE Ugah, CH Izunobi Journal of Applied Statistics 48 (4), 693-711, 2021 | 4 | 2021 |
| Fitting polynomial trend to time series by the method of Buys-Ballot estimators UC Nduka, SI Iwueze, EC Nwogu Communications in Statistics-Theory and Methods 46 (9), 4520-4538, 2017 | 4 | 2017 |
| An extended Markov-switching model approach to latent heterogeneity in departmentalized manpower systems EO Ossai, UC Nduka, MS Madukaife, AU Udom, SO Ugwu Communications in Statistics-Theory and Methods 53 (19), 6957-6976, 2024 | 2 | 2024 |
| Efficient and robust estimation for autoregressive regression models using shape mixtures of skewt normal distribution UC Nduka Methodology and Computing in Applied Probability 24 (3), 1519-1551, 2022 | 2 | 2022 |
| Effects of Prioritized Input on Human Resource Control in Departmentalized Markov Manpower Framework EO Ossai, MS Madukaife, AU Udom, UC Nduka, TE Ugah Methodology and Computing in Applied Probability 25 (1), 37, 2023 | 1 | 2023 |
| A Principal Components Based Moment Generating Function Test for Multivariate Normality MS Madukaife, EO Ossai, UC Nduka, TE Ugah Journal of the Iranian Statistical Society 22 (1), 29-47, 2024 | | 2024 |
| Estimation for vector autoregressive model under multivariate skew-t-normal innovations UC Nduka, EO Ossai, MS Madukaife, TE Ugah Statistical Modelling, 1471082X231224910, 2024 | | 2024 |
| Modeling serially correlated heavy-tailed data with some missing response values using stochastic EM algorithm UC Nduka, IS Iwueze, CC Nwaigwe Communications in Statistics: Case Studies, Data Analysis and Applications 8 …, 2022 | | 2022 |
| ON THE VOLATILITY OF RETURNS OF NIGERIAN STOCK EXCHANGE INDEX UC Nduka Global Journal of Mathematical Sciences 9 (2), 73, 2010 | | 2010 |
| Optimal Orthogonal Second-order Designs UC Nduka Journal of the Nigerian Association of Mathematical Physics 17, 359-362, 2010 | | 2010 |
Polycarp ChigbuProfessor of Statistics, University of Nigeria在 unn.edu.ng 的电子邮件经过验证
Polycarp ChigbuProfessor of Statistics, University of Nigeria在 unn.edu.ng 的电子邮件经过验证
Chinyeaka Hostensia IzunobiFederal University of Technology, Owerri.在 futo.edu.ng 的电子邮件经过验证