Editor Profile
Obulezi Okechukwu Jeremiah, M.Sc.
Lecturer
Present
Nnamdi Azikiwe University
Awka
Nigeria
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- Probability Distributions and Machine Learning Models
- Survival Analysis
- Competing Risks
- Acceptance Sampling
- Optimum Sampling
- Mask Data and Censoring Schemes
- P. O. Chukwuma, H. O. Etaga, P. O. Ibeakuzie, I. C. Anabike, and O. J. Obulezi, “A new reduced quantile function for generating families of distributions,” Annals of Mathematics and Physics, vol. 7, no. 1, pp. 1–15, 2024.
- B. C. Nwankwo, H. O. Obiora-Ilouno, F. A. Almulhim, M. SidAhmed Mustafa, and O. J. Obulezi, “Group acceptance sampling plans for type-i heavy-tailed exponential distribution based on truncated life tests,” AIP Advances, vol. 14, no. 3, 2024.
- B. C. Nwankwo, J. N. Orjiakoh, M. P. Nwankwo, I. M. I. C. Ejiofor, and O. J. Obulezi, “A new distribution for modeling both blood cancer data and median effective dose (ed50) of artemethr-lumefantrine against p. falciparum,” Earthline Journal of Mathematical Sciences, vol. 14, no. 1, pp. 41–62, 2024.
- F. C. Oha, H. O. Etaga, P. O. Ibeakuzie, I. C. Anabike, and O. J. Obulezi, “Power xshanker distribution: Properties, estimation, and applications,” Engineering: Open Access, vol. 2, no. 1, pp. 1–20, 2024.
- C. Anabike, C. P. Igbokwe, C. K. Onyekwere, and O. J. Obulezi, “Inference on the parameters of zubair-exponential distribution with application to survival times of guinea pigs,” Journal of Advances in Mathematics and Computer Science, vol. 38, no. 7, pp. 12–35, 2023.
- E. Q. Chinedu, Q. C. Chukwudum, N. Alsadat, O. J. Obulezi, E. M. Almetwally, and A. H. Tolba, “New lifetime distribution with applications to single acceptance sampling plan and scenarios of increasing hazard rates,” Symmetry, vol. 15, no. 10, p. 1881, 2023.
- E. Q. Chinedu, T. S. Asogwa Emmanuel Chibuogu Belonwu, N. M. Onyeizu, and O. J. Obulezi, “Unraveling emotions: Contemporary approaches in sentiment analysis,” Journal of Sensor Networks and Data Communications(JSNDC), vol. 3, no. 1, pp. 239–246, 2023.
- H. O. Etaga, E. C. Celestine, C. K. Onyekwere, et al., “A new modification of shanker distribution with applications to increasing failure rate data,” Earthline Journal of Mathematical Sciences, vol. 13, no. 2, pp. 509–526, 2023.
- H. O. Etaga, M. P. Nwankwo, D. O. Oramulu, and O. J. Obulezi, “An improved xshanker distribution with applications to rainfall and vinyl chloride data,” Sch J Eng Tech, vol. 9, pp. 212–224, 2023.
- H. O. Etaga, C. K. Onyekwere, D. O. Oramulu, and O. J. Obulezi, “A new modification of rani distribution with more flexibility in application,” Sch J Phys Math Stat, vol. 7, pp. 160–176, 2023.
- H. O. Etaga, M. P. Nwankwo, O. D. Oramulu, I. C. Anabike, and O. J. Obulezi, “The double xlindley distribution: Properties and applications,” Scholars Journal of Physics, Mathematics and Statistics, vol. 10, no. 10, pp. 192–202, 2023.
- H. O. Etaga, K. C. Onyekwere, I. L. Omeje, M. P. Nwankwo, O. D. Oramulu, and O. J. Obulezi, “Estimation of the xrama distribution parameter under complete and progressive type-ii censored schemes,” Scholars Journal of Physics, Mathematics and Statistics, vol. 10, no. 10, pp. 203–219, 2023.
- C. F. Innocent, O. A. Frederick, E. M. Udofia, O. J. Obulezi, and C. P. Igbokwe, “Estimation of the parameters of the power size biased chris-jerry distribution,” International Journal of Innovative Science and Research Technology, vol. 8, no. 5, pp. 423–436, 2023.
- Musa, S. I. Onyeagu, and O. J. Obulezi, “Comparative study based on simulation of some methods of classical estimation of the parameters of exponentiated lindley–logarithmic distribution,” Asian Journal of Probability and Statistics, vol. 22, no. 4, pp. 14–30, 2023.
- Musa, S. I. Onyeagu, and O. J. Obulezi, “Exponentiated power lindley-logarithmic distribution and its applications,” Asian Research Journal of Mathematics, vol. 19, no. 8, pp. 47–60, 2023.
- M. P. Nwankwo, B. C. Nwankwo, and O. J. Obulezi, “The exponentiated power akash distribution: Properties, regression, and applications to infantmortality rate and covid-19 patients’ life cycle,” Annals of Biostatistics Biometric Applications, vol. 5, no. 4, pp. 1–12, 2023.
- M. P. Nwankwo, N. M. Onyeizu, E. C. Asogwa, C. O. Ejike, and O. J. Obulezi, “Prediction of house prices in lagos-nigeria using machine learning models,” European Journal of Theoretical and Applied Sciences, vol. 1, no. 5, pp. 313–326, 2023.
- O. J. Obulezi, I. C. Anabike, G. C. Okoye, C. P. Igbokwe, H. O. Etaga, and C. K. Onyekwere, “The kumaraswamy chris-jerry distribution and its applications,” Journal of Xidian University, vol. 17, no. 6, pp. 575–591, 2023.
- O. J. Obulezi, I. C. Anabike, O. G. Oyo, C. Igbokwe, and H. Etaga, “Marshall-olkin chris-jerry distribution and its applications,” International Journal of Innovative Science and Research Technology, vol. 8, no. 5, pp. 522–533, 2023.
- O. J. Obulezi, N. N. Chidimma, C. P. Igbokwe, and I. C. Anabike, “Statistical analysis on diagnosed cases of malaria and typhoid fever in enugu-nigeria,” GSJ, vol. 11, no. 6, 2023.
- O. J. Obulezi, E. Q. Chinedu, D. O. Oramulu, H. O. Etaga, N. M. Onyeizu, and C. O. Ejike, “Machine learning models for predicting transportation costs inflated by fuel subsidy removal policy in nigeria,” International Research Journal of Modernization in Engineering Technology and Science, vol. 5, no. 9, pp. 1053–1070, 2023.
- O. J. Obulezi, C. P. Igbokwe, and I. C. Anabike, “Single acceptance sampling plan based on truncated life tests for zubair-exponential distribution,” Earthline Journal of Mathematical Sciences, vol. 13, no. 1, pp. 165–181, 2023.
- O. J. Obulezi, B. C. Nwankwo, M. P. Nwankwo, I. C. Anabike, C. P. Igbokwe, and C. N. Igwebudu, “Modeling mortality rate of covid-19 patients in the united kingdom, canada, and the survival rate of covid-19 patients in spain,” Journal of Xidian University, vol. 17, no. 11, pp. 520–538, 2023.
- O. J. Obulezi, E. U. Obiorah, C. I. Anabike, and C. P. Igbokwe, “The exponentiated power chris-jerry distribution: Properties, regression, simulation and applications to infant mortality rate and lifetime of covid-19 patients,” Twist, vol. 18, no. 4, pp. 328–337, 2023.
- F. A. Omoruyi, I. L. Omeje, I. C. Anabike, and O. J. Obulezi, “A new variant of rama distribution with simulation study and application to blood cancer data,” European Journal of Theoretical and Applied Sciences, vol. 1, no. 4, pp. 389–409, 2023.
- H. C. Onuoha, G. A. Osuji, H. O. Etaga, and O. J. Obulezi, “The weibull distribution with estimable shift parameter,” Earthline Journal of Mathematical Sciences, vol. 13, no. 1, pp. 183–208, 2023.
- D. O. Oramulu, H. O. Etaga, A. J. Onuorah, and O. J. Obulezi, “A new member in the lindley class of distributions with flexible applications,” Sch J Phys Math Stat, vol. 7, pp. 148–159, 2023.
- D. O. Oramulu, C. P. Igbokwe, I. C. Anabike, H. O. Etaga, and O. J. Obulezi, “Simulation study of the bayesian and non-bayesian estimation of a new lifetime distribution parameters with increasing hazard rate,” Asian Research Journal of Mathematics, vol. 19, no. 9, pp. 183–211, 2023.
- H. Tolba, C. K. Onyekwere, A. R. El-Saeed, N. Alsadat, H. Alohali, and O. J. Obulezi, “A new distribution for modeling data with increasing hazard rate: A case of covid-19 pandemic and vinyl chloride data,” Sustainability, vol. 15, no. 17, p. 12 782, 2023.
- K. Onyekwere and O. J. Obulezi, “Chris-jerry distribution and its applications,” Asian Journal of Probability and Statistics, vol. 20, no. 1, pp. 16–30, 2022.
- K. Onyekwere, C. N. Okoro, O. J. Obulezi, E. M. Udofia, and I. C. Anabike, “Modification of shanker distribution using quadratic rank transmutation map,” Journal of Xidian University, vol. 16, no. 8, pp. 179–198, 2022.
- U. E. Uzoma and O. J. Obulezi, “An alternative approach to aic and mallow’s cp statistic-based relative influence measures (rims) in regression variable selection,” Open Journal of Statistics, vol. 6, no. 01, p. 70, 2016.
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