Okechukwu Obulezi | Mathematics | Editorial Board Member

Dr. Okechukwu Obulezi | Mathematics | Editorial Board Member

Nnamdi Azikiwe University | Nigeria

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🎓 Early Academic Pursuits

Dr. Okechukwu Obulezi began his academic journey with a focus on statistical sciences, obtaining an ND in Statistics from Abia State Polytechnic in 2006. Driven by his passion, he continued with an HND in Statistics from the same institution, culminating in a strong foundation in quantitative analysis and data interpretation. Pursuing higher learning, he completed a PGD in Statistics at Nnamdi Azikiwe University in 2012, with a thesis on the "Discriminant Analysis of the Nigerian Fixed Assets." His master's thesis focused on "BIC-Based Relative Influence Measure for Outlier Detection and Variable Selection in Regression Analysis," setting the stage for his current Ph.D. in Statistics, where he explores complex statistical methods for predictive and analytical modeling.

💼 Professional Endeavors

Dr. Obulezi’s professional career spans several academic roles, starting as an Instructor at Abia State Polytechnic in 2011, where he advanced to Senior Instructor by 2015. In 2019, he joined Nnamdi Azikiwe University as an Assistant Lecturer in the Statistics Department, quickly progressing to Lecturer II and then Lecturer I by 2023. His responsibilities include teaching specialized courses such as Biostatistics, Statistical Methods, Probability Theory, and Matrix Algebra, where he imparts knowledge to the next generation of statisticians. Beyond teaching, he plays critical roles in advising undergraduates, coordinating seminars and projects, and contributing to departmental committees, such as the Faculty ICT Committee and Faculty Repair and Maintenance Committee.

🔬 Contributions and Research Focus

Dr. Obulezi’s research interests lie at the intersection of probability distributions, machine learning, and statistical modeling, with applications in survival analysis, acceptance sampling, and censored data analysis. His contributions to these fields include publications in high-impact journals, focusing on new statistical models for various real-world applications. Some of his significant research includes new distribution models for engineering, biomedical, and environmental data, optimization of GARCH models for financial volatility, and innovative sampling plans for reliability testing. His publications reflect his commitment to advancing the fields of statistics and machine learning by creating robust, practical solutions for complex data challenges.

🏆 Accolades and Recognition

Dr. Obulezi has earned recognition for his academic and research excellence, serving as a reviewer for several prestigious journals, such as Cogent Engineering, Scientific African, and Alexandria Engineering Journal. His expertise has also led him to contribute as a reviewer for academic book chapters, particularly in mathematical and computer science research. This engagement underscores his prominence as a thought leader in the statistical community and highlights the respect he commands among peers for his critical insights and expertise.

🌍 Impact and Influence

Dr. Obulezi's work in developing statistical models and distributions has had a significant impact, particularly in the areas of biomedicine, engineering, and environmental science. His innovative methodologies have helped refine statistical tools for better data analysis, contributing to improved outcomes in public health research, environmental risk assessment, and financial risk management. His influence also extends to mentoring students and collaborating with other academics, which enriches the statistical field and inspires the next generation of statisticians.

🔮 Legacy and Future Contributions

Looking forward, Dr. Obulezi aims to further his research in advanced statistical modeling, focusing on machine learning applications and data-driven decision-making in complex fields. His commitment to exploring new statistical approaches for big data and predictive analysis places him at the forefront of his field, positioning him to make enduring contributions that will drive innovation in statistical methodologies and applications for years to come.

 

Publications


  • 📄 Parameter estimation for reduced Type-I Heavy-Tailed Weibull distribution under progressive Type-II censoring scheme
  • Authors: Prakash, A., Maurya, R.K., Alsadat, N., Obulezi, O.J.
  • Journal: Alexandria Engineering Journal
  • Year: 2024

  • 📄 Sine generalized family of distributions: Properties, estimation, simulations and applications
  • Authors: Oramulu, D.O., Alsadat, N., Kumar, A., Bahloul, M.M., Obulezi, O.J.
  • Journal: Alexandria Engineering Journal
  • Year: 2024

  • 📄 A more flexible Lomax distribution: Characterization, estimation, group acceptance sampling plan and applications
  • Authors: Ekemezie, D.-F.N., Alghamdi, F.M., Aljohani, H.M., El-Raouf, M.M.A., Obulezi, O.J.
  • Journal: Alexandria Engineering Journal
  • Year: 2024

  • 📄 A new extension of Burr-Hatke exponential distribution with engineering and biomedical applications
  • Authors: Anyiam, K.E., Alghamdi, F.M., Nwaigwe, C.C., Aljohani, H.M., Obulezi, O.J.
  • Journal: Heliyon
  • Year: 2024

  • 📄 Group acceptance sampling plan based on truncated life tests for Type-I heavy-tailed Rayleigh distribution
  • Authors: Nwankwo, M.P., Alsadat, N., Kumar, A., Bahloul, M.M., Obulezi, O.J.
  • Journal: Heliyon
  • Year: 2024

 

Wojciech M Kozlowski | Mathematics | Best Researcher Award

Assoc Prof Dr. Wojciech M Kozlowski | Mathematics | Best Researcher Award

University of New South Wales | Australia

Author Profile

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Early Academic Pursuits 📚

Dr. Walter (Wojciech M.) Kozlowski's journey into academia began at the prestigious Jagiellonian University in Krakow, Poland. He earned his Master of Mathematics in 1977, specializing in Hammerstein operators in Orlicz spaces under the mentorship of Prof. J. Szarski. Continuing his studies at the same institution, he completed his Doctorate in Mathematics in 1981 with a focus on nonlinear operators in spaces of measurable vector-valued functions, guided by Prof. J. Musielak. His deep dive into functional analysis and fixed point theory set the stage for a distinguished career.

Professional Endeavors 🌐

Dr. Kozlowski's professional career is as diverse as it is distinguished. He has held academic posts at universities worldwide, including Jagiellonian University, Southwest Missouri State University, and the University of Adelaide. His role as a Fulbright Scholar at the California Institute of Technology and the University of Southern California further solidified his research credentials. Parallel to his academic career, he has amassed over 20 years of experience in Information and Communication Technology, currently serving as the Principal Network Cloud Architect at Telstra Group. His previous roles include significant positions at Hewlett Packard Enterprise, IBM, and Cable & Wireless Optus.

Contributions and Research Focus 🧪

Dr. Kozlowski's contributions to mathematics and technology are substantial. His research interests span modular function spaces, fixed point theory, nonlinear analysis, semigroups of nonlinear operators, and the geometry of Banach spaces and operator theory. Recently, he has extended his expertise to deep learning and its applications to telecommunications and the digital economy. His monographic book "Modular Function Spaces" and numerous scientific papers are testaments to his profound impact on these fields.

Accolades and Recognition 🏆

Throughout his career, Dr. Kozlowski has received numerous awards and honors. Notably, he was a Fulbright Scholar from 1986 to 1988, and he was honored as an Honorary Professor at the University of Adelaide from 1992 to 1997. His academic achievements include a Habilitation in Mathematics from A. Mickiewicz University in 2016. In the professional realm, he has been recognized as a Distinguished Certified IT Architect by The Open Group and has received certifications from AWS and the Linux Foundation Networking.

Impact and Influence 🌟

Dr. Kozlowski's work has had a lasting impact on both academia and industry. His research in functional analysis and fixed point theory has influenced numerous scholars and researchers. In the technology sector, his leadership in network transformation at Telstra Group is shaping the future of telecommunications. His contributions to large-scale transformation projects have set new standards for operational efficiency and technological innovation.

Legacy and Future Contributions 🌍

Dr. Kozlowski's legacy is characterized by his dual expertise in mathematics and technology. His ongoing research collaborations, particularly with institutions like UNSW and CARMA, ensure that his influence will continue to grow. As a mentor and leader, he has inspired countless students and professionals. His future contributions, especially in the evolving fields of deep learning and telecommunications, promise to further his impact on both scientific knowledge and technological advancement.

 

Publications

 📰On approximation by rational functions in Musielak–Orlicz spaces
Journal: Journal of Approximation Theory
Year: 2024

 📰MODULAR VERSION OF GOEBEL–KIRK THEOREM
Authors: Kozlowski, W.M.
Journal: Topological Methods in Nonlinear Analysis
Year: 2024

 📰CONTRACTIVE SEMIGROUPS IN TOPOLOGICAL VECTOR SPACES, ON THE 100TH ANNIVERSARY OF STEFAN BANACH'S CONTRACTION PRINCIPLE
Authors: Kozlowski, W.M.
Journal: Bulletin of the Australian Mathematical Society
Year: 2023

 📰NOTES ON MODULAR PROJECTIONS
Authors: Kozlowski, W.M.
Journal: Applied Set-Valued Analysis and Optimization
Year: 2022

 📰On modular approximants in sequential convergence spaces
Authors: Kozlowski, W.M.W.
Journal: Journal of Approximation Theory 📰
Year: 2021