Ray Okafor

University of Lagos

Publishing since 1987, latest 2018

Statistics and Probability
Economics and Econometrics
Artificial Intelligence
Finance
Genetics
Management Science and Operations Research

Their record on OpenAlex

Publications: 121987–2018
Citations: 76to those papers
h-index: 3i10-index 1
Field-weighted impact: 0.161.00 is the world average
World top 10%: 0%0 of 12 scored papers
Open access: 50%6 papers free to read

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Publications

12 in all

The Gamma-Rayleigh Distribution and Applications to Survival Data
2018Nigerian Journal of Basic and Applied SciencesJournalOpen accessSenior author5 citations10.4314/njbas.v25i2.14
Poisson-generalized gamma empirical Bayes model for disease mapping
2018AFRREV STECH An International Journal of Science and Technology

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Statistics and Probability975%
Economics and Econometrics542%
Artificial Intelligence325%
Finance325%
Genetics18%
Management Science and Operations Research18%
Sociology and Political Science18%
Statistics, Probability and Uncertainty18%
Water Science and Technology18%

Life Sciences
Physical Sciences
Social Sciences

Topics most written on

Statistical Distribution Estimation and Applications4
Advanced Statistical Methods and Models3
Bayesian Methods and Mixture Models3
Census and Population Estimation3
Complex Systems and Time Series Analysis3
Financial Risk and Volatility Modeling3
Statistical Methods and Bayesian Inference3
HIV/AIDS Impact and Responses2
Market Dynamics and Volatility2
Genetic and phenotypic traits in livestock1
Income, Poverty, and Inequality1
Probabilistic and Robust Engineering Design1

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where they publish

Model Assisted Statistics and Applications2
AFRREV STECH An International Journal of Science and Technology1
American journal of mathematics and statistics1
International Journal of Probability and Statistics1
International Journal of Statistics and Analysis1
Journal of Applied Statistics1

Development goals addressed

From each paper’s title and abstract

1No poverty1
8Decent work and economic growth1
11Sustainable cities and communities1
13Climate action1

Most cited

Maximum likelihood estimation from incomplete data
Journal of Applied Statistics
198754 citations
A multivariate generalized Poisson distribution
Journal of Statistical Theory and Applications
20116 citations
The Gamma-Rayleigh Distribution and Applications to Survival Data
Nigerian Journal of Basic and Applied Sciences
20185 citationsOpen access · Diamond
A Bayesian model for inference on population proportions

An assessment of predictive performance of Zellner’s g-priors in Bayesian model averaging

2018Model Assisted Statistics and ApplicationsJournalSenior author0 citations10.3233/mas-170418

Estimating Historical Volatility via Dynamical System

2015American journal of mathematics and statisticsJournalOpen access0 citations

Conditional Variance Parameters in Symmetric Models

2014International Journal of Probability and StatisticsJournalOpen accessSenior author1 citation

Time Series Analysis of Empirical Regularities in Nigeria Banking Sector

2013International Journal of Statistics and AnalysisJournalOpen accessSenior author0 citations

A Bayesian model for inference on population proportions

2012Wiley Interdisciplinary Reviews Computational StatisticsJournalFirst author3 citations10.1002/wics.1218

A multivariate generalized Poisson distribution

2011Journal of Statistical Theory and ApplicationsJournalFirst author6 citations

Maximum likelihood estimation from incomplete data

1987Journal of Applied StatisticsJournalFirst authorCorresponding54 citations10.1080/02664768700000003

Journal of Sociological Research1

Journal of Statistical Theory and Applications1

How it can be read

50% free to read

Diamond 2 · 17%Free to read and to publish
Hybrid 1 · 8%Open in a subscription journal
Green 3 · 25%A copy in a repository
Closed 6 · 50%Behind a paywall

Wiley Interdisciplinary Reviews Computational Statistics11