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Spline Smoothing of Time Series Observation
Nigeria

Biography

Samuel Olorunfemi Adams is a don of Non – parametric Regression and Spline smoothing Regression in the Department of Statistics, University of Abuja, Nigeria. He had his undergraduate studies at the University of Abuja, where he graduated as the second overall best graduating student in Statistics in year 2000. He subsequently went to the University of Ilorin, Kwara state and received his M.Sc. and Ph.D. degrees in Statistics. As a Statistics teacher, Statistical Consultant, Data Analyst, Researcher and SPSS facilitator, he is widely known for his contributions in the field of Non – Parametric Statistics.
Dr. Adams started his career in University of Abuja in 2004 and rose to the rank of Lecturer 1 in 2012. He later served as the departmental Secretary, department of Statistics, University of Abuja (206-2010); and departmental examination officer, department of Statistics, University of Abuja, (2014 – 2018). He is also an SPSS instructor with Digital Bridge Institute (DBI) an ICT training arm of Nigeria Communication Commission (NCC). He is a registered member of Nigerian Statistical Association (NSA), Science Association of Nigeria (SAN) and Professional Statisticians Society of Nigeria (PSSN). Dr. Adams has well over 50 academic publications comprising of local and international journals as well as over 10 papers presented in learned conferences in and outside Nigeria.

Activities

Employment (1)

University of Abuja: Abuja, FCT, NG

2004-01-22 to present | Senior Lecturer (Department of Statistics)
Employment
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Education and qualifications (1)

University of Ilorin: Ilorin, Kwara State, NG

2014-10-05 to present | PhD (Department of Statistics)
Education
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Professional activities (2)

Nigerian Statistical Association: Abuja, FCT, NG

2010-08-14 to present | Full Member (Statistics)
Membership
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Digital Bridge Institute: Abuja, Utako, NG

2017-01-20 | SPSS trainer (Training and Development)
Distinction
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Works (38)

Analysing the Trend and Variability in Corruption Perception: A Study of Sub-Sahara African Countries from 2012-2020

Dutch Journal of Finance and Management
2025-03-24 | Journal article
Contributors: Chima Paul; Samuel Olorunfemi Adams
Source: check_circle
Crossref

Nigeria Exchange Rate Volatility: A Comparative Study of Recurrent Neural Network LSTM and Exponential Generalized Autoregressive Conditional Heteroskedasticity Models

Journal of Artificial Intelligence and Big Data
2024-06-28 | Journal article
Part of ISSN: 2771-2389
Contributors: Samuel Olorunfemi Adams; John Innocent Uchema
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Mathematical Modeling of the Price Volatility of Maize and Sorghum between 1960 and 2022

Trends Journal of Sciences Research
2023-11-03 | Journal article
Part of ISSN: 2377-8091
Contributors: Samuel Olorunfemi Adams; Mohammed Anono Zubair; Michael Franklin Ezike
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Effect of Total Active Voice Call Subscribers on Economic Growth in Nigeria: An Application of Cross-Sectional Panel Data Model

Malaysian Journal of Science and Advanced Technology
2023-10-22 | Journal article
Contributors: Samuel Olorunfemi Adams; Davies Oluwatobi Emmanuel; Chima Paul
Source: check_circle
Crossref

The effect of e-government development indices (EGDI) on corruption perception index in sub-Sahara Africa: A panel data analysis

African Journal of Science, Technology, Innovation and Development
2023-10-03 | Journal article
Part of ISSN: 2042-1338
Part of ISSN: 2042-1346
Contributors: Chima Paul; Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

E-government development indices and the attainment of United Nations sustainable development goals in Africa: A cross-sectional data analysis

European Journal of Sustainable Development Research
2023-08-11 | Journal article
Contributors: Samuel Olorunfemi Adams; Chima Paul
Source: check_circle
Crossref

Modeling the Effect of Population Density and Some Related Factors on Covid-19 Pandemic in Nigeria: An Application of Count Data Regression

African Journal of Mathematics and Statistics Studies
2023-06-06 | Journal article | Conceptualization
Part of ISSN: 2689-5323
Contributors: Dr. Samuel Olorunfemi Adams; Davies Abiodun Obaromi ; Ibrahim Aminu
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Predictive Modeling of Nigeria’s Currency in Circulation Using X-12 Autoregressive Integrated Moving Average Method

Dutch Journal of Finance and Management
2023-06-04 | Journal article
Part of ISSN: 2542-4750
Contributors: Muhammad Ardo Bamanga; Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

On some techniques of selecting spline smoothing parameters for a correlated dataset with autocorrelation structure in the residual

World Journal of Advanced Research and Reviews
2023-02-28 | Journal article
Part of ISSN: 2581-9615
Contributors: Samuel Olorunfemi Adams; Mohammed Anono Zubair
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

The Efficiency of the Proposed Smoothing Method over the Classical Cubic Smoothing Spline Regression Model with Autocorrelated Residual

Journal of Mathematics and Statistics Studies
2023-02-23 | Journal article
Part of ISSN: 2709-4200
Contributors: Samuel Olorunfemi Adams; And Omorogbe J. Asemota
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Modeling the Volatility for Some Selected Beverages Stock Returns in Nigeria (2012-2021): A GARCH Model Approach

Matrix Science Mathematic
2022-11-11 | Journal article | Conceptualization, Formal analysis
Contributors: Dr. Samuel Olorunfemi Adams; Tanimu Mohammed ; Haruna Umar Yahaya
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Modeling and Forecasting Cryptocurrency Returns and Volatility: An Application of GARCH Models

Universal Journal of Finance and Economics
2022-11-10 | Journal article
Part of ISSN: 2832-4587
Contributors: Dr. Samuel Olorunfemi Adams; Haruna Umar Yahaya; John Sunday Oyinloye; Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Effect of Blended Learning Models on Students’ Academic Achievement and Retention in Science Education

Eurasian Journal of Science and Environmental Education
2022-11-07 | Journal article
Contributors: Tope Gloria Olatunde-Aiyedun; Samuel Olorunfemi Adams
Source: check_circle
Crossref

Artificial Neural Network Analysis of Some Selected KDD CUP 99 Dataset for Intrusion Detection

Acta Informatica Malaysia
2022-08-12 | Journal article | Conceptualization, Formal analysis
Contributors: Dr. Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

The Role of Some Social Infrastructures indicators on Economic Growth of Nigeria: A Causality Analysis Approach

Economic Growth and Environment Sustainability (EGNES)
2022-08-11 | Journal article | Conceptualization
Contributors: Dr. Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Comparative Study of the Error Trend and Seasonal Exponential Smoothing and ARIMA Model using COVID-19 Death Rate in Nigeria

International Journal of Natural Sciences Research
2022-06-23 | Journal article
Part of ISSN: 2311-4746
Part of ISSN: 2311-7435
Contributors: Dr. Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams
grade
Preferred source (of 2)‎

Spatial Profiles and Determinants of Multidimensional Energy Poverty in Rural Nigeria

International Journal of Energy Economics and Policy
2022-05-18 | Journal article | Writing - original draft
Contributors: Dr. Samuel Olorunfemi Adams
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams
grade
Preferred source (of 2)‎

Economic Impact of Some Determinant Factors of Nigerian Inflation Rate

Trends Journal of Sciences Research
2022-04-16 | Journal article
Part of ISSN: 2377-8091
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams
grade
Preferred source (of 2)‎

Goodness of fit test of an autocorrelated time series cubic smoothing spline model

Journal of the Nigerian Society of Physical Sciences
2021 | Journal article
EID:

2-s2.0-85115079257

Part of ISSN: 27144704 27142817
Contributors: Adams, S.O.; Obaromi, D.A.; Irinews, A.A.
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams via Scopus - Elsevier
grade
Preferred source (of 2)‎

Modelling the number of household visit to health care centres in some nigeria communities using count data regression models

Journal of Biostatistics and Epidemiology
2021 | Journal article
EID:

2-s2.0-85108576193

Part of ISSN: 2383420X 23834196
Contributors: Adams, S.O.; Obaromi, D.A.; Rauf, R.I.
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams via Scopus - Elsevier

An Evaluation of the Chemical Composition of Soft Drinks in Nigeria: A Principal Component Analysis Approach

Advances in Modelling and Analysis A
2020 | Journal article
Contributors: Samuel Olorunfemi Adams; Rafiu Olayinka Akano; Rauf Ibrahim Rauf
Source: check_circle
Web of Science Researcher Profile Sync

Comparative Study of GCV-MCP Hybrid Smoothing Methods for Predicting Time Series Observations

American Journal of Theoretical and Applied Statistics
2020 | Journal article
Part of ISSN: 2326-8999
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Modeling COVID-19 Cases in Nigeria Using Some Selected Count Data Regression Models

International Journal of Healthcare and Medical Sciences
2020 | Journal article
Contributors: Samuel Olorunfemi Adams; Muhammad Ardo Bamanga; Samuel Olayemi Olanrewaju; Haruna Umar Yahaya; Rafiu Olayinka Akano
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Web of Science Researcher Profile Sync

Panel Data Analysis on Corporate Effective Tax Rates of Some Listed Large Firms in Nigeria

Dutch Journal of Finance and Management
2020 | Journal article
Contributors: Samuel Olorunfemi Adams; Philomena Omoshade Balogun
Source: check_circle
Web of Science Researcher Profile Sync
grade
Preferred source (of 2)‎

An Empirical Comparison of Computer-Assisted Instruction and Field Trip Instructional Methods on Teaching of Basic Science and Technology Curriculum in Nigeria

International Journal of Social Sciences & Educational Studies
2020-12-10 | Journal article | Conceptualization, Formal analysis
Contributors: Dr. Samuel Olorunfemi Adams; Uchenna Rachel Onwandi
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

A New Smoothing Method for Time Series Data in the Presence of Autocorrelated Error

Asian Journal of Probability and Statistics
2019 | Journal article
Contributors: Samuel Olorunfemi Adams; Rueben Adeyemi Ipinyomi
Source: check_circle
Web of Science Researcher Profile Sync

Modelling Nigeria Naria Exchange Rate against Some Selected Country’s Currencies Volatility: Application of GARCH Model

Asian Journal of Probability and Statistics
2019 | Journal article
Contributors: Ajayi Abdulhakeem; Samuel Olorunfemi Adams; Rafiu Olayinka Akano
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Web of Science Researcher Profile Sync

Nigeria Government’s Expenditure on Economic and Social Service Development: A Canonical Correlation Analysis Approach

Archives of Current Research International
2019 | Journal article
Contributors: Rafiu Olayinka Akano; Samuel Olorunfemi Adams
Source: check_circle
Web of Science Researcher Profile Sync

Seasonal Autoregressive Integrated Moving Average (SARIMA) Model for the Analysis of Frequency of Monthly Rainfall in Osun State, Nigeria

Physical Science International Journal
2019 | Journal article
Contributors: Samuel Olorunfemi Adams; Bello Mustapha; Auta Irinew Alumbugu
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Web of Science Researcher Profile Sync

Impact of Foreign Direct Investment on Employment and Unemployment Rate in Nigeria: Application of Vector Autoregression(VAR) Models (1960-2014)

Asian Journal of Advanced Research and Reports
2019-09-19 | Journal article
Part of ISSN: 2582-3248
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Principal Component Analysis of Nigerian Economy from 2006 – 2017

Asian Journal of Advanced Research and Reports
2019-09-05 | Journal article
Part of ISSN: 2582-3248
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams

Principal Component Analysis of Crime Data in Gwagwalada Area Command, Abuja from 1995 – 2015

American Journal of Theoretical and Applied Statistics
2017 | Journal article
Contributors: Nasiru Mukaila Olakorede
Source: check_circle
Web of Science Researcher Profile Sync

Smoothing Parameter Estimation of The Generalized CrossValidation And Generalized Maximum Likehood

IOSR Journal of Mathematics
2017 | Journal article
Contributors: Adams, S. O; Yahaya, H.U.; Nasiru O. M.
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An ideas revolution

Economist (United Kingdom)
2015 | Journal article
EID:

2-s2.0-84946099638

Part of ISSN: 00130613
Contributors: Adams, S.
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams via Scopus - Elsevier

A patriot

Economist
2008 | Journal article
EID:

2-s2.0-76649094227

Part of ISSN: 00130613
Contributors: Adams, S.
Source: Self-asserted source
Dr. Samuel Olorunfemi Adams via Scopus - Elsevier

Effect of Inductive and Deductive Teaching Methods on Students’ Performance in Basic Science Among Junior Secondary Schools Students: A Gender Study

Source: check_circle
Web of Science Researcher Profile Sync

Modeling the effect of crude oil production and other factors on Nigeria's economy: an autoregressive distributed lag approach

Source: check_circle
Web of Science Researcher Profile Sync

Modelling and Forecasting Seasonal Behavior of Rainfall in Abuja, Nigeria; A SARIMA Approach

Source: check_circle
Web of Science Researcher Profile Sync