University Librarian
IWUNDU MARY PASCHAL
- Details
- Published: 07 December 2021
(A) PERSONAL DATA:
1. FULL NAME: IWUNDU, MARY PASCHAL
2. DATE AND PLACE OF BIRTH: August 26, 1971
St. Lukes Hospital Anua, Uyo, Akwa Ibom State
3. STATE OF ORIGIN/NATIONALITY: Akwa Ibom/Nigerian
STATE BY MARRIAGE Imo
4. PERMANENT HOME ADDRESS: No. 14 Chief Alex Wele Avenue,
Nkpolu Phase II, Port Harcourt, Rivers
State.
5. CURRENT POSTAL ADDRESS/ E-MAIL: Dept.of Mathematics and Statistics
University of Port Harcourt, Port Harcourt, Rivers State
This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.
6. MARITAL STATUS/NO. OF CHILDREN: Married (4 children)
7. NAMES/AGES OF CHILDREN: Iwundu, Chinwendu Paschal (22 Years)
Iwundu, Chukwudi Paschal (20 Years)
Iwundu, Chisomaga Paschal (14 Years)
Iwundu, Noble Paschal (9 Years)
8. NEXT OF KIN/RELATIONSHIP: Iwundu, Paschal Chuka (Husband)
7. DATE OF FIRST APPOINTMENT: November 1, 1995
8. STATUS AT FIRST APPOINTMENT: Graduate Assistant
9 PLACE OF FIRST APPOINTMENT: University of Uyo
10. TRANSFER OF SERVICE June 2, 2003
11. DATE OF PRESENT APPOINTMENT: June 2, 2003
12. PLACE OF PRESENT APPOINTMENT: University of Port Harcourt
13. PRESENT STATUS: Professor
14. DATE OF LAST PROMOTION: October 1, 2017
15. ADJUNCT APPOINTMENT: Rivers State University of Science and
Technology, Rivers State (2015/2016 academic session)
16. SABBATICAL APPOINTMENT: University of Uyo (January 2016-January 2017)
(B) ACADEMIC AND PROFESSIONAL BACKGROUND
- EDUCATIONAL INSTITUTION ATTENDED
- PRIMARY EDUCATIONAL INSTITUTION ATTENDED WITH DATES:
Christ the King Primary School, No. 2 Barracks Road, Uyo, Akwa Ibom State
|
1977-1982 |
- SECONDARY EDUCATIONAL INSTITUTION ATTENDED WITH DATES:
Immaculate Conception Secondary School, Itak-Ikono, Akwa Ibom State. |
1982-1988 |
- HIGHER EDUCATIONAL INSTITUTIONS ATTENDED WITH DATES:
University of Uyo, Uyo, Akwa Ibom State. |
1989-1994 |
University of Nigeria, Nsukka, Enugu State. |
1997-1999 |
University of Nigeria, Nsukka, Enugu State. |
2003-2008 |
(b) ACADEMIC QUALIFICATIONS WITH DATES:
(i) First School Leaving Certificate - 1982
(ii) WAEC Senior School Certificate - 1988
(i) B.Sc. (Hons) Statistics (Second Class Upper division) - 1994
(ii) M.Sc. (Statistics) 5 points on 5-point scale - 1999
(iii) Ph.D. (Statistics) “A” Grade - 2008
(c) PROJECT/RESEARCH SUPERVISORS
(i) Prof. M. U. Umoren (B.Sc. level)
(ii) Prof. I. B. Onukogu (M.Sc. level)
(iii) Prof. I. B. Onukogu and Prof. P. E. Chigbu (Ph.D level)
(C) COMMITTEES/COMMUNITY SERVICE WITH THE UNIVERSITY OF PORT HARCOURT
- Member, Departmental Board 2003 Till Date
- Member, Faculty Board 2003 Till Date
- Member, College Assembly 2014 -2015
- Member, ISLT Academic Board 2011
- Member/Secretary, Departmental Admission Committee (Post-graduate) 2008-2009
- Member, Departmental Admission Committee (Post-graduate) 2010 Till Date
- Member/Secretary, B.Sc Curriculum Review committee 2004/2005 Session
- Member/Secretary, B.Sc Curriculum Review committee 2007/2008 Session
- Member, B.Sc Curriculum Review committee 2014/2015 Session
- Member, PGD Curriculum Development 2013/2014 Session
- Departmental Time table officer 2008/2009
- Faculty Time table Committee member 2008/2009
- Post-Graduate Programme coordinator 2003-2011
- Departmental Welfare Officer 2004-2007
- Result Computation officer 2006/2007 Session
- Officer in charge of Faculty Brochure (Maths/Statistics aspects) 2010
- Officer in charge of Proposal for Ph.D coursework in Statistics and Mathematics 2010
- Review of Report of University Research Strategies
and Policy Committee (Maths/Statistics aspects) 2010
- A look on the structure and design of the faculties, CNAS 2013
- Member, College Result Computation Committee, CNAS 2013/2014 Session
- Head of Department ( First Term) January 2012 – January 2014
- Head of Department (Second Term) January 2014 – January 2016
- Member, University-Wide Accreditation Committee 2018 till date
- Chairman, Departmental Post-Graduate Programme 2018 till date
- Member, Faculty Welfare Committee 2021
- Chairman, Board of ICTC, University of Port Harcourt. 2021 till date
- Member, Vice-Chancellor’s Advisory Committee on University of Port Harcourt-wide Appointments 2021 till date
- Editor, SCIENTIA AFRICANA (Faculty of Science Journal, University of Port Harcourt)
2020 till date
(D) MEMBERSHIP OF PROFESSIONAL BODIES
(i) Nigerian Statistical Association
(ii) Nigerian Mathematical Society
(iii) American Statistical Association
(iv) Optimization Group, Nigeria
(v) International Research and Development Institute
(vi) ResearchGate
(vii) Publons
(E) PROFESSIONAL ACTIVITIES
- Reviewer, SCIENTIA AFRICANA.
- Editorial Board Member, International Journal of Research and Advancement in Physical Sciences.
- Member, Nigerian Statistical Association.
- Member, Nigerian Mathematical Society.
- Member, Nigerian Mathematical Society.
- Member, Optimization Group, Nigeria.
- Treasurer, Optimization Group, Nigeria.
- Member, ResearchGate: The professional network for Scientists.
- Member, Publons: The home of expert Peer Review.
- Potential Reviewer, SCIENCE ALERT.
- Reviewer, Journal of Statistical Applications and Probability.
- Reviewer, Journal of Advances in Mathematics and Computer Science.
- Associate Editor, Journal of Science and Technology Research.
- Editor/Reviewer, International Journal of Physical Science.
- Academic Adviser to Students
(F) RESEARCHES UNDERTAKEN
Completed Research:
- Constuction of an algorithm for obtaining global optimizers of response functions.
- Development of Combinatorial algorithm for obtaining D- optimal designs.
- Various applications of the Combinatorial algorithm.
- Development of Line search algorithms for use in solving Linear Programming problems- Experimental design approach.
- Application of Segmented Modeling to Linear Programming problems- Experimental design approach.
- Factorial analysis of effect of feed-type on pond-raised fish (Real life experiment)
- D-Optimality: Properties and Rules of Construction.
- Modified Quick Convergent Inflow Algorithm (MQCIA) for Solving Linear Programming problems based on variance of predicted response.
- A new method of constructing the initial design for use in variance exchange algorithms.
- The behaviour of D-optimal exact designs on first order polynomial models under changing regression polynomials.
- On partial replication of vertex, star and centre points in Central Composite designs.
- Adequacy of Variable Selection Techniques on Model Building.
- More on partially replicated points in Central Composite designs and other related designs.
- D-optimally constructed design under the variation of non-D-optimality criteria for varying regression polynomials.
- The Effects of Addition of Center Points on the Optimality of Box-Benhken and Box-Wilson Second-Order Designs.
- Alternative Second-Order N-Point Spherical Response Surface Methodology Designs and their Efficiencies.
- Useful Numerical Statistics of Some Response Surface Methodology Designs.
- Design Filtering and Reconstruction: A Procedure for Sequentially Locating D-Optimal Design Measures.
- Competitive assessment of two Variance Weighted Gradient (VWG) methods with some standard Gradient and Non-Gradient optimization methods.
- Simultaneous Optimization of Response Surfaces: Using Variance Weighted Gradient.
- Preferences of the Equiradial designs under changing axial distances and the relationship to the Central Composite Design.
- The precision of full polynomial response surface designs on models with missing coefficients.
- An application of categorical analysis of variance in nested arrangements.
- Sequential and Non-sequential generation of third order response surface designs
- Efficiency of repaired resolution central composite design to standard central composite design
(G) M.SC DISSERTATIONS SUPERVISED
SUCCESSFULLY EXAMINED
- CONSTRUCTION OF INITIAL DESIGN FOR USE IN VARIANCE EXCHANGE ALGORITHM By ABOLAJI Emmanuel: G2006/M.Sc./STAT/FT/091. (JULY 2010)
- A QUICK CONVERGENT INFLOW ALGORITHM FOR SOLVING LINEAR PROGRAMMING PROBLEMS By ODIAKOSA Osita Emmanuel: G2007/M.Sc./STAT/FT/114. (JULY 2010)
- CONSTRUCTION OF E-OPTIMAL DESIGNS USING A COMBINATORIAL METHOD
By OHAERI Jerry Ogbonna: G2005/M.Sc./STAT/FT/037. (JULY 2010)
- SEGMENTATION OF THE DESIGN REGION FOR THE QUICK CONVERGENT INFLOW ALGORITHM (QCIA) FOR SOLVING LINEAR PROGRAMMING PROBLEMS By HEZEKIAH Jackson Ezekiel: G2008/M.Sc./STAT/FT/092. (JULY 2011)
- IMPOSING D-OPTIMALITY CRITERION ON THE DESIGN DESIGN REGIONS OF THE CENTRAL COMPOSITE DESGNS By OTARU Olawole Afegbah Paul: G2009/M.Sc./STAT/FT/149. (MARCH 2012)
- D-OPTIMALITY PROPERTIES AND RULES OF CONSTRUCTION By ALBERT-UDOCHUKWUKA Bolanle: G2009/M.Sc./STAT/FT/142. (JUNE 2014)
- THE EFFICIENCIES OF TWO LINE SEARCH ALGORITHMS FOR SOLVING LINEAR PROGRAMMING PROBLEMS By NDIYO Ifiok Efiong: G2012/M.Sc./STAT/FT/206. (MARCH 2015)
- RULES FOR IDENTIFYING STARTING DESIGNS FOR USE IN THE QUICK CONVERGENT INFLOW ALGORITHM By EKPO Sunday Uzodinma: G2011/M.Sc./STAT/FT/186. (APRIL 2015)
- ADEQUACY OF VARIABLE SELECTION TECHNIQUE IN MODEL BUILDING By OMOSIONI Peter Efezino: G2010/M.Sc./STAT/FT/163. (JUNE 2015)
- PARTIALLY REPLICATED FACTORIAL, STAR, AND CENTER RUNS IN CENTRAL COMPOSITE DESIGN By FRANK Nwoburuoma Augustina: G2011/M.Sc./STAT/FT/191. (APRIL 2015)
- THE PRECISION OF FULL POLYNOMIAL RESPONSE SURFACE DESIGNS ON MODELS WITH MISSING COEFFICIENTS By Jaja, E. I. (NOVEMBER 2017)
- PREFERENCES OF THE EQUIRADIAL DESIGNS UNDER CHANGING AXIAL DISTANCES AND THE RELATIONSHIP TO THE CENTRAL COMPOSITE DESIGN By ONU Obineke Henry: G2014/M.Sc./STAT/FT/238 (MAY 2018)
- AN APPLICATION OF CATEGORICAL ANALYSIS OF VARIANCE IN NESTED ARRANGEMENTS By Anyanwu, C. O. (MAY 2018)
- CENTER RUNS FOR SPHERICAL, ROTATABLE AND NON-ROTATABLE CENTRAL COMPOSITE DESIGNS CCDs AND THE EFFECTS ON ALPHABETIC OPTIMALITY CRITERIA (2018)
- Sequential and Non-Sequential Third-Order Response Surface Designs and their efficiencies by Agadaga Greg (2021).
- Efficiency of repaired resolution central composite design to standard central composite design by Bridget Nwachukwu (2021).
(H) Ph.D THESIS SUPERVISED
SUCCESSFULLY EXAMINED
- SIMULTANEOUS OPTIMAIZATION OF RESPONSE SURFACES USING VARIANCE WEIGHTED GRADIENT (VWG) METHOD By OTARU Olawole Afegbah Paul: G2012/Ph.D./STAT/FT/217. (JANUARY 2017)
- ROBUSTNESS OF MODIFIED CENTRAL COMPOSITE DESIGNS IN THE PRESENCE OF MISSING OBSERVATIONS By JAJA, ENYINNA IDAWARISIA (JUNE 2021)
(I) OTHER COMPLETED SUPERVISED PROJECTS:
- OVER 20 POST-GRADUATE DIPLOMA RESERACH PROJECTS.
- OVER 50 UNDERGRADUATE RESERACH PROJECTS.
(J) ONGOING RESEARCH:
- Missing observations in optimal design problems.
- On the choice of First and Second order Response Surface Designs.
- Missing regression coefficients optimal design problems and robust statistics.
- On optimality properties of equiradial designs and new optimality measures for comparing designs.
- Suitability of optimal designs on distorted design regions.
- The applications of theory of optimal experimental design to real life problems
especially in the field of Response Surface.
- Optimality on distorted regions
- Optimality in the presence of missing design points
(K) RESEARCH FOCUS:
Optimal Experimental Designs, Response Surface Methodology.
(L) OTHER ACTIVITIES OUTSIDE THE UNIVERSITY/EXTERNAL EXAMINATION
- LOC SECRETARY, 27TH ANNUAL CONFERENCE OF NIGERIAN MATHEMATICAL SOCIETY MAY, 2008
- MEMBER/ TREASURER, AKWA IBOM COMMUNITY, UNIPORT 2008 TILL DATE
- ACADEMIC CONSULTANT/ADVISER TO BEULAH INTERNATIONAL SCHOOL, EKOM IMAN ETINAN LGA AKWA IBOM STATE 2010/2011 SESSION
- INTERIM TREASURER, PTA, FGGC, ABULOMA 2012/2013 ACADEMIC SESSION
- CONFERENCE ORGANIZING COMMITTEE MEMBER, 1ST INTERNATIONAL CONFERENCE (OF THE OPTIMIZATION GROUP, NIGERIA) ON RECENT DEVELOPMENTS IN OPTIMIZATION METHODS AND OPTIMAL EXPERIMENTAL DESIGNS . NOVEMBER, 2012
- TREASURER, OPTIMIZATION GROUP, NIGERIA 2012 TILL DATE
- RAPPORTEUR, 34TH ANNUAL CONFERENCE OF THE NIGERIAN, OWERRI, IMO STATE SEPTEMBER 2011
- INVITED STATISTICIAN (BY NIGERIAN STATISTICAL ASSOCIATION) TO PUBLIC HEARING ON CHARTERED INSTITUTE OF STATISTICIANS OF NIGERIA (CISON) BILL AT THE NIGERIAN SENATE CHAMBERS. 2015
- EXTERNAL EXAMINER: EXAMINATION OF M.Sc THESIS IN STATISTICS FOR THE AWARD OF M.Sc DEGREE IN STATISTICS, UNIVERSITY OF UYO. APRIL 27, 2014
- EXTERNAL EXAMINER: EXAMINATION OF UNDER-GRADUATE PROJECTS FOR THE AWARD OF B.Sc DEGREE IN STATISTICS, UNIVERSITY OF UYO. JUNE 23, 2014
- EXTERNAL EXAMINER: EXAMINATION OF UNDER-GRADUATE PROJECTS FOR THE AWARD OF B.Sc DEGREE IN STATISTICS, UNIVERSITY OF UYO. APRIL 17, 2015
- EXTERNAL EXAMINER: EXAMINATION OF UNDER-GRADUATE PROJECTS FOR THE AWARD OF B.Sc. DEGREE IN STATISTICS, UNIVERSITY OF UYO. JANUARY 2016
- PARTICIPANT/REPRESENTATIVE, UNIVERSITY OF PORT HARCOURT: UNESCO/NMS CHAIR PROGRAMME (ABUJA) JANUARY 2016
- FACILITATOR STATISTICIAN: TRAINING PROGRAMME OF STAFF, DEPARTMENT OF PETROLEUM RESOURCES, HELD AT MINA HOTELS, PORT HARCOURT. SEPTEMBER 2016
- FACILITATOR STATISTICIAN: TRAINING PROGRAMME OF STAFF, DEPARTMENT OF PETROLEUM RESOURCES, HELD AT MINA HOTELS, PORT HARCOURT. OCTOBER 2016
- CONSULTING/CO-SUPERVISOR TO A PhD IN STATISTICS, (NAME: HLEI AEAD) DEPARTMENT OF MATHEMATICS, LA TROBE UNIVERSITY, MELBOURNE, AUSTRALIA ON THE CONSTRUCTION OF MORE EFFICIENT COMPOSITE DESIGNS FOR QUADRATIC RESPONSE SURFACES AND EXPLORATIONS FOR ROBUSTNESS. JUNE 2017 TILL DATE
(M) PUBLICATIONS
- THESIS / DISSERTATION
- An Exchange Algorithm for obtaining the global optimizer of a response function. An M.Sc. Thesis, Department of Statistics, University of Nigeria. 1999
- A Hill-Climbing Combinatorial Algorithm for constructing D-optimal Exact design. A Ph.D Dissertation, Department of Statistics, University of Nigeria, Nsukka. 2008
(b) JOURNAL ARTICLES:
- Iwundu, M. P. and Aniekan Offiong (2003). An Exchange Algorithm for Global Optimization of a Response Function. Global Journal of Pure and Applied Sciences Vol. 9, No.1 ,147-155 (NIGERIA)
- Aniekan Offiong and Iwundu, M. P. (2003). Numerical application of an exchange algorithm for global optimization. Nigerian Journal of Research and Production: A Journal of the Nigerian Researchers Forum. VOL. 2, NO. 2, 33-45. (NIGERIA)
- Onukogu, I. B. and Iwundu, M. P. (2007). A combinatorial procedure for constructing D-optimal exact designs. STATISTICA 64,415-423(2007). (ITALY) .
- Iwundu, M. P. and Ebong, D. W. (2008). Construction of N-point exact designs to satisfy D-optimality criterion. International Journal of Physical Sciences Vol. 3, No. 2, 6-13. (NIGERIA)
- Iwundu, M. P. (2008). An improvement on the starting point for use in constructing D-optimal exact designs. Journal of the Nigerian Statistical Association. Vol.20, 34-44). (NIGERIA)
- Iwundu, M. P. (2010). On the choice of initial tuple of support points for Quadratic Response Surface Designs. African Journal of Physical Science, Volume 3, No.2. pg 1-10. ISSN:2141-0119). (NIGERIA)
- Iwundu, M. P. (2010). Convergence of the Variance Exchange Algorithm at a Non-Global Optimum: A Unique Solution. Journal of the Nigerian Statistical Association. Vol.22, 25-36). (NIGERIA)
- Iwundu, M. P. and Chigbu, P. E. (2012). A Hill-Climbing Combinatorial Algorithm For Constructing N-Point D-Optimal Exact Designs. Journal of Statistics Applications and Probability. Vol. 1, No. 2, 133-146. (USA)
- Omosioni, P. E. and Iwundu, M. P. (2012). The Effect of Feed Type on the Growth of Catfish (Claria-Gariepinus) Using a 2k Factorial Design . SCIENTIA AFRICANA Vol. 11, No. 2, pg. 65-73. (NIGERIA)
- Odiakosa, O. and Iwundu, M. P. (2013). A Quick Convergent Inflow Algorithm for solving Linear Programming Problems. Journal of Statistics Applications and Probability Vol. 2, No. 2, 103-114 (USA)
- Iwundu, M. P. and Otaru, O. P. (2014). Imposing D-Optimality Criterion on the Design Regions of the Central Composite Designs (CCD). SCIENTIA AFRICANA Vol. 13, No. 1, pg. 109-119. (NIGERIA)
- Iwundu, M. P. and Hezekiah, J. E. (2014). Algorithmic approah to solving Linear Programming problems on segmented regions. Asian Journal of Mathematics and Statistics 7, (2): 40-59. (PAKISTAN)
- Iwundu, M. P. and Albert-Udochukwuka, E. B. (2014). An efficient algorithm for constructing D-optimal designs. Journal of Applied Sciences, 14: 3547-3554, (2014). (PAKISTAN)
- Iwundu, M. P. and Ebong, D. W. (2014). Modified Quick Convergent Inflow Algorithm for solving Linear Programming Problems. International Journal of Statistics and Probability, VOL.3, NO.4, PAGES 54-66. (CANADA)
- Iwundu, M. P. and Albert-Udochukwuka, E. B. (2014). On the behaviour of D-Optimal Exact Designs under changing Regression Polynomials. International Journal of Statistics and Probability, Vol.3, No.4, Pages 67-85. (CANADA)
- Iwundu, M. P. and Abolaji, E. (2014). Starting design for use in Variance Exchange Algorithms. SCIENTIA AFRICANA Vol. 13, No. 2, pg. 36-46 (NIGERIA)
- Iwundu, M. P., Otaru, O. P. and Onukogu, I. B. (2014). Simultaneous Optimization of Response Surfaces: Using Variance Weighted Gradient. Journal of Knowledge Management, Economics and Information Technology, Vol. 4(1), Pages 168-174. (ROMANIA) ISSN: 2247-7756
- Iwundu, M. P. and Ndiyo, I. E. (2015). Comparative study of the Quick Convergent Inflow Algorithm (QCIA) and the Modified Quick Convergent Inflow Algorithm (MQCIA). International Journal of Statistics and Probability, Vol.4, No.2, pg. 95-112. (CANADA)
- Iwundu, M. P. and Omosioni, P. E. (2015). On the Adequacy of Variable Selection Techniques on Model Building. Asian Journal of Mathematics & Statistics. Vol. 8, No. 1. Pg. 19-34 (PAKISTAN)
- Iwundu, M. P. (2015). Optimal Partially Replicated Cube, Star and Center Runs in Face-centered Central Composite Designs. International Journal of Statistics and Probability, Vol.4, No.4, pg. 1-19. (CANADA)
- Iwundu, M. P. and Ekpo, S. U. (2016). Rules for identifying the initial design points for use in the Quick Convergent Inflow Algorithm. International Journal of Statistics and Probability, Vol.5, No. 1, pg. 98-110. (CANADA)
- Iwundu, M. P. (2016). Alternative Second-Order N-point Spherical Response Surface Methodology Design and their Efficiencies. International Journal of Statistics and Probability, Vol. 5, No. 4. pg. 22-30 URL: http://dx.doi.org/10.5539/ijsp.v5n4 p22 (CANADA)
- Iwundu, M. P. (2016). Useful Numerical Statistics of Some Response Surface Methodology Designs. Journal of Mathematics Research, Vol. 8, No. 4, pg. 40-67. doi:10.5539/jmr.v8n4p40 URL: http://dx.doi.org/10.5539/jmr.v8n4p40 (CANADA)
- Iwundu, M. P. (2016). On the behaviour of Second-order N-point Equiradial Designs under varying model parameters. International Journal of Statistics and Applications, Vol. 6. No. 5, pg. 276-292. doi: 10.5923/j.statistics.20160605.02 (USA)
- Iwundu, M. P. (2016). Design Filtering and Reconstruction: A Procedure for Sequentially Locating D-Optimal Design Measures. International Journal of Statistics and Applications, Vol. 6. No. 5, pg. 300-308. doi: 10.5923/j.statistics.20160605.04 (USA)
- Iwundu, M. P., Chigbu, P. E. and Ukaegbu, E. C. (2016). D-optimally-constructed Exact Designs under the variation of Non-D-Optimality Criteria for varying Regression Polynomials. Journal of Statistics Applications and Probability Vol. 5, No. 3, 399-410. http://dx.doi.org/10.18576/jsap/050304 (USA)
- Iwundu, M. P. and Onisokumen, D. (2016). The effect of Sample Size Selection on Type I Error, Type II Error, Power of the test and P-value. International Journal of Advancement in Physical Science. Vol. 8, No. 1, pp. 174-178 (GHANA)
- Iwundu, M. P. (2017). The Effects of Addition of Center Points on the Optimality of Box-Benhken and Box-Wilson Second-order Designs. International Journal of Probability and Statistics, Vol. 6, No. 2, pp. 20-32. 10.5923/j.ijps.20170602.02 (USA)
- Otaru, O. A. P. and Iwundu, M. P. (2017). The Variance Weighted Gradient Projection (VWGP): An alternative optimization approach of Response Surfaces. International Journal of Statistics and Applications, Vol. 7, No. 2, pp. 57-72. DOI: 10.5923/j.statistics.20170702.02 (USA)
- Otaru, O. A. P. and Iwundu, M. P. (2017). Competitive assessment of two Variance Weighted Gradient (VWG) methods with some Standard Gradient and Non-gradient Optimization Methods. International Journal of Statistics and Applications.Vol.7, No. 2, pp.73-92. DOI:10.5923/j.statistics.20170702.02 (USA)
- Iwundu, M. P. and Jaja, E. I. (2017). Precision of full polynomial response surface designs on models with missing coefficients. International Journal of Advanced Statistics and Probability. Vol. 5, No. 1, pp. 32 – 36. doi: 10.14419/ijasp.v5i1.7491 (UAE).
- Iwundu, M. P. (2017) Missing observations: The loss in relative A-, D- and G-efficiency. International Journal of Advanced Mathematical Sciences. Vol. 5, No. 2, pp 43-49. DOI: 10.14419/ijams.v5i2.7786 (UAE)
- Iwundu, M. P. and Onu, O. H (2017) Equiradial designs under changing axial distances, design sizes and varying center runs with their relationships to the central composite designs. International Journal of Advanced Statistics and Probability. Vol. 5. No. 2 pp. 77-82.
DOI: 10.14419/ijasp.v5i2.7701 (UAE)
- Iwundu, M. P. (2017) On the Compounds of Hat Matrix for Six-Factor Central Composite Design with Fractional Replicates of the Factorial Portion. American Journal of Computational and Applied Mathematics. Vol. 7. No. 4. pp. 95-114. DOI:10.5923/j.ajcam.20170704.02 (USA)
- Iwundu, M. P. and Anyanwu, C. O. (2018). An Application of Categorical Analysis of Variance in Nested Arrangements. International Journal of Probability and Statistics. Vol. 7
No. 3, pp. 67-81. DOI: 10.5923/j.ijps.20180703.02 (USA)
- Iwundu, M. P. (2018). Construction of Modified Central Composite Designs for Non-standard Models. International Journal of Statistics and Probability. Vol. 7, No. 5, pp. 95-119.
- (CANADA)
- Iwundu, M. P. and Otaru, O. P. (2019). Construction of Hat-Matrix aided Composite Designs for Second-order models. American Journal of Computational and Applied Mathematics. Vol. 9, No. 3. pp. 62-84. DOI: 10.5923/j.ajcam.20190903.03
- Jaja, E. I., Iwundu, M. P. and Etuk, E. H. (2021). The Comparative Study of CCD and MCCD in the Presence of a Missing Design Point. African Journal of Mathematics and Statistics Studies 4(2), 10-24. DOI: 10.52589/AJMSS-JF1A1DZA.
- Jaja, E. I., Etuk , E. H., Iwundu, M. P. and Amos E. (2021). Robustness of Central Composite Design and Modified Central Composite Design to a Missing Observation for Non-Standard Models. African Journal of Mathematics and Statistics Studies 4(2), 25-40. DOI: 10.52589/AJMSS-C5NKOI81.
(c) BOOK PUBLICATION
- E. C. Nduka, D. W. Ebong, E. E. David, M. P. Iwundu, J. D. Olisa, I. U. Udo-Akpan, I. O. Ikonwa, P. Jacreece, A. Musa, I. A. Iwok, F. Nzerem:
Basic Mathematics 2nd Edition (2010). Pearl Publishers, Port Harcourt, (NIGERIA).
Chapter in book: Chapter Eleven
- Umoren, Mfoniso and Iwundu, Mary (2016):
Fundamentals of Probability Theory and Its Applications. Second Edition, CHADIK Press (NIGERIA).
- Iwundu, M. P. (2017):
Principles of Experimental Design. CHADIK Press (NIGERIA).
- Iwundu, M. P. Iwundu, I. A. Iwok, M. A. Ijomah, N. P. Akpan, C. U. Orumie, M. T. Nwakuya, U. P. Ogoke and E. O. Biu (2021): Statistics for Biological and Medical Sciences Katapuno Prints, Port Harcourt.
(d) JOURNAL ARTICLE IN THE PRESS
Sequential Third-Order Response Surface Designs by Iwundu, M. P. and Agadaga, G. O
Synopsis of the article
The use of third-order response surface designs suggests experimental situations involving second-order lack of fits. New sequential third-order response surface designs are proposed for use in modeling third-order effects using very simple mathematical principles. The experimental runs admitted into the designs are hat matrix aided and the new designs show high design efficiencies. Grid formation is adopted as a principle of discretizing a continuous design space. For a cuboidal region in dimensions, five grid levels are utilized and the associated grid points form the candidate set for consideration in design construction. The new sequential designs are augmentations of the standard central composite designs and are generated using block of points corresponding to some diagonal elements of the hat matrix. All designs studied in two and three variables have very good optimality properties.
- N) CONFERENCES
1. 34th Annual conference of the Nigerian Statistical Association, Owerri, Imo State (2011).
The Effect Of Feed Type On The Growth Of Catfish (Claria-Gariepinus) Using A 2k Factorial Design.
By Omosioni, P. E. and Iwundu, M. P.
2. 27th Annual Conference of Nigerian Mathematical Society, Port Harcourt, May 27-30, 2008. A comparison of the performances of two algorithms in constructing D-optimal exact design.
By Iwundu, M. P.
3. Proceedings of Annual Conference of International Research and Developement Institute, (2007). Construction of N-point exact design to satisfy D-optimality criterion.
By Iwundu, M. P. and Ebong, D. W.
4. Abstracts of papres, 1st International Conference on recent developments in optimization methods and optimal experimental designs. Owerri (2012). A Quick Convergent Inflow Algorithm For Solving Linear Programming Problems. 2, No. 2, 103-114
By Odiakosa A. O. And Iwundu, M. P.
5. Abstracts of papers, 1st International Conference on recent developments in optimization methods and optimal experimental designs. Owerri (2012). Imposing D-Optimality Criterion On The Design Regions Of The Central Composite Designs (CCD)
By Iwundu, M. P and Otaru, O. A. P
6. 37th Annual conference of the Nigerian Statistical Association, Markurdi (2014).
7 34th Annual Conference of Nigerian Mathematical Society, Abuja (2015).
8 35th Annual Conference of Nigerian Mathematical Society, Lagos, 2016. Consequences and efficiencies of the Quick Convergent Inflow Algorithm (QCIA) and the Modified Quick Convergent Inflow Algorithm (MQCIA)
By Iwundu, M. P. and Ndiyo, I. E.
9. 39th Annual conference of the Nigerian Statistical Association, Abuja (2016).
Alternative Second-Order N-Point Spherical Response Surface Methodology Designs and Their Efficiencies
By M. P. Iwundu
10. 4th Biennial National conference of Statistics Research Group (SRG), Department of Statistics, University of Benin, Department of Statistics, University of Benin, Benin City, May 2018. Construction of Modified Central Composite Designs for Non-standard Models
By M. P. Iwundu (Invited Paper)
11. 43rd Annual conference of the Nigerian Statistical Association, Lokoja (2019).
REFEREES
Prof. E. C. Nduka Department of Mathematics and Statistics University of Port Harcourt Rivers State Nigeria. |
Prof. P. E. Chigbu Department of Statistics University of Nigeria Nsukka Enugu State Nigeria. |
Prof. I. B. Onukogu (Professor Emeritus) Owerri, Imo State, Nigeria.
|
SIGNED BY:
NAME: PROF. M. P. IWUNDU
DATE: August 24, 2021