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Prof. Usman Shehu Gulumbe

Area of specialization:Statistical Pattern Recognition and Computational Statistics
Email:usman.gulumbe@udusok.edu.ng
Phone:

List of Selected Publications

1. Gulumbe, S.U.; Shehu, B; and Dahiru, S (2021): On some Solutions of the Multivariate Behrens Fisher Problem. Journal of Mathematical Sciences and Computational Mathematics, Vol.2, No.2, Pp.322- 335.
2. Onwuka, G.I; Shehu, B; and Gulumbe, S.U. (2021): Further Solutions of the Multivariate Behrens Fisher Problem. Journal of Mathematical Sciences and Computational Mathematics, Vol. 2, No.3, Pp.440 - 451.
3. Musa, Y., Etuk, I. E., and Gulumbe, S. U. (2020): Efficiency and Consistency Assessment of Value at Risk Methods for Selected Banks Data. Journal of Advances in Mathematics and Computer Science, 35(2), 1-11. https://doi.org/10.9734/jamcs/2020/v35i230245. ISSN: 2456-9968
4. Iniabasi Emmanuel Etuk, Yakubu Musa, Shehu Usman Gulumbe (2019): Estimating and Predicting Value at Risk in Selected Banks of Nigeria Stock Market. International Journal of Statistics and Applications. Vol. 9(4): 117-121. (p-ISSN: 2168-5193 e-ISSN: 2168-5215) doi:10.5923/j.statistics.20190904.03
5. A. B. Zoramawa, Gulumbe S. U., R.R.L. Kantam and Musa Y. (2018): Developing double acceptance sampling plans for percentiles based on the inverse Rayleigh distribution. International Journal of Statistics and Applied Mathematics. Vol. 3, Issue 1, 39-44.
6. Usman Gulumbe, Olatunji Alabi, Olusola A. Omisakin and Semeeh Omoleke (2018): Maternal mortality ratio in selected rural communities in Kebbi State, Northwest Nigeria. BMC Pregnancy and Childbirth, Vol. 18:503, Pp. 1-7 . Open Access
7. Umar S.M. and Gulumbe, S.U. (2018): Extended Generalised Multivariate Semi-Pareto (III) Distribution and its Characterisation Property. Benin Journal of Statistics, Vol.1, pp: 68-74
8. T. O. James, S. U. Gulumbe and A. Danbaba (2018): Resilient Back-Propagation Algorithm in the Prediction of Mother to Child Transmission of HIV. Open Access Library Journal, Vol.5 , Pp. 1 - 7
9. Umar Abubakar Adamu, Gulumbe, Shehu Usman and Dikko Hussaini Garba (2017) : Multivariate Statistical Process Control approach to monitor quality of Chloroquine Phosphate Tablet (bp 250mg) in Dana Pharmaceutical Company. International Journal of Advanced Statistics and Probability, Vol. 5 (1), Pp. 1 - 7
10. S.U. Gulumbe, S. Suleiman, B.K.Asare and M. Abubakar (2016): Forecasting volatility of Nigerian Crude price using Non-linear Auto-regressive with Exogenous (NARX) Inputs model. Imperial Journal of Interdisciplinary Research (IJIR), Vol.2, Issue-5, Pp. 434-442
11. S. Suleiman, S.U. Gulumbe, B.K. Asare and M. Abubakar (2016): Comparative Study of Back-propagation algorithms in Forecasting volatility of Crude Oil price in Nigeria. Science Journal of Applied Mathematics and Statistics, Vol.4, No.3, Pp.88-96
12. S. Suleiman, S.U. Gulumbe, B.K. Asare and M. Abubakar (2016): Training Dynamic Neural Networks for forecasting Naira/Dollar Exchange Returns volatility in Nigeria. American Journal of Management Science and Engineering Vol.1, No.1, Pp. 8-14. doi:10.11648/j.ajmse.20160101.12
13. B.K.Asare, S.U. Gulumbe, M. Abubakar and S. Suleiman (2016): Volatility Forecasting: An Application of a Recurrent Dynamic Neural Networks in Nigeria. International Journal of Novel Research in Computer Science and Software Engineering, Vol.3, Issue-1, Pp.112-120
14. Gulumbe, S.U. and Umar, S.M. (2015): A new Family of Multivariate Semi-Pareto Distribution and its Characterizations Properties. Transaction of the Nigerian Association of Mathematical Physics, I, pp: 157-168
15. Akinwande Michael Olusegun, Hussaini Garba Dikko, Shehu Usman Gulumbe. (2015): Identifying the Limitation of Stepwise Selection for Variable Selection in Regression Analysis. American Journal of Theoretical and Applied Statistics, 4 (5): 414-419.
16. Babayemi, A.W. , Asare, B.K., Gulumbe, S.U. (2015): Random Walk Behaviour of the African Stock Markets in the Presence of Structural Breaks/changes. Proceedings of 32nd The IIER International Conference, Dubai, UAE, 8th August, 2015
17. Jibril Y. Kajuru, Husaini Dikko and Gulumbe, S.U.(2015): Analysing Temperature Pattern in Zaria Metropolis, Nigeria Using Seasonal ARIMA model. International Journal of Innovative Research in Science, Engineering and Technology, Vol. 4(4), 2015
18. Gulumbe, S.U., Haruna, Y. and Umar S.M. (2014): A New Family for Generalized Multivariate Pareto (III) Distributions and its Characterizations. Journal of the Nigerian Statistical Association , 26, pp: 35-51
19. Tasi’u M., Yakubu Musa, and Gulumbe S. U.(2014): Exchange rate volatility of Nigerian Naira against some major currencies in the world: An application of multivariate GARCH models. International Journal of Mathematics and Statistics Invention. Vol.2, Issue 6, PP:52-65 (E-ISSN:2321-4767, P-ISSN: 2321-4759) http://www.ijmsi.org/Papers/Volume.2.Issue.6/G026052065.pdf
20. M. Usman, H.G. Dikko, S.Bala, S.U. Gulumbe (2014): An Application of Kaplan-Meier Survival Analysis Using Breast Cancer Data. it Sub-Saharan African Journal of Medicine , Vol. 1 (3): 132-
21. Suleiman A. Tijani, Dikko H.G., Gulumbe, S.U. and Nnamani C.N.(2014): Parameter Estimation and Model Comparison for Inflation Rate of Nigeria: Application of SETAR, ANN and ARIMA approach. To appear in CBN Journal of Applied Statistics, Vol. 5
22. Iyiegbu T.I and Gulumbe, S.U. (2014): Investigating the Effects of Prior in Analysing Reliability Problems: Using Bayesian Model Averaging Method. Journal of the Nigerian Association of Mathematical Physics, Vol. 28(2):189-194
23. U. Usman, S.A. Yelwa, S.U. Gulumbe and A. Danbaba (2013): Modelling relationship between NDVI and Climatic variables using geographically weighted regression. Journal of Mathematical Sciences and Applications, Vol. 1 (2): 24-28
24. U. Usman, S.A. Yelwa, S.U. Gulumbe and A. Danbaba (2013): An assessment of the changing climate in northern Nigeria using cokriging. American journal of Applied Mathematics and Statistics, Vol. 1 (5): 90-98
25. Gulumbe, S.U., Yelwa, S.A. and Bakari, H.R.(2013): HIV/AIDS pandemic: Modelling the spatiotemporal effects. Continental Journal of Applied Sciences, 8(1):14-25
26. Yakubu Musa, Barfour K. Asare and Shehu U. Gulumbe (2013): Effect of Monetary-Fiscal Policies Interaction on Price and Output Growth in Nigeria. CBN Journal of Applied Statistics, Vol.4 (1): 55-74.
27. U. Usman, S.A. Yelwa and S.U. Gulumbe (2012): An Assessment of Vegetation cover changes across northern Nigeria using trend line and principal component analysis. Journal of Agriculture and Environmental Sciences, Vol. 1 (1): 01-18
28. Bello, Y.,Gulumbe, S.U. and Yelwa, S.A.(2012):Simultaneous Application of Agglomerative Algorithms on the Interval Measures for Better Classification of Crime Data Across the States in Nigeria. Research Journal of Applied Sciences, 7(1): 41- 47
29. Bello, Y., Gulumbe, S.U., Yelwa, S.A. and Badamasi, M.M. (2012): Monitoring Crime Rates with Control Charts Using GIS Classification. Research Journal of Applied Sciences, 7(2): 207 - 214
30. U. Dauda, S.U. Gulumbe, M. Yakubu. and L.K. Ibrahim (2011): Monitoring Of Infectious Diseases in Katsina and Daura Zones of Katsina State: A Clustering Analysis. Nigerian Journal of Basic and Applied Sciences. Vol. 19(1): 31- 42. (ISSN: 0794-5698) DOI: http://dx.doi.org/10.4314/njbas.v19i1.69341
31. S.U. Gulumbe and H.R. Bakari.(2011): Approximately unbiased tests of HIV/AIDS pandemic on the socio-economic and demographic factors: An application of multiscale bootstrap resampling technique. Global Journal of Maths and Stats, 3(1): 7-21
32. S.U. Gulumbe and H.R. Bakari. (2010): Factors influencing HIV/AIDS pandemic in the North-Eastern States of Nigeria: using logistic regression model.Journal of Mathematical Sciences, Vol. 21, No. 4, pp.377-387
33. H.R. Bakari, S.U. Gulumbe and S.C. Nwaosu.(2010): Estimation of fecundability and its relationship with blood group.International journal of Mathematical Science, Vol. 2, No. 1, pp. 97-101
34. H.R. Bakari, S.U. Gulumbe and H.G. Dikko. (2010): Effects of HIV/AIDS pandemic in the North-Eastern States of Nigeria: using a generalized linear model. International journal of Physical Science, Vol. 2, No. 1, 104 - 110
35. Ali Adamu and S.U. Gulumbe (2010): Statistical performance of EWMA and MEWMA quality control charts using simulation. Journal of Institute of Mathematics and Computer Sciences (Computer Science Series), Vo. 21, No.3, pp. 385 - 393
36. S.U. Gulumbe, A. Danbaba and Anyanwu Paul E. (2009): Fisher’s linear discriminant function–An application to human development index. Journal of Research in Physical Sciences, Vol. 5, No. 1, pp. 87 - 93
37. H.R. Bakari, K.N. Misra and S.U. Gulumbe (2008): Stochastic models and their application in population studies. (Accepted for Publication in Research Journal of Science.)
38. Yakubu Musa and S.U. Gulumbe (2008): Forecasting of temperature in Sokoto metropolis using seasonal Modelling. Nigeria Journal of Basic and Applied Sciences, Vol. 16, pp. 36 - 47.
39. S.U. Gulumbe, A. Danbaba and A.D. Boyi (2008): Monte-Carlo simulation study on the power of two sample Hotelling’s test. Nigeria Journal of Basic and Applied Sciences, Vol. 16, No.1, pp. 24 - 27.
40. S.U. Gulumbe and B.B. Alhaji (2007): Searching for natural groupings of some HIV/AIDS variables using nearest neighbour technique. Yauri Journal of Arts and Science, Vol. 2, No. 1, pp. 131 - 133
41. Garba Koko, S.U. Gulumbe and A. Danbaba (2007): An Investigation of Developmental Relationships between North and West African Regions using Socio-economic Indicators. Yauri Journal of Arts and Science, Vol. 2, No. 1, pp. 64 - 70
42. S.U. Gulumbe and B.B. Alhaji (2007): Furthest neighbour applications on some HIV/AIDS variables. In Proceeding of 44th Annual National Conference of Mathematical Association of Nigeria (MAN), pp. 144-148.
43. S.U. Gulumbe, U. Usman and A. Danbaba (2007): A comparative study of some pattern recognition methods for classification. In Proceeding of 44th Annual National Conference of Mathematical Association of Nigeria (MAN), pp.187-191.
44. S.U. Gulumbe (2005): Enhancing the efficiency of Poisson-Voronoi Aggregate Tessellation. Bulletin of Science Association of Nigeria (SAN), 41st Annual Conference Proceedings, vol.26(2005),639-643
45. S.U. Gulumbe and A. Danbaba (2005): Statistical pattern recognition: A nearest neighbour approach. Bulletin of Science Association of Nigeria (SAN), 41st Annual Conference’s proceedings, vol.26(2005), 631-638
46. U.A. Ali and S.U. Gulumbe (2005): Prediction of Customers purchasing behaviour of some supermarkets in Sokoto metropolis. Bulletin of Science Association of Nigeria (SAN), 41st Annual Conference’s proceedings, vol.26(2005), 625-630
47. Kabiru Mustapha and S.U. Gulumbe (2005): An easy expression for combination of three items in a given pattern. Bulletin of Science Association of Nigeria (SAN), 41th Annual Conference’s Proceedings, vol.26(2005), 644-646
48. S.U. Gulumbe (2006): An algorithm for nearest neighbour(s) search. PeCop Journal of Science, Engineering and Technology, Vol.1, Numbers 1 & 2, pp.10-14
49. S.U. Gulumbe (2004): Nearest neighbour classification: Minimum misclassification cost approach. Nigeria Journal of Basic and Applied Sciences, Vol. 13, pp. 77-82.
50. A.A. Ibrahim and S.U. Gulumbe (2004): A quantitative approach to the study of male and female heirs. In Proceedings of the Annual National Conference of Mathematical Association of Nigeria, pp. 24-34.
51. S.U. Gulumbe and A. Danbaba (2003): Principal component analysis of key energy indicators of West African Countries. Nigerian Journal of Renewable Energy, Vol. 11, Nos. 1&2, pp. 58 - 62
52. S.U. Gulumbe and G.A.Isa (2003): A model of Multi-attribute decision Making problem. Nigerian Journal of Basic and Applied Sciences, Vol. 12, pp.87-92.
53. R. Abubakar and S.U. Gulumbe (2003): Why Pascal is not our favourite programming language. Nigerian Journal of Basic and Applied Sciences, Vol. 12, pp.81-96.
54. M. Chiawa, Imande M. and S.U. Gulumbe (2001): Using time series model to study the effect of structural adjustment programme on Nigeria Airways Domestic passenger traffic. Science Forum: Journal of Pure and Applied Sciences, Vol.4, No.1,pp 127- 132
55. R.J. Henery and U.G. Shehu (2001): A fast nearest neighbour algorithm. Mathematics in Industry 1, Progress in Industrial Mathematics at ECMI 2000, eds. A.M. Anile et al, Palermo, Italy, pp. 571-576.
56. A.A. Ibrahim, S.U. Gulumbe and U.A. Ali (1998): Arithmetics of Quranic shares. In Islam and Development of of Science and Technology, Islamic Research Centre, Sokoto, Seminar Series 1, pp.324 -331.
57. B.K. Asare and S.U. Gulumbe (1992): On the M/M/1 processor-sharing system. Journal of Nigerian Mathematical Society, Vol. 11, No. 1, pp 67- 69.
58. S.U. Gulumbe, O.U. Ezikpe and S.U. Egariewe (1992): Computer Organization and Structure. In General Introduction to Computer Science,Anchor Educational Press, Lagos, Nigeria, pp.5-34.
59. S.U. Egariewe, C.U. Onianwa and S.U. Gulumbe (1992): Computer Logic and Arithematics (Boolean Algebra). In General Introduction to Computer Science, Anchor Educational Press, Lagos, Nigeria, pp. 35-58.
60. P.A. Osanaiye, F.A. Okoro and S.U. Gulumbe (1992): Structure of Algol Programming Language. In General Introduction to Computer Science, Anchor Educational Press, Lagos, Nigeria, pp. 73- 94.
61. D.S. Adegbenjo, M.A. Alimi and S.U. Gulumbe (1992): Algorithm and Flowchart. In General Introduction to Computer Science, Anchor Educational Press, Lagos, Nigeria, pp. 95-122.
62. D.S. Adegbenjo and S.U. Gulumbe (1992): Introduction to Machine Language. In General Introduction to Computer Science, Anchor Educational Press, Lagos, Nigeria, pp. 123-156.

SOME CONFERENCES/WORKSHOPS ATTENDED:

1. Inaibasi E. Etuk, Yakubu Musa and S. U. Gulumbe (2018) . Evaluation Of Value At Risk And Expected Shortfall Models With Fat Tail Data. A Paper Presented at the Nigeria Statistical Association (NSA) 42nd Annual National Statistical Conference Held on 5th – 7th September , 2018
2. Onwuka, G. I. , Sanusi J. A., Kajuru, J. Y., Musa, Y. and Gulumbe S.U. (2013). Modeling and Forecasting Rainfall Pattern in Sokoto. 2013 Annual conference Pro- ceedings, Nigerian Statistical Association. PP: 227-232 (A Paper Presented at the Nigeria Statistical Association (NSA) Annual Conference Held on 11th – 13th September 2013 at at Civil Service Auditorium, Akwa-Ibom State Secretariat , Uyo.)
3. Musa, Y. and Gulumbe, S. U. (2014). Analyzing Nigeria Inflation and Government Revenues Using ARDL Approach. 2014 Annual conference Proceedings, Nigerian Statistical Association. PP: 195-209 (A Paper Presented at the Nigeria Statistical Association (NSA) Annual Conference Held on 3rd – 5th September 2014 at Ibrahim Shehu Shema Conference Hall, local Government Service Commission, Katsina , Katsina State.
4. Jibrin, A. S., Jibrin, Y. K., Musa, Y., Danbaba, A., and Gulumbe, S. U. (2014). Analyzing World Crude Oil Prices Using GARCH, ARFIMA, ARIMA, and SARIMA Models. 2014 Annual conference Proceedings, Nigerian Statistical Association. PP: 155-175(A Paper Presented at the Nigeria Statistical Association (NSA) Annual Conference Held on 3rd – 5th September 2014 at Ibrahim Shehu Shema Conference Hall, local Government Service Commission, Katsina , Katsina State.)
5. S.U. Gulumbe (2010): Developing effective statistical system for policy making. W2010 Statistics Department Retreat, Organized by the Statistics Department of the Central Bank of Nigeria. Theme: Data Issues in the Nigerian Economy: Challenges and way forward, Hamdala Hotel, Kaduna, 6th - 8th August, 2010.
6. S.U. Gulumbe and Umar Usman (2009): A comparative study of Linear discrimi- nant and Nearest neighbours in pattern recognition methods for classification. 33rd Annual Conference of Nigerian Statistical Association (NSA), City Kings Hotel and Towers, Gusau, 12th-14th August,2009
7. S.U. Gulumbe, H.G. Dikko and Y.Bello (2009): Ward’s clustering algorithm for detecting higher and lower areas of crime concentration in Katsina State. 33rd An- nual Conference of Nigerian Statistical Association (NSA), City Kings Hotel and Towers, Gusau, 12th-14th August, 2009
8. A.A. Ibrahim and S.U. Gulumbe (2005): On Mathematical concepts and some traditional Institutions in Hausa Land-A particular reference to Sokoto State. 41th Annual Conference of Science Association of Nigeria (SAN), Usmanu D/Fodiyo University, Sokoto, 25th-29th April, 2005.
9. A.A.Ibrahim, S.U. Gulumbe and A.M. Sifawa (2003): Use of Mathematical Tech- niques in constructing estate sharing models: A particular reference to Malam Dan Ishaka’s Exposition in Sallamu al- Gawamidi. International Seminar on the Contri- butions of Sokoto Jihad Leaders to Science and Technology, Islamic foundation for Science, Sokoto, 23rd - 26th Sept, 2003.
10. A.A. Ibrahim, S.U. Gulumbe and U.M. Boyi (2003): A Mathematical perspective of the contributions of the Sokoto Jihad Leaders in the field of Ilm-al Adad and Ilm-al Hisab. International Seminar on the Contributions of Sokoto Jihad Leaders to Sci- ence and Technology, Islamic foundation for Science, Sokoto, 23rd - 26th Sept, 2003.
11. A.A. Ibrahim , S.U. Gulumbe and A.M. Sifawa (2003): Mathematical Analysis of Shiek Abdullahi’s Models on Qada’assalati with a particular reference to Dau- almusali. International Seminar on the Contributions of Sokoto Jihad Leaders to Science and Technology, Islamic foundation for Science, Sokoto, 23rd - 26th Sept, 2003.
12. S.U. Gulumbe (2002): Minimun cost nearest neigbour procedure. The 21st Annual Conference of the Nigerian Mathematical Society (NMS), FUT Yola, April 2002.
13. S.U. Gulumbe and R.J. Henery (2000): Cube pre-processor for nearest neigh- bour(s) search. International Conference of the Royal Statistical Society, University of Reading, U.K, 13-15th Sept. 2000.
14. U.G. Shehu and R.J. Henery (2000): An efficient pre-processor for finding nearest neighbour. 11th ECMI Conference, Palermo, Italy, Sept. 2000
15. A. Danbaba and S.U. Gulumbe (1999): Estimation and Use of Variance Compo- nents for Sample size determination. Departmental Seminar, Department of Math- ematics, Usmanu D/Fodiyo University, Sokoto, 2nd Dec. 1999.
16. B.K. Asare and S.U. Gulumbe (1994): A model of the growth process of a randomly rooted tree. 16th Annual conference of Nigerian Mathematical Society (NMS),Obafemi Awolowo University, Ile-Ife, 19th - 22nd April, 1995.
17. A.U. Sanda and S.U. Gulumbe (1994): Estimation of Distributed-lag Models. Departmental Seminar, Department of Mathematics, Usmanu D/Fodiyo University, Sokoto, Sept.,1994.
18. S.U. Gulumbe and B.K. Asare (1994): On the model for the growth of randomly growing rooted tree.31st Annual Conference of MAN, University of Uyo, Akwa-Ibom, Nigeria.
19. A.U. Sanda and S.U. Gulumbe (1994): Forecasting Agricultural productivity in Nigeria. 18th NSA Annual Conference, Giginya Hotel, Sokoto, Nigeria. 20. S.U. Egariewa and S.U. Gulumbe (1992): 6th National Colloquim and Congress of NAMP, University of Bennin, Benin City, Nigeria.
21. S.U. Gulumbe (1992): Comparison of ratio and regression estimators under strati- fied sampling. Departmental Seminar, Department of Mathematics,Usmanu D/Fodiyo University, Sokoto, February 6th, 1992.
22. S.U. Gulumbe and B.K. Asare (1991): On the M/M/I processor sharing system. 32nd Annual Conference of Science Association of Nigeria, University of Ilorin, Ilorin, Nigeria
23. S.U. Gulumbe (1990): Basic Statistics. Workshop on the training session of State manpower Planners, Dubur Hotel, Lagos, Nigeria, 13th - 24th August, 1990.
24. S.U. Gulumbe (1989): Randomness, Normality and Hypothesis testing. Depart- mental Seminar, Department of Mathematics, Usmanu D/Fodiyo University, Sokoto, June, 1989.
25. S.U. Gulumbe (1989): Statistical quality control and its roles in the manufacturing Industries. Departmental Seminar, Department of Mathematics, Usmanu D/Fodiyo University, Sokoto, June, 1989.
26. S.U. Gulumbe (1989): The average sample number for truncated single accep- tance sampling plans. Departmental Seminar, Department of Mathematics, Usmanu D/Fodiyo University, Sokoto, June, 1989.

Academic Metrics (Links to Google Scholar, ResearchGate, LinkedIn, ORCID, etc)

Research Gate: https://www.researchgate.net/profile/Usman- Gulumbe
Google Scholar: https://scholar.google.com/citations?user=y7 FPgeUAAAAJ&hl=en