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Dr. Geoffrey Mariga

Dr. Geoffrey Mariga

Senior Lecturer : School of Computing & Information Technology
gmariga@mut.ac.ke

Google Scholar: https://scholar.google.com/citations?user=KLoGNgEAAAAJ&hl=en&oi=ao

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Biography

Dr. Geoffrey Mariga Wambugu is a Senior Lecturer at Murang’a University of Technology, specializing in Information Technology. He holds a Ph.D. in IT from Jomo Kenyatta University of Agriculture and Technology, with a focus on machine learning. His research spans data science, text analytics, and natural language processing. Dr. Mariga has held leadership roles, developed academic curricula, and supervised postgraduate research in Applications of Machine Learning. He has published extensively and secured grants, including a 2024 research grant from KENET to enhance programming education through GenAI​.

Education

  • 2019: PhD. Information Technology . Specialization:- Machine Learning. Jomo Kenyatta University of Agriculture and Technology
  • 2012: Master of Science in Information Systems - University of Nairobi
  • 2000: Bachelor of Science - Maths & Computer Science - Jomo Kenyatta University of Agriculture and Technology (JKUAT).

Publications

  1. Wanjau, K., Wambugu, G. M., Oirere, A. M., & Muketha, G. M. (2024). Discriminative spatial-temporal feature learning for modeling network intrusion detection systems. Journal of Computer Security, 32(1), 1-30.
  2. Wanjau, K., Wambugu, G.M., & Oirere, A.M. (2023). „Evaluating Linear and Non-linear Dimensionality Reduction Approaches for Deep Learning- based Network Intrusion Detection Systems‟, International Journal of Wireless and Microwave Technologies(IJWMT), Vol.13, No.4, pp. 35-46, 2023. DOI:10.5815/ijwmt.2023.04.05
  3. Nandasaba, S., Wanyembi, G., & Wambugu, G. M. (2023). Electronic Health System Integration Framework for Secure M-Health Services: A Case of University of Nairobi Hospital. Computer and Information Science, 16(4), 1-21.
  4. Mukunga, C.W., Ndia, J.G. & Wambugu, G.M. (2023). „A Metrics -Based Model for Estimating the Maintenance Effort of Python Software‟ International Journal of Software Engineering & Applications (IJSEA) 14(03): 15-29. ISSN 0976-2221 (print).
  5. Wanjau, K., Wambugu, G.M., Oirere, A.M. & Muketha, G.M. (2023).„Discriminative spatial-temporal feature learning for modeling network intrusion detection systems‟ Journal of Computer Security, vol. Pre-press, no. Pre-press, pp. 1-30. DOI: 10.3233/JCS-220031.
  6. Wambua, W. & Wambugu, G.M. (2023). A Comparative Analysis of Bat and Genetic Algorithms for Test Case Prioritization in Regression Testing. International Journal of Intelligent Systems and Applications(IJISA). 15(01): 13-21. DOI:10.5815/ijisa.2023.01.02
  7. Maina, N. K., Muketha, G. M., & Wambugu, G. M. (2023). A New Complexity Metric for UML Sequence Diagrams. International Journal of Software Engineering & Applications (IJSEA) 4(01)
  8. Onyango, A., & Wambugu, G. M. (2023). Comparative Analysis on the Evaluation of the Complexity of C, C++, Java, PHP and Python Programming Languages based on Halstead Software Science. Vol.12 No.1 (March 2021), ISSN: 2279-0764. 10(2).
  9. Mukunga, C.W., Ndia, J.G. & Wambugu, G.M. (2022). Factors Affecting Software Maintenance Cost of Python Programs. International Journal of Software Engineering (IJSE). 10(02): 22-36.
  10. Kamiri, , Wambugu, G.M., & Oirere, A. M. (2022). A Comparative Study of Deep Learning and Transfer Learning in Detection of Diabetic Retinopathy. International Journal of Computer Applications Technology and Research. 11(07): 247-254. DOI:10.7753/IJCATR1107.1001
  11. Maina, N. K., Muketha, G. M., & Wambugu, G. M. (2022). A Literature Survey of Complexity Metrics for Object-Oriented Programs. International Journal of Science and Engineering Applications 11(5), 66-71.DOI:10.7753/IJSEA1105.1003
  12. Wanjau, K., Wambugu, G.M., & Oirere, A.M. (2022). „Network Intrusion Detection Systems: A Systematic Literature Review of Hybrid Deep Learning Approaches‟ International Journal of Emerging Science and Engineering (IJESE), 10(7). ISSN 2319-6378 (online).
  13. Ochango, V.M., Wambugu, G.M., & Ndia, J.G. (2022). Feature Extraction Using Histogram of Oriented Gradients for Image Classification in Maize Leaf Diseases. International Journal of Computer and Information Technology, ISSN: 2279-0764, 11(2). https://doi.org/10.24203/ijcit.v11i2.204.
  14. Wambui, M., Gikandi, J. W., & Wambugu, G. M. (2022). A Framework for Verification in Contactless Secure Physical Access Control and Authentication Systems.
  15. Kamiri, , Wambugu, G. M., & Oirere, A. (2022). A Systematic Literature Review of Meta-Learning Models for Classification Tasks.
  16. Ochango, V. M., Wambugu, G. M., & Ndia, J. G. (2022). Comparative Analysis of Machine Learning Algorithms Accuracy for Maize Leaf Disease
  17. Wambui, B. M., Gikandi, J. W., & Wambugu, G. M. (2022). A Survey of Biometric Authentication Technologies Towards Secure And Robust Systems: A Case Study of Mount Kenya University. Computer and Information Science; 15, No. 2; ISSN(Print): 1913-8989 ISSN(Online):1913-8997
  18. Munyua, J. G., Wambugu, G. M., & Njenga, S. T. (2021). A Survey of Deep Learning Solutions for Anomaly Detection in Surveillance Videos. International Journal of Computer and Information Technology (2279- 0764), 10(5).
  19. Wasike, H. K., Njenga, S. T., & Wambugu, G. M. (2021). A Review: Diseased Leaf Feature Extraction Using Machine Learning Classification Techniques. International Journal of Formal Sciences: Current and Future Research Trends, 10(01), 10-29.
  20. Muhindi, G., Wambugu, G., & Oirere, A, „Detection of Visual Similarity Snooping Attacks in Emails using an Extended Client Based Technique. International Journal of Engineering and Advanced Technology (IJEAT) ISSN: 2249-8958, Volume-10 Issue-4, April 2021
  21. Wambugu, J.K., & Wambugu, G.M., Research Methods in Machine Learning: A Content Analysis. International Journal of Computer and Information Technology 10 No.2 (March 2021), ISSN: 2279-0764.10(2). https://doi.org/10.24203/ijcit.v10i2.79
  22. Ndung’u, R.N., Kamau, G.N., & Wambugu, G.M., Developing Hybrid- Based Recommender System with Naïve Bayes Optimization to Increase Prediction Efficiency, International Journal of Computer and InformationTechnology Vol.10 No.2 (March 2021), ISSN: 2279-0764. https://doi.org/10.24203/ijcit.v10i2.75
  23. Ndung’u, N., Wambugu, G.M., & Kamau, G.N., „Using feature selection methods to discover frequent users‟ preferences for online recommender systems‟ International Journal of Computer and Information Technology Vol.10 No.1 (January 2021), ISSN : 2279-0764.
  24. Wanjau, K., Wambugu, G.M., & Kamau, G.N., „SSH-Brute Force Attack Detection Model Based on Deep Learning‟ International Journal of Computer Applications Technology and Research, Volume 10– Issue 01, January 2021, (ISSN: 2319–8656 (Online))
  25. Muhindi, G., Wambugu, G., & Oirere, A „A Literature Survey of Visual Similarity Snooping Attacks in Emails‟ International Journal of Network Security (IJNS), ISSN 1816-353X (Print) ISSN 1816-3548 (Online)
  26. Wambugu, G., Onyango, G., & Kimani, S. 2018 „Quadratic Approach for Fast Topic Selection in Modelling Big Text Analytics‟ International Journal of Advancements in Computing Technology (IJACT) Volume10, Number2 ISSN : 2005-8039(Print), 2233-9337(Online).
  27. Wambugu, G.M., Okeyo, G. and Kimani, S., 2018. „A Survey of Topic Model Inference Techniques‟ International Journal of Computer and Information Technology (ISSN: 2279 – 0764) Volume 07– Issue 04, July 2018.
  28. Wambugu, GM & Njeru, KM (2017) „Automatic Debugging Approaches: A literature Review‟ International Journal of Applied Computer Science (IJACS) ISSN 2522-6258 01– Issue 01
  29. Wambugu, GM Ogenga, SO Shikali, C. & Wafula, MJ, 2017 „Computer Laptop Project Strategy for Basic Education Schools in Kenya‟ International Journal of Information and Communication Technology Research ISSN 2223–4985 Vol.07– Issue 05
  30. Wambugu, GM Obwaya, M Kimani, C Wambui, I & Loki, M 2015, „Big Data and Business Support: Strategies and Challenges‟. International Journal of Economics, Commerce and Management, United Kingdom,III, Issue 3 ISSN 2348-0386
  31. Wambugu, GM & Wausi, AN 2013, „Subjective Norms and Information Systems Implementation: A Case of Higher Education Institutions in a developing country‟, International Journal of Science and Research (IJSR), 2, no. 3, pp. 65-70, ISSN: 2319-7064