kca@kca.ac.ke tel: +254 719 034 333

Prof. Patrick J. Ogao


Lecturer, School of Technology

E-mail Address



+254 (0) 713 681 753

Academic Qualification

  • PhD in Geoinformatics (University of Utrecht, The Netherland)
  • Msc in Geoinformatics (ITC, University of Twente, The Netherlands)
  • Bsc in Surveying and Photogrammetry (University of Nairobi, Kenya)

Membership of Professional Bodies/Associations

  • Professional Member ACM
  • Member IEEE
  • Member International Cartographic Association (ICA)


Prof. Ogao serves in the newly established centre for Faculty Excellence where his roles involves helping staff and students strive and succeed in teaching learning, mentoring, leadership and professional development.

His research areas are in Geoinformatics and Information Visualization. He has supervised PhD and MSc students in Computing, IT and Geoinformatics fields, and published widely in renowned international journals and conference proceedings.

He has served as External Examiner and Program Reviewer to a number of Universities in Kenya and Uganda. He is a proponent and trainer in use of Open Source GIS software in Africa.

Research Interest

  • Information Systems, Information Visualisation

Research Topics

  • Dynamic Animation Variables
  • Visualisation in Information Systems
  • Software Visualization

Current Research Project(s)

Visualization of pattern, trends and anomalies in budget data. The project involves dynamically following budget allocations and their subsequent utilization in development projects. A variety of intuitive visualisation techniques are incorporated to aid in presenting and interactively exploring budget data. A temporal comparison of these trends over the last 5 years is similarly highlighted.

Academic Background


  • Computer Graphics, Research Skills and Design


  • Human Perception and Information Visualisation
  • Visual Analytics System Architectures

Selected Publications( Books, Refereed publications & Non Refereed publications )

Kenga, D., Omwenga, V. and Ogao, P.J. (2019). MIFF: Performance Interference-Aware VM Placement Algorithm for Reducing Energy Consumption in Data Centers. In the International Journal of Advanced Trends in Computer Science and Engineering, Vol.8 No 4.

Kenga, D., Omwenga, V. and Ogao, P.J. (2019). Virtual Machine Sizing in Virtualized Public Cloud Data Centres. In the International Journal of Scientific Research in Computer Science, Engineering and Information Technology (IJSRCSEIT), Vol. 5 , Issue 3, ISSN : 2456-3307 DOI : https://doi.org/10.32628/CSEIT1953124

Osio, A., Lefèvre, S., Ogao, P., and Ayugi, S. (2018). OBIA-based Monitoring of Riparian Vegetation Applied to the Identification of Degraded Acacia Xanthophloea along Lake Nakuru, Kenya. GEOBIA 2018 – From pixels to ecosystems and global sustainability , Jun 2018, Montpellier, France. pp.18 – 22

Kenga, D., Omwenga, V. and Ogao, P. (2017). Energy Consumption in Cloud Computing Environments. In the Proceedings of the IEEE/Pan African Conference on Science, Computing and Telecommunications (PACT 2017) March 7th-10th 2017, Nairobi, Kenya.

Wadembere, I, Ogao, P.J. (2014) Overcoming Misalignment in Geo-spatial Datasets . In Journal of Geographic Information System, Vol.6, No4, Scienitific Research Publishing Inc.

Wadembere I, and Ogao, P.J. (2014). Validation of GIS Vector Data during Geo-spatial Alignment. In International Journal of Geoinformatics, ISSN:16866576, Vol.10, No.4.

Ojino R., Mich L., Ogao P., Karume S. (2013), The Quality of Kenyan University Websites: A Study for the Re-engineering of the University of Nairobi Website, Journal of e-Learning and Knowledge Society, v.9, n.3, XX-YY. ISSN: 1826-6223, e-ISSN:1971-8829.

Ojenge, W, Afullo, T. Ogao, P. and Okello-Odongo, W. (2013). PSO of Neural Networks to Predict Busy Times of Cellular Traffic for Assignment to TV Idle Channels by Cognitive Radio. In the 5th International Conference on Computational Intelligence, Communication Systems and Networks, Madrid, Spain. In the proceedings of European Modeling Symposium.

Wadembere I, and Ogao, P.J. (2010). Geometry Updating for Gesopatial Data Integration. In ISPRS Archive, Vol. XXXVIII, Part 4-8-2-W9, “Core Spatial Databases – Updating, Maintenance and Services – From Theory to Practice”, Haifa, Israel.

Sensalire, M. Ogao, P.J. and Telea. A. (2010). Model-Based Analysis of Adoption Factors for Software Visualization Tools in Corrective Maintenance. Technical report, University of Groningen, 2010.

Tibenderana, P.K.G., Ogao, P.J., Ikoja-Odongo, J.R and Wokadala, J. (2010). Measuring Levels of End-Users’ Acceptance and Use of Hybrid Library Services. International Journal of Education and Development Using Information and Commmunication Technology.

Tibenderana, P.K.G. and Ogao, P.J. Information Communication Technologies Acceptance and Use Among University Communities in Uganda: A Model for Hybrid Library Services End –Users. In International Journal of Computing and ICT Research, Special Issue. ISSN 1818-1139. 2008.

Bosman, D.W.J. Blom, E-J, Ogao, P.J., Kuipers, O.P., and Roerdink, J.B.T.M. MOVE: A Multi-level Ontology-based Visualization and Exploration framework for genomic networks. In Silico Biology,. An international Journal in Molecular Biology, ISSN 1434-327, (7), 0004. 2006.

Ogao, P.J. and M-J., Kraak. Defining visualization operations for temporal cartographic animation design. International Journal of Applied Earth Observations and Geoinformation, (4), 23-31,Elsevier, ISSN 0303-2434, 2002.

Ogao, P.J. A tool for exploring space-time patterns: an animation user research. International Journal of Health Geographics, ISSN 1476-072X, (5):35., 2006.

Ogao, P.J. Gebruik van animaties om ruimtelijke structuren te exploreren: zijn ze effectief? (Use of animation to explore spatial data: Are they effective?). Kartografisch Tijdschrift, ISSN 0167-5788, (24), 25-31. 2002.

Wadembere, I and Ogao, P. J. Geometry Updating for Geospatial Data Integration. In Proceedings of MSV’10 workshop on Geographic Information System Based Decision Support Systems, July 12-15, 2010, USA.

Sensalire, M., Ogao, P., A. Telea, (2009). Evaluation of Software Visualization Tools: Lessons Learned. Published in the proceedings of 5th IEEE International Workshop on Visualizing Software for Understanding and Analysis. Edmonton, Canada.

Sensalire, M, Ogao, P., A. Telea. (2008). Classifying Desirable Features of Software Visualization Tools for Corrective Maintenance. In Proceedings of the 4th ACM Symposium on Software Visualization, ACM New York, NY, USA.

Tibenderana, P and Ogao, P.J. (2008). Acceptance and use of electronic library services in Ugandan universities. JCDL 2008: 323-332.

Sensalire, M, Ogao, P. (2007). Visualizing Object Oriented Software: Towards a point of Reference for Developing tools for industry. In Proceedings of the 4th IEEE International Workshop of Visualizing Software for Understanding and Analysis. Banff, Canada.

Sensalire, M, and Ogao, P.J. (2007). Tool Users Requirements Classification: How Software Visualization Tools measure up. Published in proceedings of the ACM Afrigraph 2007: 5th International Conference on Virtual Reality, Computer Graphics, Visualization and Interaction in Africa, SA. ISBN: 2007.

Sensalire, M, and Ogao, P.J. (2007). Not all Visualizations are Useful: The Need to Target User Needs when Visualizing Object Oriented Software. Special Topics in Computing and ICT Research, Fountain Publishers, Kampala, (3), 2007.

Ogao, P.J., Visser, M.P., and Roerdink, J.B.T.M. (2007). Performance Metrics of a 3D Multiple Selection User Interface Tool in Virtual Environment. To appear in the edited book for the 1st International Conference in Computer Science and Informatics, 5- 7th February 2007, Nairobi, Kenya, 2007.

Ogao, P.J. and C.A. Blok. (2001). Cognitive aspects on the representation of dynamic environmental phenomena using animations. Rautenstrauch, C. and Patig, S. (Eds). Environmental Information Systems in Industry and Public Administration, Idea Group Publishers, USA, ISBN:1-930708-02-5.13-24, 2001.

Ogao, P.J. (2002). Exploratory Visualization of Temporal Geospatial Data using Animation. ITC Publication, Febodruk BV, Enschede. ISBN 90-6164-206-X, 158p. 2002. (Multimedia CD-ROM included).

Baguma, R., Ogao, P.J. and Wanyama, T. Towards web Design Frameworks Kizza,J, Aisbett, J., Vince, A., and Wanyama, T. (Eds). Special Topics in Computing and ICT Research: Advances in Systems Modelling and ICT Applications, ISBN 13:978-9970- 02-604-3; ISBN 10:9970-02-604-6, (2), 178-184, 2006.

Ogao, P.J. (2006). Beyond the Computer Graphics Course: A Case for African Universities. Kizza,J,, Aisbett, J., Vince, A., and Wanyama, T. (Eds). Special Topics in Computing and ICT Research: Advances in Systems Modelling and ICT Applications, ISBN 13:978-9970-02-604-3; ISBN 10:9970-02-604-6, (2), 2006.

Ogao, P.J.(1999). Visualization of Urban growth using temporal cartographic animation. ICA publications, Ottawa, ISBN 0-919088-54-6, , (28-C), 5, 1999.

Ogao, P.J. and M-J., Kraak. (2001). Geospatial data exploration using interactive and intelligent cartographic animations. ICA publications, Beijing, ISBN 7-5030-1018- 5, 965 – 973.

Ogao, P.J. (2001). Applying a Creative cognition approach in exploratory cartography tool. ICA publications, Beijing, 2649 – 2657, ISBN 7-5030-1018-5, 2001.

Ogao, P.J. and M-J., Kraak. (2000). Dynamic data presentation and the WWW. Published in IAPRS, Amsterdam, ISSN 1682-1750, (33), B4/2:755-761, 2000.

Sensalire, M. and Ogao, P.J. (2007). Visualizing Object Oriented Software: Towards a Point of Reference for Developing Tools for Industry. In proceedings of the 4th IEEE International Workshop on Visualizing Software for Understanding and Analysis (VISSOFT).

Tibenderana, P.K.G., Ogao, P.J. and Ikoja-Odongo, J.R. (2007). A Framework for Evaluating end-Users’ Acceptance and Use of electronic Library Services in Universities in Technologically Marginalized countries: A modification in the Unified Theory of Acceptance and Use of Technology. In JCDL Doctoral Workshop Proceeding, June 18-23, Vancouver, British Columbia, Canada.

Aseno, J.O. and Ogao, P.J. The Need for Coordinate Transformation to Enhance Crustal and Structural Deformation monitoring in Kenya. (Eds) Aseno, J.O, and Obel, J.D. In the proceedings of the 4th International symposium on RCMA, 28th November – 2nd December, 1995.

Prof. Patrick J. Ogao
+254 (0) 713 681 753