• Mathematics for Technology I 

• Mathematics for Technology II

• Mathematics for Technology III

• Mathematics for Computer Science II

• Time Series Analysis for Data Science

• Medical Imaging optimized reconstruction with nonparametric approaches

• Geological stimulation and uncertainty evaluation

• Dynamic linear modeling

• Machine learning

• Data science

• Statistics

• Text analysis

• Classification models

• FMRI image based classification

• Member of Society of Industrial Applied Mathematics (SIAM)

• Member of American Mathematical Society

• Member of American Statistical Association

• Member of Institute of Mathematical Statistic

• Pi Mu Epsilon (Florida Eta Chapter)

• Associate Member of British computer Society

• L.E.A.R.N. Graduate Research Mentor, Office of Undergraduate Research, University of Central Florida

• Academic Mentor and Teaching Mentor for junior graduate student, University of Central Florida, Mathematics

• Chapter president University of Central Florida SIAM

• Chapter president University of North  Florida SIAM

University of Kelaniya Awards 

• Best portfolio report certificate in the staff development program. Year (2022)

• Best paper award in 8th International Conference on Advances in Technology and Computing (ICATC) 2023

• Vice-Chancellor's Awards - 2023 - The outstanding young researcher in the Faculty of Computing and Technology

• Vice-Chancellor's Awards - 2023 - The researcher with highest no of publications in indexed journal in the Faculty of Computing and Technology

Research Grant Awards 

• Competitive Research Grant of Science and Technology, Human Resource Development Project Round 3 proposal  -"Automated AI job recommendation, optimize and analysis system ", Year (2023)

• Internal research grant University of Kelaniya- "Functional brain connectivity in resting state FMRI analysis using machine learning, deep learning algorithm", Year (2023)

• AI-Powered Population-based Birth Cohort Study in the Western Province of Sri Lanka from  the Project Management Unit of the Artificial Intelligence for Sexual and Reproductive Health for South Asia. Collaborate with University of Colombo, Faculty of Medicine 

External Awards

• Nominated for “UCF Order of Pegasus 2019” (highest award for UCF student) (2019) 

• Travel award to Recent Developments on Math/Stat approaches in Data (2019) 

• Travel award AMS Spring Southeastern Sectional Meeting 2019 

• Grad Student Travel Grant to the Joint Mathematics Meetings 2019  

• Travel award, SIAM Conference on Computational Science and Engineering 2019

• In recognition of outstanding efforts and accomplishment (2018) UCF Society for Industrial and Applied Mathematics chapter  

• 50th student body senate UCF (senator UCF college of graduate studies) (2018) recognition award

• Presentation Fellowship Award from UCF (2018,2019) 

• SGA Travel Award from UCF (2019) 

• Industrial Math/Stat Modeling Workshop Travel Award (2018 ) 

• Full award Symposium on Data Science & Statistics (2018) from The Statistical and Applied Mathematical Sciences Institute

• American Statistical Association Registration Award 

• Society for Industrial and Applied Mathematics Travel Award 2018

• Travel Award , Joint Meetings of The Florida Section of The Mathematical (2018) Association of America 

• Travel Award Summer Institute-University of Washington Biostatistics (2017) 

• Travel Award 2013 Society for Industrial and Applied Mathematics Annual Meeting (2013) (Travel support form UNF student Government ) 

• Rasika Rajapakshage and  Marianna Pensky, 2020.Is Clustering Advantageous in Statistical Ill-Posed Linear Inverse Problems?. IEEE Transactions on Information Theory  https://ieeexplore.ieee.org/document/9159654

• Timothy J. Robinson, Richard C. Giles and Rasika Rajapakshage. 2020, Discussion of “Experiences with big data: Accounts from a data scientist’s perspective”. Quality Engineering 32(4):1-7   https://www.tandfonline.com/doi/full/10.1080/08982112.2020.1758333

• Rida Benhaddou,Marianna Pensky and Rasika Rajapakshage. 2017, Anisotropic functional Laplace deconvolution,Journal of Statistical Planning and Inference <br>  https://www.sciencedirect.com/science/article/abs/pii/S0378375818301472

• Opeyemi E. Oluwatuyi; Rasika Rajapakshage, Ph.D.; Shaun S. Wulff, Ph.D.;   and Kam Ng, Ph.D., M.ASCE. 2022 Quantifying Geological Uncertainty Using Conditioned Spatial Markov Chains https://ascelibrary.org/doi/abs/10.1061/9780784484036.043

• Opeyemi E. Oluwatuyi, Rebecca Holt, Rasika Rajapakshage, Shaun S. Wulff & Kam Ng. 2022 Listen Research Article Inherent variability assessment from sparse property data of overburden soils and intermediate geomaterials using random field approaches https://www.tandfonline.com/doi/abs/10.1080/17499518.2022.2046783

• Mapatuna, P.T.; Rajapaksha, R.R.L.U.I.; Wijerathne, J.K. 2011 Forecasting Foreign Exchange Rate using the Kalman Filter Approach http://192.248.93.15/handle/123456789/7332

• Oluwatuyi, O. E., Rajapakshage, R., Wulff, S. S., & Ng, K. (2023). Proposed hybrid approach for three-dimensional subsurface simulation to improve boundary determination and design of optimum site investigation plan for pile foundations. Soils and Foundations, 63(1), 101269. https://doi.org/10.1016/j.sandf.2022.101269

• Lai, M., Wulff, S., Cao, Y., Robinson, T., & Rajapaksha, R. (2023). An interpretable time series machine learning method for varying forecast and nowcast lengths in wastewater-based epidemiology. MethodsX, 11, 102382. https://doi.org/10.1016/j.mex.2023.102382 

• Predictive Analysis on Social Media Content to Become Viral https://www.researchgate.net/publication/381852269 Predictive_Analysis_on_Social_Media_Content_to_Become_Viral