Research

Here, you will find my working papers and research publications,
each with a corresponding link.

Robustifying Approximate Bayesian Computation
arXiv preprint arXiv:2504.04733.
Working paper
Model misspecification
Approximate Bayesian computation
Robust Bayesian inference
Chaya Weerasinghe, David T. Frazier, Rubén Loaiza-Maya, Christopher Drovandi
Apr 7, 2025
ABC-based forecasting in misspecified state space models
International Journal of Forecasting, 40(1), 270-289.
Journal article
Model misspecification
Approximate Bayesian computation
Loss-based prediction
Chaya Weerasinghe, Rubén Loaiza-Maya, Gael M. Martin, David T. Frazier
Jun 19, 2024
Impact of COVID-19 pandemic on education and mental health of physical science undergraduates in the Faculty of Science, University of Kelaniya
COVID 19: Impact, Mitigation, Opportunities and Building Resilience - Perspectives of global relevance based on research, experience and successes in combating COVID-19 in Sri Lanka, 263-273, Publisher: National Science Foundation (NSF), Sri Lanka, ISBN: 978-624-5896-00-4.
Conference proceeding
Cross-Sectional analysis
CLsuter analysis
Covid-19
N.V. Chandrasekara, W.P.M.C.N. Weerasinghe, B.R.P.M. Basnayaka
Jul 1, 2021
Future milk production prospects in India for various animal species using time series models
Indian Journal of Animal Research, 56(9), 1170-1175.
Journal article
Time series models
Forecasting
Empirical application
M. Devi, U.H. Rahman, W.P.M.C.N. Weerasinghe, P. Mishra, S. Tiwari, K. Karakaya
Jun 19, 2021
Modeling and forecasting of milk production in the SAARC countries and China
Modeling Earth Systems and Environment, 8, 947–959.
Journal article
Time series models
Forecasting application
P.Mishra , A. Matuka, M. S. A. Abotaleb, W. P. M. C. N. Weerasinghe, K. Karakaya, S. S.Das
Feb 26, 2021
Modelling pepper export income in Sri Lanka using deterministic decomposition and seasonal ARIMA models
Statistics and Applications, 19(2), 89-100.
Journal article
Time series models
Forecasting
Empirical application
W.P.M.C.N. Weerasinghe, D.D.M. Jayasundara
Feb 19, 2021
Modelling and forecasting the unit cost of electricity generated by fossil fuel power plants in Sri Lanka
International Journal of Sciences: Basic and Applied Research (IJSBAR), 51(2), 163-178.
Journal article
Time series models
Forecasting
Empirical application
W.P.M.C.N. Weerasinghe, D.D.M. Jayasundara
May 12, 2020
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