Research - Chaya Weerasinghe – Chaya Weerasinghe

Research

Here you will find my research publications and working papers, together with links to the corresponding articles and preprints.

Rationale and guidance for implementing the continual reassessment method for dose-finding in controlled human infection model studies

medRxiv preprint

Preprint Controlled human infection models Bayesian continual reassessment method Dose-finding design Bayesian adaptive designs

Chaya Weerasinghe, Joshua Osowicki, Julie A. Simpson, Tim Crocker-Buque, James McCarthy, Eloise Williams, David J. Price

Jul 17, 2026

Robustifying Approximate Bayesian Computation

arXiv preprint arXiv:2504.04733

Preprint 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

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

Sep 1, 2022

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

Mar 1, 2022

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

Dec 1, 2021

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

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