• Operational Research
• Time series analysis
• Multivariate Statistics
• Sampling Techniques
• Mathematical/Statistical Modelling

Indexed Journal Papers:

1. A.M.C.H. Attanayake, “Vaccination Coverage for COVID-19 in Sri Lanka: With and Without Age Stratification on Susceptible-Infectious-Recovered Simulation”, Journal of Occupational Health and Epidemiology, vol. 11, no. 2, pp. 91-98, 2022. 
2. A.M.C.H. Attanayake and S. S. N. Perera, ”Forecasting COVID-19 Cases Using Alpha-Sutte Indicator: A Comparison with Autoregressive Integrated Moving Average (ARIMA) Method”, BioMed Research International, vol. 2020, no. 8850199, 11 pages, 2020. 
3. A.M.C.H. Attanayake, S. S. N. Perera and S. Jayasinghe, ”Phenomenological Modelling of COVID-19 Epidemics in Sri Lanka, Italy, the United States, and Hebei Province of China”, Computational and Mathematical Methods in Medicine, vol. 2020, no. 6397063, 15 pages, 2020. 
4. A.M.C.H Attanayake, S.S.N. Perera and U.P. Liyanage, “Combining Forecasts of ARIMA and Exponential Smoothing Models”, Advances and Applications in Statistics, Pushpa Publishing House, Allahabad, India, vol.59, no.2, pp. 199-208, 2019. 
5. A.M.C.H Attanayake, S.S.N. Perera and U.P. Liyanage, “Multiple Linear Regression Models on Interval-valued Dengue Data with Interval-valued Climatic Variables”, International Journal of Applied Mathematics and Statistics, vol.59, no.3, pp. 49 – 60, 2020. 
6. A.M.C.H Attanayake, S.S.N. Perera and U.P. Liyanage, “Negative Binomial Regression + Autoregressive Integrated Moving Average Modelling of Dengue Disease in Colombo, Sri Lanka”, Advances and Applications in Statistics, Pushpa Publishing House, Allahabad, India, vol.64, no.1, pp. 103 – 112, 2020. 
7. A.M.C.H Attanayake, N. Liyanage, “Trend Analysis of Financial Performance of the Bank of Ceylon, Sri Lanka”, Advances and Applications in Statistics, Pushpa Publishing House, Allahabad, India, 70, 2, pp. 235 – 248, 2021.
8. H.L.S. Madurangee, A.M.C.H. Attanayake,, D.D.M. Jayasundara, ‘Instrument to Measure Safety Climate: An Application to a Tyre Manufacturing Plant’, International Journal of Ecological Economics and Statistics, 42, 2, pp.71 – 83,2021.
9. A.M.C.H Attanayake, ‘Fuzzy Regression: An Application to Heart Disease’, Advances and Applications in Statistics, Pushpa Publishing House, Allahabad, India, 70, 2, pp. 219 – 227, 2021.
10. A.M.C.H. Attanayake, D.D.M. Jayasundara, T.S.G. Peiris, ‘An Application of 5-fold Cross Validation on a Binary Logistic Regression Model’, Advances and Applications in Statistics 2016, Pushpa Publishing House, Allahabad, India, vol.49, no. 6,pp.443 – 451. 

Non-Indexed Journal Papers:

1. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Exponential smoothing on forecasting dengue cases in Colombo, Sri Lanka”, Journal of Science, Eastern University, Sri Lanka, vol.11, no.1, pp. 11–22, 2020. DOI: http://doi.org/10.4038/jsc.v11i1.24.
2. A.L. Chanika, A.M.C.H. Attanayake, M.D.N. Gunaratne, ‘Identifying Factors Associated with Price Categories of Motorcycles in Sri Lanka using Discreminant Analysis’, Journal of New Frontiers in Mathematics and Statistics, Institute of Mathematics and Management, Sri Lanka, 1, 1, pp. 16–25. 2020. 
3. G.D.P. Gunarathne, A.M.C.H. Attanayake, D.D.M. Jayasundara, ‘Modeling the Major Ailments of Petroleum Workers with associated Risk Factors using Logistic Regression Approach’, International Journal of Science and Research 2016, Vol.5, Issue 8, DOI: 10.21275/ART2016738. 

Conference Proceedings – Full Paper:

1. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Inappropriateness of ARIMA type models in forecasting dengue cases in Colombo, Sri Lanka”, Jaffna University International Research Conference (JUICe), Faculty of Medicine, University of Jaffna, Sri Lanka, pp. 567-569, 2018.
2. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Forecasting Dengue Cases in Colombo, Sri Lanka using Negative Binomial Regression + Exponential Smoothing”, ASAIHL International Conference, University of Kelaniya, Sri Lanka, pp. 54-63, 2019.
3. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “ARIMA Models over Dengue Cases Reported in Colombo and Jakarta”, 9th YSF Research Symposium, Young Scientists Forum, National Science and Technology Commission, Sri Lanka, pp. 46-51, 2020.
4. A.L. Chanika, A.M.C.H. Attanayake, M.D.N. Gunaratne, ‘Perceived Value Analysis of Motorcycles in Sri Lanka’, International Proceedings of Multidisciplinary Research and Applications, Faculty of Science, University of Kelaniya, vol. 1, January 2022.
5. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Inappropriateness of ARIMA type models in forecasting dengue cases in Colombo, Sri Lanka”, Jaffna University International Research Conference (JUICe), Faculty of Medicine, University of Jaffna, Sri Lanka, pp. 567-569, 2018.

Conference Proceedings – Abstract:

1. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Spatial-Temporal Risk Mapping for Dengue Disease in Colombo, Sri Lanka”, International Conference on Mathematical Sciences and Technology 2018, University Sains, Malaysia, pp. 87,2018.
2. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Time Series Decomposition: An Application to Dengue Data with Climatic Variables”, Rajarata International Research Conference 2019, Rajarata University, Sri Lanka, pp. 108, 2019.
3. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “A Fuzzy Linear Model using Possibilistic Linear Regression with Least Squares Method: An Application to Dengue and Rainfall Data”, 20th International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, pp. 77, 2019.
4. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Granger Causality between Dengue and Climatic Variables in Colombo, Sri Lanka”, International Science and Technology Conference 2020, University of Ruhuna, Matara, Sri Lanka, pp. 145, 2020.
5. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “Comparison of Performances of Selected Forecasting Models : An Application to Dengue Data in Colombo, Sri Lanka”, 21st ECMI Conference on Industrial and Applied Mathematics, University of Wuppertal, Germany, 2021.
6. K. Weththasinghe, A.M.C.H. Attanayake, U.P. Liyanage and S.S.N. Perera, “Dengue Management System Synergize by an Exponential Smoothing Model”, 21st ECMI Conference on Industrial and Applied Mathematics, University of Wuppertal, Germany, 2021.
7. A.M.C.H. Attanayake, S.S.N. Perera and U.P. Liyanage, “ARIMA and ARIMAX Modelling of Dengue Cases in Jakarta”, International Conference on Multidisciplinary Approaches in Science 2021, Faculty of Science, University of Colombo, Sri Lanka, pp. 143, 2021.
8. A.M.C.H. Attanayake, H.O.W. Peiris and S.S.N. Perera, ”Interval Regression based on Interval Least Squares Algorithm: A Noval Approach for Predicting Dengue Cases”, International Conference on Mathematical Modelling, Applied Analysis and Computational Intelligence (ICMMAACI-2022),The Gandhigram Rural Institute (Deemed to be University), Gandhigram,India, pp. 58-59, 2022.
9. D. Aldeniya, A.M.C.H. Attanayake, S.K.P. Eranga and S.S.N. Perera, ”Spatial-Temporal Distribution of Dengue based on Climatic CHaracteristics in Sri Lanka”, International Conference on Mathematical Modelling, Applied Analysis and Computational Intelligence (ICMMAACI-2022), The Gandhigram Rural Institute (Deemed to be University), Gandhigram, India, pp. 100-101, 2022.
10. A.M.C.H. Attanayake and S.S.N. Perera, ”Modelling COVID-19 Cases in Sri Lanka using ARIMA Models”, Open University Research Sessions 2020 (OURS 2020), The Open University, Sri Lanka, pp. 117,2020.
11. M.Y.E. Marasinghe, A M C H Attanaake, S.K.P. Eranga and S.S.N. Perera, ”Evolution of COVID-19: Analysis through Growth Models”, International Conference on Multidisciplinary Approaches in Science (ICMAS 2021), Faculty of Science, University of Colombo,pp. 23, 2021.
12. G.A.K. Madhubhashini, A.M.C.H. Attanayake, D.J.C. Suriaarachchi, ‘Factors associated with Severity of Road Accidents in Gampaha Police division in Sri Lanka’, International Research Symposium on Pure and Applied Sciences 2018, Faculty of Science, University of Kelaniya, Sri Lanka.
13. A.R.C. Dassanayake, H.N.A.M. Wijayawardhana, L. M. Premathilaka, S.A.K.B. Senarath, W. M. D. D. Weerasekara, K.H.K.D.S. Thilakarathne, H. R. Goonetilleke, B.H.S. Sandaruwan, W.T.D. Winisinghe, J.L.S.M. Kumara, A.M.C.H. Attanayake,’ Study on the selection of mobile service providers: Special reference to the students at Faculty of Science, University of Kelaniya.’, International Research Symposium on Pure and Applied Sciences 2017, Faculty of Science, University of Kelaniya, Sri Lanka.
14. B. U. Sandamali, G. L. I. Dhananjani, M. A. S. N. Manchanayake, M. S. H. Perera, P. A. L. Madhushika, P. G. Y. Jayasanka, E. C. D. Edirisinghe, R. A. N. M. Premathilaka, M. O. S. Rajapaksha, A. P. D. S. Senewirathne, A.M.C.H. Attanayake,’ Survey on usage of university main library by undergraduates of Faculty of Science, University of Kelaniya.’, International Research Symposium on Pure and Applied Sciences 2017, Faculty of Science, University of Kelaniya, Sri Lanka.
15. Dhananjani W.T., Dias S.N.U.P.,Fernando T.S.D., Kumara M.S.M.S., Manamperi D.K.S., Pramoda K.A.D.A., Priyasad H.A.D., Rashmi W.A.D., Ravindran U.M., Sandaruwan D.M.S., Pitigalaarachchi P.A.A.C., Attanayake A.M.C.H., ‘A survey on usage of canteens of university of kelaniya by students of faculty of science’, International Research Symposium on Pure and Applied Sciences 2016, Faculty of Science, University of Kelaniya, Sri Lanka.
16. Gunawardana K.M.A.R.S., Madhubhashini M.G.A.K., Madhumali N.G.M., Nanayakkara K.A.D.C.N., Nuwanthika G.G.T., Pandgamage I.D., Rangari S.C., Samanpitiya H.M.I., Sandamali H.D.S., Sandhamali N.P.A.A., Pitigalaarachchi P.A.A.C., Attanayake A.M.C.H., ‘Study on monthly expenditures of undergraduates of faculty of science, university of kelaniya’, International Research Symposium on Pure and Applied Sciences 2016, Faculty of Science, University of Kelaniya, Sri Lanka.
17. A.M. C. H. Attanayake, W. D. Lakmal, T. K. Hewapathirana, ‘ A remedy to Heteroscedasticity: A tool using Minitab Macros’, International Statistical Conference 2009, Applied Statistics Association of Sri Lanka, Vidya Mawatha, Colombo 07, Sri Lanka.
18. A.M. C. H. Attanayake, T. K. Hewapathirana, ‘A Univariate Box-Jenkins model to predict relative humidity levels in Puttalam at night’, Annual Research Symposium 2008, Faculty of Graduate Sciences, University of Kelaniya, Kelaniya.
19. A.M. C. H. Attanayake, T. K. Hewapathirana, ‘Development of a Minitab Macro program as a remedy to overcome heteroscedasticity in linear regressions’, Annual Research Symposium 2008, Faculty of Graduate Sciences, University of Kelaniya, Kelaniya.

Book Chapters:

1. A.M.C.H. Attanayake and S.S.N. Perera, Time Series Analysis for Modeling the Transmission of Dengue Disease, Recent Advances in Time Series Forecasting, edited by Dinesh C. S. Bisht, Mangey Ram, CRC Press, 25 pages, 2021.
2. A.M.C.H. Attanayake and S.S.N. Perera, Recent Trends in Interval Regression: Applications in Predicting Dengue Outbreaks. In: Chakraverty S. (eds) Soft Computing in Interdisciplinary Sciences. Studies in Computational Intelligence, vol 988. Springer, Singapore, 2022. https://doi.org/10.1007/978-981-16-4713-0 1.
3. A.M.C.H. Attanayake, S.S.N.Perera and U.P. Liyanage, Comparison of Performances of Selected Forecasting Models: An Application to Dengue Data in Colombo, Sri Lanka. In: Ehrhardt, M., G ̈unther, M. (eds) Progress in Industrial Mathematics at ECMI 2021. ECMI 2021. Mathematics in Industry, vol 39. Springer, Cham, 2022.
4. W.A.U.K. Wetthasinghe, A.M.C.H. Attanayake, U.P.Liyanage, S.S.N. Perera, Proactive Dengue Management System Synergize by an Exponential Smoothing Model. In: Ehrhardt, M., G ̈unther, M. (eds) Progress in Industrial Mathematics at ECMI 2021. ECMI 2021. Mathematics in Industry, vol 39. Springer, Cham, 2022.

• Vice Chancellor’s Awards 2022 – University of Kelaniya – The most outstanding young researcher in the Faculty of Science, University of Kelaniya – Merit award.
• Vice Chancellor’s Awards 2021 – University of Kelaniya – The most outstanding Senior researcher in the Faculty of Science, University of Kelaniya – Merit Award.
• Vice Chancellor’s Awards 2020 – University of Kelaniya – The most outstanding young researcher in the Faculty of Science, University of Kelaniya – First Place.
• Two Senate Honours certificates for Publications in indexed journals. Presented at the 350th Senate held on 24th March 2021, University of Kelaniya.
• Two Senate Honours certificates for Publications in indexed journals. Presented at the 349th Senate held on 25th February 2021, University of Kelaniya.
• Senate Honours certificate for Publication in indexed journals. Presented at the 344th Senate held on 23rd of September 2020, University of Kelaniya.
• Best Presenter Award in “Natural Sciences and Mathematics” Track at the Rajarata International Research Conference, Rajarata University of Sri Lanka, November 2019.
• First Runner-up at the Awards for the Best Research Projects 2016 competition (Post-graduate Category) organized by the Institute of Applied Statistics, Sri Lanka.
• Senate Honors and a monetary price were presented at the senate which was held on 1 st of March 2017 for conducting high quality research and publishing in indexed journals in the year 2016.