Name: Dr. DC Wickramarachchi
Position: Senior Lecturer
Qualifications
Teaching Areas
Research Interests
Publications
Working Experience
Awards
Qualifications
- B.Sc. Special (Stat.) University of Sri Jayewardenepura
- M.Sc. (App. Stat.) University of Peradeniya
- M.Phil. (Stat.) University of Peradeniya
- PhD University of Canterbury, New Zealand
Teaching Areas
- Applied Statistics
- Data Mining
Research Interests
- Data Mining
- Decision Tree Construction Algorithms
- Applied Statistics.
Publications
- Diagnosing autism in low‐income countries: Clinical record‐based analysis in Sri Lanka., Peiris, H., Wickramarachchi, D. C., Samarasinghe, P., Vance, P., Dahanayake, D., Kulasekara, V., & Nadeeshani, M. (2022). Autism Research, 15(7), 1358-1367.
- A group of representative measures of a set of time series and its decision support: a trial for dengue incidence data of Sri Lanka. Waduge, C. P., Ganegoda, C., Wickramarachchi, D. C., Lokupitiya, R. S., & Lanel, G. H. J. (2022). International Journal of Information and Decision Sciences, 14(3), 260-288.
- Consensus Patterns of a Set of Time Series via a Wavelet-Based Temporal Localization: Emphasizing the Utility over Point-Wise Averaging and Averaging under Dynamic Time Warping., Ravindra Shanthakumar Lokupitiya, Chekhaprabha Priyadarshanee Waduge, Naleen Chaminda Ganegoda, DC Wickramarachchi, (2021) Journal of Applied Mathematics
- A reflected feature space for CART, Wickramarachchi, D. C., Robertson, B. L., Reale, M., Price, C. J., & Brown, J. (2019), Australia New Zealand Journal of Statistics 61(3), 380-391.
- Development of rapid, sensitive and specific DNA-based method to detect Ralstonia solanacearum in potato for quarantine purposes, A.A.U. Perera, O.V.D.S.J. Weerasena, P.N. Dasanayaka and D.C. Wickramarachchi, (2018), Journal of A Study on Online User Generated Reviews on Hospitality Industry in Sri Lanka (Abstract), S T C Perera and D C Wickramarachchi, International Conference on Statistics for Good Governance 2017.
- Developing an Alternative Method to Categorize Small and Medium Enterprises in Sri Lanka (Abstract), K A H P Perera, D C Wickramarachchi and J S N P Dhamawardena, International Conference on Statistics for Good Governance 2017.
- Proposing an Alternative Method to Identify the Best Influencers of a Cellular Network Using Social Network Data Analysis (Abstract), N A H W S Chathuranga, D C Wickramarachchi, International Conference on Statistics for Good Governance 2017.
- Response of tropical birds to habitat modifications in fragmented forest patches: A case from a tropical lowland rainforest in south-west Sri Lanka, P. Perera, S. Wijesinghe, N. Dayawansa, S. Marasinghe and C. Wickramarachchi, Community Ecology 18(2), 175-183, 2017.
- HHCART: An oblique decision tree: Wickramarachchi, D. C., Robertson, B. L., Reale, M., Price, C. J., & Brown, J. (2016). Computational Statistics & Data Analysis, 96, 12-23.
- Oblique Decision tree Induction with HHCART: Wickramarachchi, D. C., Robertson, B. L., Reale, M., Price, C. J., & Brown, J.(2014), Joint conference of the NZ Statistical Association and Operation Research Society
- Use of Decision Trees in Statistical Data Classification: Wickramarachchi, D. C., Robertson, B. L., Reale, M., Price, C. J., & Brown, J. (2014) Canterbury Statistics Day Research
- Oblique decision trees using Householder reflection: Wickramarachchi, D. C., Robertson, B. L., Reale, M., Price, C. J., & Brown, J. (2012). Canterbury Statistics Open Day – University of Canterbury.
- An Algorithm to Detect Over-Dispersion in Multinomial Data, D C Wickramarachchi, S Samita, T S G Peiris, Second International Statistics Conference 2009 conducted by Applied Statistic Association of Sri Lanaka
- A test based on heterogeneity factor to detect over-dispersion in multinomial data, D C Wickramarachchi, S Samita, T S G Peiris, Proceeding of the 11th AGM of Applied Statistics Association of Sri Lanka
- Estimation of stature using head circumference, Induwara Gooneratne A, Munasinghe M A M and Wickramarachchi D C, 9th Indo-Pacific Congress in Legal Medicine – 2007 Colombo
Working Experience
- 20 + years as a Senior Lecturer, Department of Statistics University of Sri Jayewardenepura
- 2012-2015 – Teaching Assistant, School of Mathematics and Statistics, University of Sri Jayewardenepura
- 2020-2022 – President, Institute of Applied Statistics, Sri Lanka
- 2022-Todate- Immediate Past President/Co-chairperson, R&D subcommittee, Institute of Applied Statistics Sri Lanka
Awards
- University of Canterbury Doctoral Scholarship – 2011
- University of Canterbury International Doctoral Scholarship – 2012
- The student obtains the highest GPA of the first semester examination in M.Sc. in Applied Statistics -2007