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Prof. Sarath Peiris

Head | Mathematics Unit

Faculty of Humanities & Sciences | Mathematics Unit

Career Summary

Dept. of Engineering Mathematics, Faculty of Engineering, University of Peradeniya, Sri Lanka

  1.      Temporary Instructor                       (Oct 1979 -  Sep 1980)

   Biometry Division, Coconut Research Institute (CRI, Lunuwila, Sri Lanka)

  1. Statistician                                                                    (Oct 1980 -  April 1986)
  2. Senior Statistician                                                          (May 1986 -   Dec 1991)
  3. Principal Statistician                                                      (Jan 1992 -  May 2004)
  4. Principal Statistician & Head, Biometry Division             (Jun 2004 -  Aug 2007)

 

Department of Mathematics, University of Moratuwa, Sri Lanka

  1. Senior Lecturer Grade I                                            (Aug 2007 - Jan 2011)
  2. Professor in Applied Statistics                                  (Jan 2011 – Jan 2019)
  3. Head, Dept. of Mathematics                                    (Jun 2012  - June 2018)
  4. Senior Professor in Applied Statistics                        (Jan, 2019 to October 2020)

SLIIT

  1. ·   Professor and Head / Mathematics                             (01 Jan 2021 to date) 

ACADEMIC QUALIFICATIONS

Educational Qualification

·        B. Sc. (First Class Honours), University of Colombo, Sri Lanka - 1979

·        M. Sc. (Statistics), University of Canterbury, New Zealand - 1985

·        Ph. D. (Applied Statistics), University of Colombo, Sri Lanka – 1996 

 

HONOURS AND AWARDS

Research Interests and Memberships

Research Interests

  • ·     Data Mining Techniques in Multivaraite  Statistics 
  • ·     Regression Modelling
  • ·     Climate Change Analysis and Assessment
  • ·     Time Series Forecasting
  • ·     Teaching Statistics

  Supervision of Research Students (Ph D/M Phil)

            Completed :                  3 -  Ph Ds, and 9 - M Phils

    Supervision of M. Sc. Projects for Taught Course (20 credits per project)

            Completed:                   49

            On Going:                    09

Memberships

Professional Qualification

Fellow of the Institute of Applied Statistics Sri Lanka (IASSL) since 2016.

Fellow of Royal Statistics Society (FRSS), UK since 2010.

Ongoing Research

Modeling Persistent and Periodic Weekly Rainfall in an Environment of an Emerging Sri Lankan Economy.  Springer Nature Switzerland , V Kreinovich et. al. (Eds), ECONVN, SCI 808, 314-328.

 

 

4)          Silva, H P T N and Peiris T S G (2018). Accurate Confidence Interval for Weibull Percentiles Using Bootstrap Calibration: A case study from weekly rainfall in Sri Lanka. International Journal of Ecological Economics and Statistics.  39(3), 67-76.

 

5)          Sameera Senanayake, Nalika Gunawardena, Paba Palihawadana, Sanjeewa Kularatna and Peiris, T S G (2017).  Validity and reliability of the Sri Lankan version of the Kidney Disease Quality of Life Questionnaire (KDQOL-SF™), Journal of Health and Quality of Life Outcomes, 15,119, 1-9

 

6)          Silva, H P T N and Peiris T S G (2017). Analysis of Weekly Rainfall using Percentile Bootstrap Approach. International Journal of Ecology and Development, 32(3), 97-107.

 

7)          Nanayakkara, K A D S A and Peiris, T S G (2017). Influence of  Mathematics on Academic Performance of Engineering Students: PLS-SEM Approach. Communication in Statistics Case Studies and Data Analysis.

 

8)          Peiris, T S G and Nanayakkara, K. A. D. S. A. (2017). Application of Adjusted Canonical Correlation Analysis (ACCA) to study the association between mathematics in Level 1 and Level 2 and performance of engineering disciplines in Level 2. Journal of Physics: Conference Series 890 012092, 1-12.

 

9)          Attanayake, A M C H, Jayasundara, D D M and Peiris, T S G (2016). An Application of 5-Fold Cross validation on a Binary Logistic Regression Model. Advances & Applications in Statistics. 49(6), 443-461.

 

10)       Nanyakkara K. A. D. S. A. and Peiris, T. S. G. (2016).  Impact of Mathematics in Level 1 on the Academic Performance of Engineering Students: A Case Study. International Journal of Applied Statistics and Statistical Sciences, 5(4), 1 -8.

 

 

11)       Nanayakkara K A D S A and Peiris, T. S. G.  (2016). Application of Canonical  Correlation Analysis to Study the Influence of Mathematics on Engineering Programs. Proceedings of the ERU Symposium, University of Moratuwa, IEEE (978-1-5090-0645.

 

12)       Razmy A. M. & Peiris T. S. G. (2014). Comparison of Rectangular and Elliptical Control Region EWMA Schemes for Joint Quality Monitoring, Open Journal of Statistics, 4 (11), 970 -976.

 

13)       Yadharshny Sivapragasam, and Peiris T. S. G. (2014). Factors Effecting on Internet Banking Adoption: A Case Study.  Asian Journal of Business and Management (AJBM),  Vol.2(4), 232-239.

 

 

14)       Razmy, A. M.  and Peiris, T. S. G. (2013).  Design of Expoenetially Weighted Moving Average Chart for Monitoring Standardized Process Variance.  International Journal of Engineering and Technology. Vol 13 , 74-78.

 

15)            Mathugama S. C. and Peiris T. S. G. (2012). Spatial  and Temporal Analysis of Critical Dry Spells in Sri Lanka. The International J of Climate Change: Impacts and Responses. International Journal  of Climate Change: Impacts and Response. 3(3): 71-88.

 

16)            Mathugama S. C. and Peiris T. S. G. (2011).   Critical Evaluation of Dry Spell Research. International J of Basic and Applied Sciences,  11 (6), 153-160.

 

17)            Peiris, T. S. G., Hansen, J. W. and Lareef, Zubair (2008).  Use of seasonal climate information to predict coconut production in Sri Lanka.   International. J of Climatology, 28: 103-10.

18)             

19)            Siriwardena, P. H. A., Fernando, L. C. P. and Peiris, T. S. G. (2005).  A new method to estimate the population size of coconut mite on a coconut nut.  J. of Experimental and Applied Acarology, Nertherlands.  37, 123-129.

 

20)            Marikkar, J. M. N., H. M. Ghazali, Y.B. Che Man, Peiris, T. S. G. and O.M. Lai. (2005). Distinguishing lard from other animal fats in admixtures of some vegetable oils using liquid chromatographic data coupled with multivariate data analysis. Food Chemistry, 91, 5-14.

 

21)            Marikkar, J. M. N., H. M. Ghazali, Y.B. Che Man, Peiris, T. S. G. and O.M. Lai. (2005). Use of gas liquid chromatography in combination with pancreatic lipolysis and multivariate data analysis techniques for identification of lard contamination in some vegetable oils  Food Chemistry, 90, 23-30

 

22)            Fernando, L.C.P., Aratchige, N. S., Peiris, T. S. G. (2003). Distribution patterns of coconut mite, Aceriaguerreronis and its predator Neoseiulusaff. paspalivorus in coconut palms. J. of Experimental and Applied Acarology. 31, 71-78.

 

23)            Peiris, T. S. G. and Thattil, R. O. (1998).  The study of climate effects on the nut yield of coconut using parsimonious models.  J. of Experimental Agriculture, 34, 189-206.

 

24)            Peiris, T. S. G., Thattil, R. O., and Mahindapala, R. (1995).  An analysis of the effect of climate and weather on coconut (Cocosnucifera).  J. of Experimental Agriculture, 31 (4), 451-460.

 

25)            Peiris, T. S. G. (1993).  Statistical analysis of field experiments in coconut using fewer recordings, J. of Experimental Agriculture. (29), 207-213.

 

 

Publications  in Refereed non-indexed Journals (National and International

 

1)             Jayathilake Amali and Peiris, T S G (2017). Modelling Aging Population in Sri Lanka. Cities People Places : An International Journal on Urban Environments. 2(2). 40-46

 

2)            Dewappriya M A N, Dias, W P S and Peiris, T S G (2017). Modelling of Tsunami Intensity Using Artifical Neural Network and Fuzzy Inference System.  International Journal of Scientific and Engineering Research, 8(6), 1-7.

 

3)            Razmy, AM  and Peiris, T. S. G. (2013).  Design of Expoenetially Weighted Moving Average Scheme for Standardized Means.  Sri Lanka Journal of Applied Statistics. Vol (14-2), 145-152.

 

4)          Peiris, T. S. G. and Kularatne, J. D. J. S. (2008). Assessment of Climate Variability for Coconut and Other Crops: A Statistical Approach. International Journal of Coconut Research & Development (CORD). 24(1) 35-53

 

5)          Kularatne, J. D. J. S., Peiris, T. S. G. and Samita, S. (2008). Impact of   Covariate on Single Palm Plot Experiments in Coconut. International Journal of Coconut Research & Development (CORDCORD, 24(2), 10-20.

 

6)          Cooray, T. M. J. A. and Peiris, T. S. G. (2008). Day and Night, Electricity Load Forecasting for Peaks Values in Sri Lanka.  Sri Lanka Journal of Applied Statistics, 9, 121-131.

 

7)          Wickramananda, I. R., Peiris, T. S. G., Neil Fernando, Fernando, L C P and Edgington, S. (2007). Impact of the coconut mite (AcerriaguerreronisKeifer) on the coconut industry in Sri Lanka.  International J of Coconut R & D (Cord), Indonesia, 23(1), 1-16.

 

8)          Peiris T. S. G., K. P. Waidayaratne,.Samita S. and R. O. Thattil (2007).  Control of spatial effect due to neighboring palms in coconut (CocosNucifera).  International Journal on Coconut R & D (CORD), 23(2), 46-57.

 

9)          Pathirage Anuradha Niranji, D P. and Peiris, T. S. G. (2007).  Integrated Time Series Model to Forecast Monthly Nut Price of Coconut.  Sri Lankan Journal of Applied Statistics, 8, 83-94

 

10)       Kularatne, J D J S,  Peiris, T. S. G. and Samita S. (2006).  Feasibility of single palm plot in coconut experimentation.  Journal of Tropical Agricultural Research, 18, 55-62.

 

11)       Waidyarathne K. P, Peiris T. S. G and Samita, S. (2006). Shift in onset of first inter monsoon rain in coconut growing areas in Sri Lanka.  Journal of Tropical Agricultural Research, 18, 1-12.

 

12)       Peiris, T. S. G. (2005).  Spatial aggregation of multidisciplinary data.  Sri Lankan J of Applied Statistics, 5, 29-50.

 

13)       Peiris, T.  S. G., Fernando, M . T. N. and Samarajeewa, S. (2004).  Factors influencing the use of coconut oil by the householders in Sri Lanka and their policy relevance to popularize the consumption, International Journal of Coconut Research &Development(Cord), Indonesia.  20 (2), 12-20.

 

14)       Piyasiri, C. H., Peiris, T. S. G. and Samita S. (2004).  Change in rainfall and temperature of Low Country Wet Intermediate (IL1) Region of Sri Lanka. Journal of Tropical Agricultural Research, 16, 271-280.

 

15)       Peiris, T. S. G., Peiris, T. U. S., and Rajapaksha, S. (2000).  Prediction of annual national coconut production - a stochastic approach.  Sri Lanka J of Applied Statistics, 1 (1), 25-32.

 

16)       Peiris, T. U. S., Peiris, T. S. G., and Samita. S (2000). Arrival of south-west monsoon rains.  Journal ofTropical Agricultural Research, 12, 265-275.

 

17)       Peiris, T.  S.  G., Fernando, M. T. N. and Waidyanatha, U. P. de S (2001). Factors influencing the productivity of coconut estates.  J. of Coconut Research and Development (Cord), Indonesia, 17(2), 36 – 48.

 

18)       Peiris, T.  S.  G. and Thattil, R. O. (1997a).  Assessment of the effects of environmental factors on yield of coconut. Cocos (Journal of the Coconut Research Institute, Sri Lanka) 12, 1-18.

 

19)       Peiris, T. S. G. and Thattil, R. O. (1997b).  Alternative methods to determine optimal plot size for perennial tree crops. Cocos, 12, 44-54.

 

20)       Peiris, T. S. G. and Thattil, R. O. (1996).  Application of agro climatology to some aspects of Coconut research.  J. Plant. Crops (Supplement) in India, 24, 24-35.

 

21)       Peiris, T. S. G. and Thattil, R. O. (1994).  An alternative model to estimate solar radiation.  Cocos , 10, 26-34.

 

22)       Peiris, T. S. G. and Pieris, R. A. A. (1991).  The effect of bimonthly rainfall on coconut yield in the Semi Dry Intermediate Zone (ILl) in Sri Lanka.  Cocos, 9, 1-11.

 

23)       Peiris, T. S. G.  (1989). Forecasting the crop yield of a coconut estate.  International J. of Coconut Research & Development (Cord), Indonesia 5(2), 67?77.

 

24)       Peiris, T. S. G. and Senaviratne, E. K. (1989).  An alternative approach for analysis of data from a long term experiment.  Cocos, 7, 14-20.

 

25)       Peiris, T. S. G. and Stern, R. D. (1988).  Use of statistics package `SAS' in an agricultural research institute: a case study from CRI, Sri Lanka.  Cocos.6, 38?52.

 

 

5.4       Presentations  in Refereed Proceedings – Published as full paper/extended abstract

 

1)                Peiris, T. S. G., & Nanayakkara, K. A. D. S. A. (2017). Application of Adjusted Canonical Correlation Analysis (ACCA) to study the association between mathematics in Level 1 and Level 2 and performance of engineering disciplines in Level 2. In International Conference on Applied & Industrial Mathematics and Statistics (ICoAIMS), August 2017, Malaysia

2)               Silva, H.P.T.N and Peiris T.S.G. (2017). Statistical Modeling of Weekly Rainfall : A case Study in Colombo City in Sri Lanka, Proceedings of the 3rd Moratuwa Engineering Research Conference (MERCon), 29-31 May, Sri Lanka,241-246, IEEE

3)                Nanayakkara, K. A. D. S. A., & Peiris, T. S. G. (2017). Identifying the Influence of Mathematics on Academic Performance of Engineering Students. In 3rd Moratuwa Engineering Research Conference (MERCon), 29-31 May, Sri Lanka,  247-252. IEEE.

4)               Razmy A M and Peiris, T. S. G (2014).  A Novel Joint Quality Monitoring Approach for Industrtial Application. Proceedings of the 1st Quality Symposium, Sri Lanka Standad Instituites, Colombo, 119-124.

5)               Razmy A M and Peiris, T. S. G. (2013).  Performance Comparison of  Shewhart Joint Monitoring Schemes for Mean and Variance.  Proceeding of the 19th National Engineering Conference, 19th  ERU Symposium, Faculty of Engineering, University of Moratuwa, Sri Lanka. Vol. 19, 99 -104

6)               Mathugama, S. C.  And Peiris, T. S. G. (2012).  Modelling Onset of Critical Dry Spells in DL2 Region in Dry Zone Sri Lanka.  Proceedings of the 2nd Regional Conference on Applied and Engineering Mathematics.  Penang, Malaysia.719-725.

7)               Razmy, A. M.  and Peiris, T. S. G. (2012). A standard Method to compare combined Quality Monitoring Schemes using Average Raw length.  Proceeding of the 2nd International Symposium. South Eastern University of Sri Lanka, 172-173.

8)               Mathugama C. S. and Peiris T. S. G. (2010) Forecasting critical dry spell lengths in Anamaduwa.  Proceedings of the 16th Annual Symposium of the Faculty of Engineering, 240-241.

9)               Waidyaratne, K. P.,  Peiris, T. S. G and Samita S. (2010).  Significance Changes of Seasonal Rainfall in Coconut Growing Area in Sri Lanka. In Proceedings of the 3rd Symposium on Plantation Crop Research. - 214-223, (Eds: R S Dharmakeerthi and A M W K Senevitahna), 30 September-01 October, Cinnamon Garden Hotel, Colombo, Sri Lanka

10)            Mathugama C. S. and Peiris T. S.. G (2009) .Forecasting Dry Spells in DL1 - A Case study from Anamaduwa. Proceedings of the 15th Annual Symposium of the Faculty of Engineering, 123-124.

11)            Peiris, T. S. G. (2008) Impacts Assessment due to Climate Change on the Coconut Industry in Sri Lanka.  Proceedings of the 14th Annual Symposium of the Faculty of Engineering, 24-25

12)            Peiris, T. S. G. (2005).  Role of statisticians towards disaster management in climate. 28-35 pp, Proceedings of the 6th Annual General Meeting of the Applied Statistics Association of Sri Lanka, Prof. V K Samaranayake Auditorium, University of Colombo, Colombo, Sri Lanka.

13)            Peiris T. S. G. (2004).  Forecasting coconut production: issues, approaches, and challenges. In Proceedings of the International Conference of Coconut Research Institute of Sri Lanka – Part I (Review papers and guest presentations), 111 – 147 (Eds: T S G Peiris and C S Ranasinghe).  The Coconut Research Institute of Sri Lanka, Lunuwila 61150, Sri Lanka.

14)            Piyasiri, C. H., Peiris, T. S. G and Samita S. (2004).  Empirical prediction of maximum and minimum air temperature in Sri Lanka. In Proceedings of the International Statistical Conference: Visions of futuristic methodologies. 371-379, (Eds: Basil M de Silva and NitisMukhopadhyay), 28-30 December 2004, Postgraduate Institute of Science, University of Peradeniya, Sri Lanka.

15)            Peiris T. S. G. and Mathes, D. T. (1997).  The Analysis of long term rainfall variability at selected location in Sri Lanka.  Proceedings of the International Congress on Modeling and Simulation, 06-11 December, 1997, Hobart, Australia. 69-74.

16)            Peiris, T. S. G. (1993).  The degree of influence of rainfall on coconut.  Advances in coconut research and development, 413-420, (Eds.  Nair, M. K., Khan, P. H., Gopalasundram, P. &BhaskaraRao, E. V. V.).  Oxford & IBH Publishing Co. Pvt. Ltd.

 

5.5          Presentation  at Conferences/Communications – Published as  an abstract

 

1)               Peiris, T S G (2017).  Role of Statisticians in Promoting Good Governance. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 81p.

2)               Silva H P T N and Peiris, T S G. (2017). Modeling Weekly Rainfall: Problems Encountered. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 91p.

3)               Amarasinghe A A M D and Peiris T S G (2017). Impact of the Macroeconomic Variables on All Share Price Index: GARCH-X Approach. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 113p.

4)               Fernando K D U A,  Peiris T U I  and Peiris, T S G (2017). Determinants of the Banking Sector Development. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 115p.

5)               Nanayakkara S and Peiris, T. S. G. (2015). Influence of Mathematics in Level 1 on Students Performance in Engineering Programs: A Case Study. International Postgraduate Research Conference, University of Kelaniya, Sri Lanka, 10-11 December.

6)               Peiris, T. S. G. (2014). Statisticians’s Role in Climate Change in Sri Lanka. Proceedings of the  International Statistics Conference. (28-30) December, Colombo, Sri Lanka, 100p.

7)               Mathugama C. S. and Peiris T. S. G. (2014). Lengths of Critical Dry Spells in Sri Lanka. Proceedings of the  Predicting International Statistics Conference 2014. (28-30) December, Colombo, Sri Lanka, 101p

8)               Razmy A. M. and Peiris T. S. G. (2012).  A Standard Method to Compare the Combined Quality Monitoring Schemes Using Average Run Length Properties.  International, South Eastern University, 172-173.

9)               Mathugama C. S. and Peiris T. S. G. (2012) .Impact of Dry Spells in Diaster Managment: Forecasting Aspects. Proceedings of the 4th InternationalConference on Geo Information Technology for Natural Diasaster Managment, 7-8 November, Colombo, Sri Lanka, 85p

10)            Alibuhtto, M. C. and Peiris, T. S. G. (2012). Modelling CCPI Using Time Series ARIMA Model. Proceeding of the 1st Annual Research Conference - Emerging Issues in Management and Finance. Faculty of Management& Commerce, South Eastern University, 63p

11)            Peiris, T. S. G. (2011) Measuring Stock Market Volatility in an Emerging Economy. International Conference on Business and Information. Faculty of Commerce and Management Studies, University of Kelaniya.

12)            Mathugama, S. C.  and Peiris, T. S. G.(2010).  Minimizing of vulnerability caused by extended dry spells. Proceeding of the 2nd National Symposium on  Disaster Risk Reduction and Climate Change Adaptation, 13-14 October, Sri Lanka Foundation Institute, Sri Lanka, 14p

13)            Peiris, T. S. G. (2010). A study of future climate in Sri Lanka. Proceedings of the 2nd National Symposium on Disaster Risk Reduction & Climate Change Adaptation, 13-14 October, SLFI, Colombo, 47p

14)            Mathugama, S. C.  and Peiris, T. S. G. (2009).  Analysis of the occurrence of  dry spells in the DL2  region of Sri Lanka, Proceeding of the International Statistics Conference, 8-10 January, Sri Lanka Foudation Institute, Sri Lanka, 10p

15)            D. C. Wickramarachchi, S. Samita and Peiris, T. S. G. (2009). An Algorithm to detect over-dispersion in multinomial data. Proceeding of the International Statistics Conference, 8-10 January, Sri Lanka Foundation Institute, Sri Lanka, 21p

16)           Peiris, T. S. G. (2006).  Impact of climate change on coconut industry in Sri Lanka.  Paper presented at the 3rd International conference on Climate Impact and Assessment (TICCIA), 24-27 July, Cairns, Australia.

17)            Kularatne, J. D. J. S.,Peiris, T. S. G. and Mathes, D. T. (2004).  Long-term climate variability in Hambantota. 71, InProceedings of the International Sri Lankan Statistical Conference. (Eds: Basil M. de Silva and NitisMukhopadhyay), 28-30 December 2004, Post Graduate Institute of Science, University of Peradeniya, Sri Lanka.

18)            Peiris,  T. S. G., Larref Zubair, Piyasiri, C. H. (2004).  Forecasting national coconut production – a novel approach.  InProceedings of the International Sri Lankan Statistical Conference. (Eds: Basil M. de Silva and Nitis Mukhopadhyay), 28-30 December 2004, Post Graduate Institute of Science, University of Peradeniya, Sri Lanka.

19)           Peiris T  T. S. G., Madawala  Wijeratne, Annada Kumaraswamy, A. Ranasinghe, C. S., Jayakody, A. and  Fernando, M. T. N. (2004) Impact of climate change in Sri Lanka on coconut and tea industry.  Paper presented at the 2nd AIACC Asia and the Pacific Regional workshop on assessment of climate change impacts.  2-5 November, Traders hotel, Passay City, Philippines.      

20)           Peiris, T. S. G. and Kularatne, J. D. J. S. (2004).  Analysis of climate change in Hambantota district in Sri Lanka. In Proceedings of the International conference on Sustainable Water Resources Management in Changing Environment of the Monsoon Region (Eds: Srikantha Herath, AsselaPathirana and S. B. Weerakoon), 17-19, November, BMICH, Colombo, Sri Lanka.

21)         Peiris, T. S. G. and Janet Riley (2002). Aggregation of multidisciplinary indicators in space.  Proceeding of the International Biometrics Conference held during 21–26 July, Freiburg, Germany,

22)            Peiris, T. S. G., Pramudita, W. and Abenayake, R (2002). Reduction of experimental error in coconut trials.   Proceeding of the International Biometrics Conference held on 21 – 26 July, Freiburg, Germany.

23)            Peiris, T. S. G. (2002).  Effect of temporal scale aggregation on climate change studies”.  Proceeding of the International Workshop on Regional Integrated Assessment of Climate Impacts held at the IL_CIOCCO Hotel,  16-20 September, CastelvecchioPascoli, Italy.

24)           Peiris, T. S. G. and Fernando, M. T. N. (2000).   Trend in nut production and utilization.   Proceedings of the conference on coconut industry - meeting the new challenges.  27 June, BMICH, Colombo.

25)           Fernando, M. T. N. and Peiris, T. S. G. (2000). Some economic consideration of coconut production and processing.Proceedings of the conference on coconut industry - meeting the new challenges, 27 June, BMICH, Colombo.

26)           Peiris, T. S. G. (2000).  The role of coconut industry in Sri Lanka towards the world trend on kernel products.  The Proceeding of the International Conference on Plantation Crops, Green Park, Hyderabad, India, 21p.

27)           Fernando, M. T. N. and Peiris, T. S. G. (2000).  Import duty reduction for substitute oils and its implications on coconut oil industry in Sri Lanka.  The Proceeding of the International Conference on Plantation Crops, Green Park, Hyderabad, India, 22p.

28)           Somasiri, L . L. W., Peiris, T. S. G., Wijebandara, D .M. D. I., and Bandara, E. M. A. T. (1999).   Status of exchangeable bases of the upland soils of the Kurunegala catena of the coconut triangle.  Proceedings of the 55th Annual Session of the SLAAS, 57 pp.

29)           Peiris, T. S. G. (1999). A stochastic model to predict national coconut yield. Proceedings of the International Symposium on Forecasting, 27-30 June, 1999, Washington D C, USA. 35p.

30)           Peiris, T. S. G. and Thattil, R. O. (1997).  Climate analysis - the effect of climate on coconut. Proceedings of the National Symposium of Climate Change, 7-8 March, Colombo, Sri Lanka.

31)           Peiris, T. S. G. and Mathes, D. T. (1997).  Rainfall changes scenarios in coconut growing areas in Sri Lanka.  Proceedings of the National Symposium of Climate Change, 7-8 March, Colombo, Sri Lanka

32)           Peiris, T. S. G. and Thattil, R. O. (1995).  The analysis of climate system: Parsimonious crop-weather model.  Proceedings of the 6th International Conference on Environmetrics, 6-9 December, Malaysia.

33)           Peiris, T. S. G. (1997).  Evaluation of subsidy programmes in coconut and technology transfer.  A paper presented to the International Workshop on Technology Development and Transfer in Coconut, 1-5 April, Lunuwila, Sri Lanka

34)           Peiris, T. S. G. and Thattil, R. O. (1994).  Use of dimensional reduction methods for selection of variables in agro meteorology aspects on coconut.  Proceedings of the International Conference of the Royal Statistical Society, held at the university of Newcastle Upon Tyne, 12-16 September, 121 p.

35)           Peiris, T. S. G. and Thattil, R. O. (1994).  Application of Agro meteorology to some aspects of coconut research.  Proceedings of the International Symposium on Plantation Crops, held at the Calicut, Kerala, India, 30 November - 03 December, 5p.

36)           Peiris, T. S. G. and Thattil, R. O. (1993).  Estimation of solar radiation at Lunuwila (70 20' N, 710 53'E, 30.5 m).  Proceedings of the 49th Annual Session of the SLAAS, 191 p.

37)           Peiris, T. S. G. and Thattil, R. O. (1992).  Determination of optimum plot size for coconut based on data from randomized complete block experiments.  Proceedings of the Int. Biometrics Conference, held in 7-11 December in Hamilton, New Zealand, 179 pp.

38)           Peiris, T. S. G. and Thattil, R. O. (1992).  Alternative methods to determine the optimum plot size for tree crops.  Proceedings of the 48th Annual Session of the SLAAS, 55 pp.

39)           Peiris, T. S. G. (1991).  Modeling approach in analyzing field experimental data in coconut. Proceedings of the 47th Annual Session of the SLAAS, 139 pp.

40)           Peiris, T. S. G., Kularatne, J. D. J. S. &Mathes, D. T. (1990).  CLIMATE: A user friendly program to analyse climatological variables for agricultural purposes".  Proceedings of the 46th Annual Session of the SLAAS. 139 pp.

41)           Peiris, T. S. G. and Senaviratne, E. K. (1989).  The use of daily rainfall in analysis of the repeated measurements data.  Proceedings of the 45th Annual Session of the SLAAS. 39 pp.

42)           Peiris, T. S. G. (1989).  An alternative approach to analyze the repeated measurements data in perennial crops. Proceedings of the conference on Statistics for Repeated Measurement in Italy from 6?9 September, 1989, University of Paduva, Italy.

43)           Jayasekara, K. S.,  Liyanage, M. de. S. and Peiris, T. S. G. (1988).  Effect of intercropping on soil erosion and runoff in coconut lands.  Proceedings of the 44th Annual Session of the SLAAS, 35 pp

44)           Peiris, T. S. G. (1988). Software in micro computers for the analysis of designed experiments.  Proceedings of the 8th National Computer Conference, Sri Lanka, 77 pp.

45)           Peiris, T. S. G. (1987). SAS ? a micro computer software for agricultural research.   Proceeding of the 43rd Annual Session of the SLAAS, 120 pp.

46)           Peiris, T. S. G. (1986).  Seasonal ARIMA model for forecasting crop?wise coconut yield in a given estate. Proceedings of the 42nd Annual Session of the SLAAS, 174 pp.

47)           Thilakasiri, M. A., Peiris, T. S. G. & Gunasekara, T. G. L. G. (1986). Some socio economic characteristics of coconut based farming systems. Proceedings of the 42nd Annual Session of the Sri Lanka Association of Advancement of Science (SLAAS), 197 pp.

 

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Publications  in Refereed Indexed Journals (International)

1)               Pasan M. Edirisinghe, Thomas Mathew and T S G Peiris (2019).”Confidence limits for compliance testing using mixed acceptance criteria”  Qual Reliab Engng Int. 2020;1–8., . DOI:10.1002/qre.2623

 

2)               Silva, H P T N, Dissanayake, G S and Peiris T S G (2019).  The Use of Fractionally Autoregressive Integrated Moving Average for the Rainfall Forecasting. Springer Nature Switzerland , V Kreinovich et. al. (Eds), ECONVN, SCI 809, 567-580.

 

3)          Silva, H P T N, Dissanayake, G S and Peiris T S G (2019). Modeling Persistent and Periodic Weekly Rainfall in an Environment of an Emerging Sri Lankan Economy.  Springer Nature Switzerland , V Kreinovich et. al. (Eds), ECONVN, SCI 808, 314-328.

 

4)          Silva, H P T N and Peiris T S G (2018). Accurate Confidence Interval for Weibull Percentiles Using Bootstrap Calibration: A case study from weekly rainfall in Sri Lanka. International Journal of Ecological Economics and Statistics.  39(3), 67-76.

 

5)          Sameera Senanayake, Nalika Gunawardena, Paba Palihawadana, Sanjeewa Kularatna and Peiris, T S G (2017).  Validity and reliability of the Sri Lankan version of the Kidney Disease Quality of Life Questionnaire (KDQOL-SF™), Journal of Health and Quality of Life Outcomes, 15,119, 1-9

 

6)          Silva, H P T N and Peiris T S G (2017). Analysis of Weekly Rainfall using Percentile Bootstrap Approach. International Journal of Ecology and Development, 32(3), 97-107.

 

7)          Nanayakkara, K A D S A and Peiris, T S G (2017). Influence of  Mathematics on Academic Performance of Engineering Students: PLS-SEM Approach. Communication in Statistics Case Studies and Data Analysis.

 

8)          Peiris, T S G and Nanayakkara, K. A. D. S. A. (2017). Application of Adjusted Canonical Correlation Analysis (ACCA) to study the association between mathematics in Level 1 and Level 2 and performance of engineering disciplines in Level 2. Journal of Physics: Conference Series 890 012092, 1-12.

 

9)          Attanayake, A M C H, Jayasundara, D D M and Peiris, T S G (2016). An Application of 5-Fold Cross validation on a Binary Logistic Regression Model. Advances & Applications in Statistics. 49(6), 443-461.

 

10)       Nanyakkara K. A. D. S. A. and Peiris, T. S. G. (2016).  Impact of Mathematics in Level 1 on the Academic Performance of Engineering Students: A Case Study. International Journal of Applied Statistics and Statistical Sciences, 5(4), 1 -8.

 

 

11)       Nanayakkara K A D S A and Peiris, T. S. G.  (2016). Application of Canonical  Correlation Analysis to Study the Influence of Mathematics on Engineering Programs. Proceedings of the ERU Symposium, University of Moratuwa, IEEE (978-1-5090-0645.

 

12)       Razmy A. M. & Peiris T. S. G. (2014). Comparison of Rectangular and Elliptical Control Region EWMA Schemes for Joint Quality Monitoring, Open Journal of Statistics, 4 (11), 970 -976.

 

13)       Yadharshny Sivapragasam, and Peiris T. S. G. (2014). Factors Effecting on Internet Banking Adoption: A Case Study.  Asian Journal of Business and Management (AJBM),  Vol.2(4), 232-239.

 

 

14)       Razmy, A. M.  and Peiris, T. S. G. (2013).  Design of Expoenetially Weighted Moving Average Chart for Monitoring Standardized Process Variance.  International Journal of Engineering and Technology. Vol 13 , 74-78.

 

15)            Mathugama S. C. and Peiris T. S. G. (2012). Spatial  and Temporal Analysis of Critical Dry Spells in Sri Lanka. The International J of Climate Change: Impacts and Responses. International Journal  of Climate Change: Impacts and Response. 3(3): 71-88.

 

16)            Mathugama S. C. and Peiris T. S. G. (2011).   Critical Evaluation of Dry Spell Research. International J of Basic and Applied Sciences,  11 (6), 153-160.

 

17)            Peiris, T. S. G., Hansen, J. W. and Lareef, Zubair (2008).  Use of seasonal climate information to predict coconut production in Sri Lanka.   International. J of Climatology, 28: 103-10.

18)             

19)            Siriwardena, P. H. A., Fernando, L. C. P. and Peiris, T. S. G. (2005).  A new method to estimate the population size of coconut mite on a coconut nut.  J. of Experimental and Applied Acarology, Nertherlands.  37, 123-129.

 

20)            Marikkar, J. M. N., H. M. Ghazali, Y.B. Che Man, Peiris, T. S. G. and O.M. Lai. (2005). Distinguishing lard from other animal fats in admixtures of some vegetable oils using liquid chromatographic data coupled with multivariate data analysis. Food Chemistry, 91, 5-14.

 

21)            Marikkar, J. M. N., H. M. Ghazali, Y.B. Che Man, Peiris, T. S. G. and O.M. Lai. (2005). Use of gas liquid chromatography in combination with pancreatic lipolysis and multivariate data analysis techniques for identification of lard contamination in some vegetable oils  Food Chemistry, 90, 23-30

 

22)            Fernando, L.C.P., Aratchige, N. S., Peiris, T. S. G. (2003). Distribution patterns of coconut mite, Aceriaguerreronis and its predator Neoseiulusaff. paspalivorus in coconut palms. J. of Experimental and Applied Acarology. 31, 71-78.

 

23)            Peiris, T. S. G. and Thattil, R. O. (1998).  The study of climate effects on the nut yield of coconut using parsimonious models.  J. of Experimental Agriculture, 34, 189-206.

 

24)            Peiris, T. S. G., Thattil, R. O., and Mahindapala, R. (1995).  An analysis of the effect of climate and weather on coconut (Cocosnucifera).  J. of Experimental Agriculture, 31 (4), 451-460.

 

25)            Peiris, T. S. G. (1993).  Statistical analysis of field experiments in coconut using fewer recordings, J. of Experimental Agriculture. (29), 207-213.

 

 

Publications  in Refereed non-indexed Journals (National and International

 

1)             Jayathilake Amali and Peiris, T S G (2017). Modelling Aging Population in Sri Lanka. Cities People Places : An International Journal on Urban Environments. 2(2). 40-46

 

2)            Dewappriya M A N, Dias, W P S and Peiris, T S G (2017). Modelling of Tsunami Intensity Using Artifical Neural Network and Fuzzy Inference System.  International Journal of Scientific and Engineering Research, 8(6), 1-7.

 

3)            Razmy, AM  and Peiris, T. S. G. (2013).  Design of Expoenetially Weighted Moving Average Scheme for Standardized Means.  Sri Lanka Journal of Applied Statistics. Vol (14-2), 145-152.

 

4)          Peiris, T. S. G. and Kularatne, J. D. J. S. (2008). Assessment of Climate Variability for Coconut and Other Crops: A Statistical Approach. International Journal of Coconut Research & Development (CORD). 24(1) 35-53

 

5)          Kularatne, J. D. J. S., Peiris, T. S. G. and Samita, S. (2008). Impact of   Covariate on Single Palm Plot Experiments in Coconut. International Journal of Coconut Research & Development (CORDCORD, 24(2), 10-20.

 

6)          Cooray, T. M. J. A. and Peiris, T. S. G. (2008). Day and Night, Electricity Load Forecasting for Peaks Values in Sri Lanka.  Sri Lanka Journal of Applied Statistics, 9, 121-131.

 

7)          Wickramananda, I. R., Peiris, T. S. G., Neil Fernando, Fernando, L C P and Edgington, S. (2007). Impact of the coconut mite (AcerriaguerreronisKeifer) on the coconut industry in Sri Lanka.  International J of Coconut R & D (Cord), Indonesia, 23(1), 1-16.

 

8)          Peiris T. S. G., K. P. Waidayaratne,.Samita S. and R. O. Thattil (2007).  Control of spatial effect due to neighboring palms in coconut (CocosNucifera).  International Journal on Coconut R & D (CORD), 23(2), 46-57.

 

9)          Pathirage Anuradha Niranji, D P. and Peiris, T. S. G. (2007).  Integrated Time Series Model to Forecast Monthly Nut Price of Coconut.  Sri Lankan Journal of Applied Statistics, 8, 83-94

 

10)       Kularatne, J D J S,  Peiris, T. S. G. and Samita S. (2006).  Feasibility of single palm plot in coconut experimentation.  Journal of Tropical Agricultural Research, 18, 55-62.

 

11)       Waidyarathne K. P, Peiris T. S. G and Samita, S. (2006). Shift in onset of first inter monsoon rain in coconut growing areas in Sri Lanka.  Journal of Tropical Agricultural Research, 18, 1-12.

 

12)       Peiris, T. S. G. (2005).  Spatial aggregation of multidisciplinary data.  Sri Lankan J of Applied Statistics, 5, 29-50.

 

13)       Peiris, T.  S. G., Fernando, M . T. N. and Samarajeewa, S. (2004).  Factors influencing the use of coconut oil by the householders in Sri Lanka and their policy relevance to popularize the consumption, International Journal of Coconut Research &Development(Cord), Indonesia.  20 (2), 12-20.

 

14)       Piyasiri, C. H., Peiris, T. S. G. and Samita S. (2004).  Change in rainfall and temperature of Low Country Wet Intermediate (IL1) Region of Sri Lanka. Journal of Tropical Agricultural Research, 16, 271-280.

 

15)       Peiris, T. S. G., Peiris, T. U. S., and Rajapaksha, S. (2000).  Prediction of annual national coconut production - a stochastic approach.  Sri Lanka J of Applied Statistics, 1 (1), 25-32.

 

16)       Peiris, T. U. S., Peiris, T. S. G., and Samita. S (2000). Arrival of south-west monsoon rains.  Journal ofTropical Agricultural Research, 12, 265-275.

 

17)       Peiris, T.  S.  G., Fernando, M. T. N. and Waidyanatha, U. P. de S (2001). Factors influencing the productivity of coconut estates.  J. of Coconut Research and Development (Cord), Indonesia, 17(2), 36 – 48.

 

18)       Peiris, T.  S.  G. and Thattil, R. O. (1997a).  Assessment of the effects of environmental factors on yield of coconut. Cocos (Journal of the Coconut Research Institute, Sri Lanka) 12, 1-18.

 

19)       Peiris, T. S. G. and Thattil, R. O. (1997b).  Alternative methods to determine optimal plot size for perennial tree crops. Cocos, 12, 44-54.

 

20)       Peiris, T. S. G. and Thattil, R. O. (1996).  Application of agro climatology to some aspects of Coconut research.  J. Plant. Crops (Supplement) in India, 24, 24-35.

 

21)       Peiris, T. S. G. and Thattil, R. O. (1994).  An alternative model to estimate solar radiation.  Cocos , 10, 26-34.

 

22)       Peiris, T. S. G. and Pieris, R. A. A. (1991).  The effect of bimonthly rainfall on coconut yield in the Semi Dry Intermediate Zone (ILl) in Sri Lanka.  Cocos, 9, 1-11.

 

23)       Peiris, T. S. G.  (1989). Forecasting the crop yield of a coconut estate.  International J. of Coconut Research & Development (Cord), Indonesia 5(2), 67?77.

 

24)       Peiris, T. S. G. and Senaviratne, E. K. (1989).  An alternative approach for analysis of data from a long term experiment.  Cocos, 7, 14-20.

 

25)       Peiris, T. S. G. and Stern, R. D. (1988).  Use of statistics package `SAS' in an agricultural research institute: a case study from CRI, Sri Lanka.  Cocos.6, 38?52.

 

 

Presentations  in Refereed Proceedings – Published as full paper/extended abstract

 

1)                Peiris, T. S. G., & Nanayakkara, K. A. D. S. A. (2017). Application of Adjusted Canonical Correlation Analysis (ACCA) to study the association between mathematics in Level 1 and Level 2 and performance of engineering disciplines in Level 2. In International Conference on Applied & Industrial Mathematics and Statistics (ICoAIMS), August 2017, Malaysia

2)               Silva, H.P.T.N and Peiris T.S.G. (2017). Statistical Modeling of Weekly Rainfall : A case Study in Colombo City in Sri Lanka, Proceedings of the 3rd Moratuwa Engineering Research Conference (MERCon), 29-31 May, Sri Lanka,241-246, IEEE

3)                Nanayakkara, K. A. D. S. A., & Peiris, T. S. G. (2017). Identifying the Influence of Mathematics on Academic Performance of Engineering Students. In 3rd Moratuwa Engineering Research Conference (MERCon), 29-31 May, Sri Lanka,  247-252. IEEE.

4)               Razmy A M and Peiris, T. S. G (2014).  A Novel Joint Quality Monitoring Approach for Industrtial Application. Proceedings of the 1st Quality Symposium, Sri Lanka Standad Instituites, Colombo, 119-124.

5)               Razmy A M and Peiris, T. S. G. (2013).  Performance Comparison of  Shewhart Joint Monitoring Schemes for Mean and Variance.  Proceeding of the 19th National Engineering Conference, 19th  ERU Symposium, Faculty of Engineering, University of Moratuwa, Sri Lanka. Vol. 19, 99 -104

6)               Mathugama, S. C.  And Peiris, T. S. G. (2012).  Modelling Onset of Critical Dry Spells in DL2 Region in Dry Zone Sri Lanka.  Proceedings of the 2nd Regional Conference on Applied and Engineering Mathematics.  Penang, Malaysia.719-725.

7)               Razmy, A. M.  and Peiris, T. S. G. (2012). A standard Method to compare combined Quality Monitoring Schemes using Average Raw length.  Proceeding of the 2nd International Symposium. South Eastern University of Sri Lanka, 172-173.

8)               Mathugama C. S. and Peiris T. S. G. (2010) Forecasting critical dry spell lengths in Anamaduwa.  Proceedings of the 16th Annual Symposium of the Faculty of Engineering, 240-241.

9)               Waidyaratne, K. P.,  Peiris, T. S. G and Samita S. (2010).  Significance Changes of Seasonal Rainfall in Coconut Growing Area in Sri Lanka. In Proceedings of the 3rd Symposium on Plantation Crop Research. - 214-223, (Eds: R S Dharmakeerthi and A M W K Senevitahna), 30 September-01 October, Cinnamon Garden Hotel, Colombo, Sri Lanka

10)            Mathugama C. S. and Peiris T. S.. G (2009) .Forecasting Dry Spells in DL1 - A Case study from Anamaduwa. Proceedings of the 15th Annual Symposium of the Faculty of Engineering, 123-124.

11)            Peiris, T. S. G. (2008) Impacts Assessment due to Climate Change on the Coconut Industry in Sri Lanka.  Proceedings of the 14th Annual Symposium of the Faculty of Engineering, 24-25

12)            Peiris, T. S. G. (2005).  Role of statisticians towards disaster management in climate. 28-35 pp, Proceedings of the 6th Annual General Meeting of the Applied Statistics Association of Sri Lanka, Prof. V K Samaranayake Auditorium, University of Colombo, Colombo, Sri Lanka.

13)            Peiris T. S. G. (2004).  Forecasting coconut production: issues, approaches, and challenges. In Proceedings of the International Conference of Coconut Research Institute of Sri Lanka – Part I (Review papers and guest presentations), 111 – 147 (Eds: T S G Peiris and C S Ranasinghe).  The Coconut Research Institute of Sri Lanka, Lunuwila 61150, Sri Lanka.

14)            Piyasiri, C. H., Peiris, T. S. G and Samita S. (2004).  Empirical prediction of maximum and minimum air temperature in Sri Lanka. In Proceedings of the International Statistical Conference: Visions of futuristic methodologies. 371-379, (Eds: Basil M de Silva and NitisMukhopadhyay), 28-30 December 2004, Postgraduate Institute of Science, University of Peradeniya, Sri Lanka.

15)            Peiris T. S. G. and Mathes, D. T. (1997).  The Analysis of long term rainfall variability at selected location in Sri Lanka.  Proceedings of the International Congress on Modeling and Simulation, 06-11 December, 1997, Hobart, Australia. 69-74.

16)            Peiris, T. S. G. (1993).  The degree of influence of rainfall on coconut.  Advances in coconut research and development, 413-420, (Eds.  Nair, M. K., Khan, P. H., Gopalasundram, P. &BhaskaraRao, E. V. V.).  Oxford & IBH Publishing Co. Pvt. Ltd.

 

Presentation  at Conferences/Communications – Published as  an abstract

 

1)               Peiris, T S G (2017).  Role of Statisticians in Promoting Good Governance. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 81p.

2)               Silva H P T N and Peiris, T S G. (2017). Modeling Weekly Rainfall: Problems Encountered. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 91p.

3)               Amarasinghe A A M D and Peiris T S G (2017). Impact of the Macroeconomic Variables on All Share Price Index: GARCH-X Approach. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 113p.

4)               Fernando K D U A,  Peiris T U I  and Peiris, T S G (2017). Determinants of the Banking Sector Development. Proceedings of the 3rd International Statistics Conference, IASSL, (28-29) December, 2017, 115p.

5)               Nanayakkara S and Peiris, T. S. G. (2015). Influence of Mathematics in Level 1 on Students Performance in Engineering Programs: A Case Study. International Postgraduate Research Conference, University of Kelaniya, Sri Lanka, 10-11 December.

6)               Peiris, T. S. G. (2014). Statisticians’s Role in Climate Change in Sri Lanka. Proceedings of the  International Statistics Conference. (28-30) December, Colombo, Sri Lanka, 100p.

7)               Mathugama C. S. and Peiris T. S. G. (2014). Lengths of Critical Dry Spells in Sri Lanka. Proceedings of the  Predicting International Statistics Conference 2014. (28-30) December, Colombo, Sri Lanka, 101p

8)               Razmy A. M. and Peiris T. S. G. (2012).  A Standard Method to Compare the Combined Quality Monitoring Schemes Using Average Run Length Properties.  International, South Eastern University, 172-173.

9)               Mathugama C. S. and Peiris T. S. G. (2012) .Impact of Dry Spells in Diaster Managment: Forecasting Aspects. Proceedings of the 4th InternationalConference on Geo Information Technology for Natural Diasaster Managment, 7-8 November, Colombo, Sri Lanka, 85p

10)            Alibuhtto, M. C. and Peiris, T. S. G. (2012). Modelling CCPI Using Time Series ARIMA Model. Proceeding of the 1st Annual Research Conference - Emerging Issues in Management and Finance. Faculty of Management& Commerce, South Eastern University, 63p

11)            Peiris, T. S. G. (2011) Measuring Stock Market Volatility in an Emerging Economy. International Conference on Business and Information. Faculty of Commerce and Management Studies, University of Kelaniya.

12)            Mathugama, S. C.  and Peiris, T. S. G.(2010).  Minimizing of vulnerability caused by extended dry spells. Proceeding of the 2nd National Symposium on  Disaster Risk Reduction and Climate Change Adaptation, 13-14 October, Sri Lanka Foundation Institute, Sri Lanka, 14p

13)            Peiris, T. S. G. (2010). A study of future climate in Sri Lanka. Proceedings of the 2nd National Symposium on Disaster Risk Reduction & Climate Change Adaptation, 13-14 October, SLFI, Colombo, 47p

14)            Mathugama, S. C.  and Peiris, T. S. G. (2009).  Analysis of the occurrence of  dry spells in the DL2  region of Sri Lanka, Proceeding of the International Statistics Conference, 8-10 January, Sri Lanka Foudation Institute, Sri Lanka, 10p

15)            D. C. Wickramarachchi, S. Samita and Peiris, T. S. G. (2009). An Algorithm to detect over-dispersion in multinomial data. Proceeding of the International Statistics Conference, 8-10 January, Sri Lanka Foundation Institute, Sri Lanka, 21p

16)           Peiris, T. S. G. (2006).  Impact of climate change on c">

Publications  in Refereed Indexed Journals (International)

 

1)               Pasan M. Edirisinghe, Thomas Mathew and T S G Peiris (2019).”Confidence limits for compliance testing using mixed acceptance criteria”  Qual Reliab Engng Int. 2020;1–8., . DOI:10.1002/qre.2623

 

2)               Silva, H P T N, Dissanayake, G S and Peiris T S G (2019).  The Use ">

 The Use of Fractionally Autoregressive Integrated Moving Average for the Rainfall Forecasting. Springer Nature Switzerland , V Kreinovich et. al. (Eds), ECONVN, SCI 809, 567-580.

 

 

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