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Browsing by Author "Liyanage, U.P."

Browsing by Author "Liyanage, U.P."

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  • COMPARISON OF PERFORMANCES OFSELECTED FORECASTING MODELS:AN APPLICATION TO DENGUE DATA IN COLOMBO, SRI LANKA 
    Attanayake, A.M.C.H.; Perera, S.S.N.; Liyanage, U.P. (Department of Statistics & Computer Science, Faculty of Science,& Research & Development Centre for Mathematical Modelling, Faculty of Science, University of Colombo, Sri Lanka., 2021)
    Dengue is a one of the diseases in the world which has no exact treatment to recover from the disease. It is rapidly spreading throughout the world by causing large number of deaths [1]. In Sri Lanka, there is an increase ...
  • A Fuzzy Linear Model Using Possibilistic Linear Regression with Least Squares Method: An Application to Dengue and Rainfall Data 
    Attanayake, A.M.C.H.; Perera, S.S.N.; Liyanage, U.P. (International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)
    Fuzzy linear models deal with vague and imprecise phenomenon in order to represent better models. These type of models are especially suitable in modelling and predicting dengue disease as the disease associated with various ...
  • Modeling and Forecasting the Usage of Cellular and Landline Phones in Sri Lanka 
    Karunarathne, A.W.S.P.; Perera, M.S.H.; Liyanage, U.P. (International Conference on Applied Social Statistics (ICASS) - 2019, Department of Social Statistics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2019)
    Cellular and landline phones are at the forefront of telecommunication. There are two major categories of phones namely cellular phones and landline phones. Landline phones can be classified into another two sub categories ...
  • Modelling and Forecasting the Usage of Cellular and Landline Phones in Sri Lanka: Univariate Time Series Approach 
    Karunarathner, A.W.S.P.; Perera, M.S.H.; Liyanage, U.P. (International Journal of Academic Research, 2020)
    Phones have become a mandatory commodity in human life. Nowadays, there is a very strong increase in the cellular phone market, so we tend to forget landline phone services. According to statistics, cellular phones and ...
  • Portfolio optimization using machine learning techniques: An application on Colombo stock exchange 
    Nakandala, I. A.; Liyanage, U.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)
    Stock market price prediction is a challenging task due to the non-linearity and volatility of the financial data. Thereby, forming a portfolio considering accurately predicted future stock prices becomes an even harder ...
  • Portfolio optimization using machine learning techniques: An application on Colombo stock exchange 
    Nakandala, I. A.; Liyanage, U.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2021)
    Stock market price prediction is a challenging task due to the non-linearity and volatility of the financial data. Thereby, forming a portfolio considering accurately predicted future stock prices becomes an even harder ...
  • Survey on the health status of the undergraduates of Faculty of Science, University of Kelaniya 
    Umagiliya, K.S.; Mendis, G.L.L.S.,; Caldera, P.A.D.S.P.,; Deshapriya, H.K.I.L.,; Dewanthi, K.A.T.; Malshika, N.N.D.; Serasinghe, B.K.; Tharika, W.G.D.S.; Weerakoon, H.L.A.,; Samarakoon, T.; Kumara, M.S.M.S.; Liyanage, U.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)
    The health status of an undergraduate has a huge impact on their individual aspects such as mental and physical wellbeing, academic performances on the university standards as well as on many key fields of a country. ...
  • Visualization of Positive Semi Definite Matrices 
    Ranasinghe, L.P.; Liyanage, U.P.; Perera, S.S.N. (19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka, 2018)
    This paper studies on how to identify positive semi definite property of a matrix using a plot. The main difference of positive semi definite matrix and negative semi definite matrix is defined by eigen values. All the ...

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