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    A Comparison of Classical Time Series Models and Machine Learning LSTM Model to Forecast Paddy Production in Sri Lanka

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    Date
    2022
    Author
    Sandaruwani, IBI
    Abeygunawardana, RAB
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    Abstract
    The Autoregressive Integrated Moving Average (ARIMA) family models and the Exponential Smoothing family models are the most widely used and successful conventional techniques for univariate time series forecasting. As a result of the recent development in more sophisticated machine learning methodologies, such as the Long-Short-Term Memory modelling approach, new algorithms are being developed to evaluate and forecast time series data. The objective of this study was to identify the best time series forecasting model among classical time series models and machine learning LSTM model to forecast the annual paddy production of Sri Lanka. The results showed that the estimated error of ARIMA & Double Exponential Smoothing (DES) models is much higher than the estimated error of the preferred LSTM model based on the RMSE, MAE, and MAPE values. Hence LSTM outperforms traditional-based algorithms like ARIMA and smoothing models for forecasting the paddy production in Sri Lanka. The forecasts for paddy production from 2022 to 2024 were 4.92, 4.89, and 5.34 million Mt respectively. Researchers can use this model to forecast the paddy output of Sri Lanka, and it should be continuously improved by including new data.
    URI
    http://ir.kdu.ac.lk/handle/345/6159
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    • Basic & Applied Sciences [52]

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