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American Journal of Theoretical and Applied Statistics

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Volume 10, Issue 5, September 2021

  • COVID-19 Prediction and Detection Using Machine Learning Algorithms: Catboost and Linear Regression

    Justine Shinjae Kim

    Issue: Volume 10, Issue 5, September 2021
    Pages: 208-215
    Received: 13 September 2021
    Accepted: 4 October 2021
    Published: 12 October 2021
    DOI: 10.11648/j.ajtas.20211005.11
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    Abstract: A global pandemic COVID-19 has been rapidly spreading, and the predictions for infected rate shows how the cases will increase or decrease. Even though the number of people who get the corona vaccine is increasing, COVID-19 has been a serious worldwide problem. As machine learning and deep learning were implemented to predict COVID-19 in recent day... Show More
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  • Application of ARIMAX Model on Forecasting Nigeria’s GDP

    Christogonus Ifeanyichukwu Ugoh, Chinwendu Alice Uzuke, Dominic Obioma Ugoh

    Issue: Volume 10, Issue 5, September 2021
    Pages: 216-225
    Received: 12 July 2021
    Accepted: 21 July 2021
    Published: 29 October 2021
    DOI: 10.11648/j.ajtas.20211005.12
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    Abstract: This paper proposes an appropriate ARIMAX model that is used to forecast the Nigeria’s GDP. The data used for the study is sourced from the World Bank for a period of 1990-2019. The ARIMA model is fitted on the residuals using Box-Jenkins approach. The Bayesian Information Criterion (BIC) is adopted to assess the adequacy of the models. The raw dat... Show More
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