4.6 Article

A Novel Framework to Forecast COVID-19 Incidence Based on Google Trends Search Data

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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSS.2023.3255256

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Coronavirus disease 2019 (COVID-19); forecasting; Google Trends; Wiener model

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The global outbreak of COVID-19 has led to severe health and socioeconomic consequences. Previous studies suggest that Google Trends search volumes can be used to predict the dynamics of epidemics. In this study, a Wiener model was used to predict the weekly COVID-19 incidence in Washington, DC, USA, using epidemic-related search queries from Google Trends and climate variables. The results showed that the predicted COVID-19 trends correlated significantly with the actual data and outperformed other prediction models.
The global outbreak of coronavirus disease 2019 (COVID-19) has spread to more than 200 countries worldwide, leading to severe health and socioeconomic consequences. As such, the topic of monitoring and predicting epidemics has been attracting a lot of interest. Previous work reported search volumes from Google Trends are beneficial in decoding influenza dynamics, implying its potential for COVID-19 prediction. Therefore, a predictive model using the Wiener methods was built based on epidemic-related search queries from Google Trends, along with climate variables, aiming to forecast the dynamics of the weekly COVID-19 incidence in Washington, DC, USA. The Wiener model, which shares the merits of interpretability, low computation costs, and adaptation to nonlinear fluctuations, was used in this study. Models with multiple sets of features were constructed and further optimized by the highest weight selecting strategy. Furthermore, comparisons to the other two commonly used prediction models based on the autoregressive integrated moving average (ARIMA) and long short-term memory (LSTM) were also performed. Our results showed the predicted COVID-19 trends significantly correlated with the actual (rho = 0.88, p < 0.0001), outperforming those with ARIMA and LSTM approaches, indicating Google Trends data as a useful tool in terms of COVID-19 prediction. Also, the model using 20 search queries with the highest weighting outperformed all other models, supporting the highest weight feature selection as a feasible criterion. Google Trends search query data can be used to forecast the outbreak of COVID-19, which might assist health policymakers to allocate health care resources and taking preventive strategies.

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