Forecasting Mortality in the Middle-Aged and Older Population of England: A 1D-CNN Approach

• URL: http://arxiv.org/abs/2411.00317v1
• Date: Fri, 01 Nov 2024 02:20:19 GMT
• Title: Forecasting Mortality in the Middle-Aged and Older Population of England: A 1D-CNN Approach
• Authors: Marjan Qazvini,
• Abstract summary: This study considers the English Longitudinal Study of Ageing (ELSA) survey, conducted every two years. We use one-dimensional convolutional neural networks (1D-CNNs) to forecast mortality using socio-demographics, diseases, mobility impairment, Activities of Daily Living (ADLs) and Instrumental Activities of Daily Living (IADLs) As our dataset is highly imbalanced, we try different over and undersampling methods and find that over-representing the small class improves the results.
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• Abstract: Convolutional Neural Networks (CNNs) are proven to be effective when data are homogeneous such as images, or when there is a relationship between consecutive data such as time series data. Although CNNs are not famous for tabular data, we show that we can use them in longitudinal data, where individuals' information is recorded over a period and therefore there is a relationship between them. This study considers the English Longitudinal Study of Ageing (ELSA) survey, conducted every two years. We use one-dimensional convolutional neural networks (1D-CNNs) to forecast mortality using socio-demographics, diseases, mobility impairment, Activities of Daily Living (ADLs), Instrumental Activities of Daily Living (IADLs), and lifestyle factors. As our dataset is highly imbalanced, we try different over and undersampling methods and find that over-representing the small class improves the results. We also try our model with different activation functions. Our results show that swish nonlinearity outperforms other functions.

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