Early Fall Prediction Using Hybrid Recurrent Neural Network and Long Short-Term Memory
Kwok Tai Chui Ryan Wen Liu Mingbo Zhao Miguel Torres Ruiz
Kwok Tai Chui
Ryan Wen Liu
Mingbo Zhao
Miguel Torres Ruiz
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2022-10-21
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Abstract
Falls are unintentionally events that may occur in all age groups, particularly for elderly. Negative impacts include severe injuries and deaths. Although numerous machine learning models were proposed for fall detection, the formulations of the models are limited to prevent the occurrence of falls. Recently, the emerging research area namely early fall prediction receives an increasing attention. The major challenges of fall prediction are the long period of unseen future data and the nature of uncertainty in the time of occurrence of fall events. To extend the predictability (from 0.5 to 5 s) of the early fall prediction model, we propose a particle swarm optimization-based recurrent neural network and long short-term memory (RNN-LSTM). Results and analysis show that the algorithm yields accuracies of 89.8–98.2%, 88.4–97.1%, and 89.3–97.6% in three benchmark datasets UP Fall dataset, MOBIFALL dataset, and UR Fall dataset, respectively.