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• W3043459142 abstract "The number of single-person households (SPHs) has been consistently increasing owing to various social issues, such as separation by death, declining marriage rate, and increasing divorce rate. Unfortunately, this demographical change is creating a new social problem, namely, lonely death. In response to this problem, many researchers have attempted to develop wearable sensor-based and computer vision-based systems that monitor occupant behaviors and detect possible emergency events in indoor environments. However, existing approaches face challenges in monitoring SPHs owing to their technical disadvantages; for instance, if the occupant is not wearing the electronic sensor, or if the signal is occluded by other objects, it is not possible to monitor SPHs. Moreover, as existing studies focus only on classifying the occupant's daily activities, such as eating, sitting, and talking, the emergency events that are significant for SPH monitoring are still unclear. To address these challenges, this study investigates emergency events that have a critical impact on the occupant's health and proposes a deep learning-based sound recognition model to monitor occupant behaviors and detect possible emergency events in SPH environments. Experiments are conducted using audio data collected from actual SPH home environments and online data-sharing websites. The average precision and recall rates of the developed model are 78.0% and 90.8%, respectively. The results demonstrate that the developed model could successfully distinguish emergency sound events from the sounds of regular human activities. The findings can not only secure and rescue SPHs in danger but also provide new research directions for indoor occupant and event monitoring. • Major emergency events were monitored in single person household environments. • Proposed a deep learning-based sound recognition model to monitor occupant behavior. • Average precision and recall rates were 78.0% and 90.8%, respectively. • Baselines for occupant behavior and abnormal event monitoring." @default.
• W3043459142 created "2020-07-23" @default.
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• W3043459142 date "2020-08-01" @default.
• W3043459142 modified "2023-10-17" @default.
• W3043459142 title "Occupant behavior monitoring and emergency event detection in single-person households using deep learning-based sound recognition" @default.
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• W3043459142 doi "https://doi.org/10.1016/j.buildenv.2020.107092" @default.
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