Edge Intelligence: A Deep Distilled Model for Wearables to Enable Proactive Eldercare

Muhammad Fahim;S. M. Ahsan Kazmi;Vishal Sharma;Hyundong Shin;Trung Q. Duong
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Abstract

Wearable devices are becoming affordable in our society to provide services from simple fitness tracking to the detection of heartbeat disorders. In the case of elderly populations, these devices have great potential to enable proactive eldercare, which can increase the number of years of independent living. The wearables can capture healthcare data continuously. For meaningful insight, deep learning models are preferable to process this data for robust outcomes. One of the major challenges includes deploying these models on edge devices, such as smartphones and wearables. The bottleneck is a large number of parameters and compute-intensive operations. In this research, we propose a novel knowledge distillation (KD) scheme by introducing a self-revision concept. This scheme effectively reduces model size and transfers knowledge from a deep model to a distilled model by filling learning gaps during the training. To evaluate our distilled model, a publicly available dataset, “growing old together validation (GOTOV)” is utilized, which is based on medical-grade standard wearables to monitor behavioral changes in the elderly. Our proposed model reduces the 0.7 million parameters to 1500, which enables edge intelligence. It achieves a 6% improvement in precision, a 9% increase in recall, and a 9% higher F1-score compared to the shallow model for recognizing elderly behavior.
边缘智能:可穿戴设备的深度提炼模型,以实现主动老年护理
可穿戴设备在我们的社会中变得越来越便宜,可以提供从简单的健身跟踪到检测心跳障碍的服务。就老年人而言,这些设备具有很大的潜力,可以实现主动的老年人护理,从而增加独立生活的年数。可穿戴设备可以连续捕获医疗数据。对于有意义的洞察,深度学习模型更适合处理这些数据以获得稳健的结果。其中一个主要挑战是在智能手机和可穿戴设备等边缘设备上部署这些模型。瓶颈是大量的参数和计算密集型操作。在本研究中,我们通过引入自我修正的概念,提出了一种新的知识蒸馏(KD)方案。该方案通过填补训练过程中的学习空白,有效地减小了模型尺寸,并将知识从深度模型转移到提炼模型。为了评估我们的模型,我们使用了一个公开的数据集“一起变老验证(GOTOV)”,该数据集基于医疗级标准可穿戴设备来监测老年人的行为变化。我们提出的模型将70万个参数减少到1500个,从而实现边缘智能。与识别老年人行为的浅层模型相比,它的准确率提高了6%,召回率提高了9%,f1得分提高了9%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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