Dynamic instance-aware layer-bit-select network on human activity recognition using wearable sensors

Nanfu Ye, Lei Zhang, Dongzhou Cheng, Can Bu, Songming Sun, Hao Wu, Aiguo Song

Abstract: Highlights•A dynamic quantization scheme is developed for activity recognition.•A lightweight bit-width selector is jointly trained with a given network.•An easy activity is assigned with lower bit-widths for accelerating inference.•A complex activity is assigned with higher bit-widths for preserving accuracy.•It can strike a better trade-off between accuracy and cost.