User Adaptation Frame Work for Wearable Sensing Device

Intra-/Inter-user Adaptation Framework for Wearable Gesture Sensing Device


The photo reflective sensor (PRS), a tiny distant-measurement module, is a popular electronic component widely used in wearable user-interfaces. An unavoidable issue of such wearable PRS devices in practical use is the need of userindependent training to have high gesture recognition accuracy. Each new user has to re-train a device by providing new training data (we call the inter-user setup). Even worse, re-training is also necessary ideally every time when the same user re-wears the device (we call the intra-user setup). In this paper, we propose a domain adaptation framework to reduce this training cost of users. Specifically, we adapt a pre-trained convolutional neural network (CNN) for both inter-user and intra-user setups to maintain the recognition accuracy high. We demonstrate, with an actual PRS device, that our framework significantly improves the average classification accuracy of the intra-uer and inter-user setups up to 87.43% and 80.06% against the baseline (non-adapted) setups with the accuracy 68.96% and 63.26% respectively.



Kosuke Kikui,
Yuta Itoh (Tokyo Institute of Technology / Riken AIP),
Makoto Yamada (Kyoto University / Riken AIP),
Yuta Sugiura,
Maki Sugimoto


Kosuke Kikui, Yuta Itoh, Makoto Yamada, Yuta Sugiura, and Maki Sugimoto. 2018. Intra-/inter-user adaptation framework for wearable gesture sensing device. In Proceedings of the 2018 ACM International Symposium on Wearable Computers (ISWC ’18). ACM, New York, NY, USA, 21-24. DOI: