Beyond Physical Labels: Redefining Domains for Robust WiFi-based Gesture Recognition

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Hauptverfasser: Zhang, Xiang, Yan, Huan, Huang, Jinyang, Liu, Bin, Feng, Yuanhao, Liu, Jianchun, Li, Meng, Zhang, Fusang, Liu, Zhi
Format: Preprint
Veröffentlicht: 2026
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author Zhang, Xiang
Yan, Huan
Huang, Jinyang
Liu, Bin
Feng, Yuanhao
Liu, Jianchun
Li, Meng
Zhang, Fusang
Liu, Zhi
author_facet Zhang, Xiang
Yan, Huan
Huang, Jinyang
Liu, Bin
Feng, Yuanhao
Liu, Jianchun
Li, Meng
Zhang, Fusang
Liu, Zhi
contents In this paper, we propose GesFi, a novel WiFi-based gesture recognition system that introduces WiFi latent domain mining to redefine domains directly from the data itself. GesFi first processes raw sensing data collected from WiFi receivers using CSI-ratio denoising, Short-Time Fast Fourier Transform, and visualization techniques to generate standardized input representations. It then employs class-wise adversarial learning to suppress gesture semantic and leverages unsupervised clustering to automatically uncover latent domain factors responsible for distributional shifts. These latent domains are then aligned through adversarial learning to support robust cross-domain generalization. Finally, the system is applied to the target environment for robust gesture inference. We deployed GesFi under both single-pair and multi-pair settings using commodity WiFi transceivers, and evaluated it across multiple public datasets and real-world environments. Compared to state-of-the-art baselines, GesFi achieves up to 78% and 50% performance improvements over existing adversarial methods, and consistently outperforms prior generalization approaches across most cross-domain tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2601_03825
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Beyond Physical Labels: Redefining Domains for Robust WiFi-based Gesture Recognition
Zhang, Xiang
Yan, Huan
Huang, Jinyang
Liu, Bin
Feng, Yuanhao
Liu, Jianchun
Li, Meng
Zhang, Fusang
Liu, Zhi
Human-Computer Interaction
Machine Learning
In this paper, we propose GesFi, a novel WiFi-based gesture recognition system that introduces WiFi latent domain mining to redefine domains directly from the data itself. GesFi first processes raw sensing data collected from WiFi receivers using CSI-ratio denoising, Short-Time Fast Fourier Transform, and visualization techniques to generate standardized input representations. It then employs class-wise adversarial learning to suppress gesture semantic and leverages unsupervised clustering to automatically uncover latent domain factors responsible for distributional shifts. These latent domains are then aligned through adversarial learning to support robust cross-domain generalization. Finally, the system is applied to the target environment for robust gesture inference. We deployed GesFi under both single-pair and multi-pair settings using commodity WiFi transceivers, and evaluated it across multiple public datasets and real-world environments. Compared to state-of-the-art baselines, GesFi achieves up to 78% and 50% performance improvements over existing adversarial methods, and consistently outperforms prior generalization approaches across most cross-domain tasks.
title Beyond Physical Labels: Redefining Domains for Robust WiFi-based Gesture Recognition
topic Human-Computer Interaction
Machine Learning
url https://arxiv.org/abs/2601.03825