Motivation Modeling Design Experiments Conclusions Limitations of Prior Arts Limitations of Prior Arts:no model(signal,activity) So,have to rely on statistical characteristics of WiFi signals So,sensitive to environmental changes signals Our Approach:model(signal,speed)+model(signal.activity) Robust to environmental changes High recognition accuracy 日，+司1三13卡三分Q0 424Motivation Modeling Design Experiments Conclusions Limitations of Prior Arts Limitations of Prior Arts: no model (signal, activity) • So, have to rely on statistical characteristics of WiFi signals • So, sensitive to environmental changes signals Our Approach: model(signal, speed)+model(signal, activity) • Robust to environmental changes • High recognition accuracy 11 11.5 12 12.5 60 65 70 75 CSI Time (seconds) 4/24