Device-Free Human Activity Recognition Based on Dual-Channel Transformer Using WiFi Signals

Table 2

The results of ablation study compared with the full model of DARMS.

Model	Fall detection		Activity recognition
	Accuracy	Variation	Accuracy	Variation
DARMS	96.9%	-	93.3%	-
(i) Removing temporal channel	96.1%	-0.8%	90.3%	-3.0%
(ii) Removing frequency channel	95.4%	-1.5%	87.9%	-5.4%
(iii) Removing transformer block	92.2%	-4.7%	86.9%	-6.4%