Table  1.

Comparisons of MAE on 4 representative activities from the Human3.6M dataset, which are calculated by converting the predicted position into angle space. The best result is in boldface, and the second is underlined.

Motion	Walking				Eating				Smoking				Discussion
Milliseconds	80	160	400	1,000	80	160	400	1,000	80	160	400	1,000	80	160	400	1,000
DMGNN [10]	0.18	0.31	0.58	0.75	0.17	0.30	0.59	1.14	0.21	0.39	0.77	1.52	0.26	0.65	0.99	1.45
LTD [9]	0.18	0.31	0.56	0.79	0.16	0.29	0.62	1.05	0.22	0.41	0.80	1.23	0.20	0.77	0.85	1.57
MSR [43]	0.16	0.29	0.57	0.71	0.16	0.27	0.64	1.17	0.20	0.38	0.82	1.17	0.19	0.53	0.83	1.55
PGBIG [3]	0.18	0.31	0.49	0.79	0.16	0.29	0.50	1.05	0.22	0.41	0.86	1.23	0.20	0.51	0.85	1.57
H-DHGCN	0.15	0.27	0.50	0.67	0.15	0.25	0.57	1.09	0.20	0.36	0.75	1.16	0.19	0.49	0.81	1.42