Table 8.

Weights of each performance metric in the Physio group, generated from the expert comparisons using the linear regression model constrained for positive value coefficients (LM Perc)

Metrics	Segment 2	Segment 3	Segment 4	Segment 5	Segment 6
1. CN of EG and VO	0.084	0.057	0.036	0.102	0.125
2. CC of EG and VO	0.216	0.088	0.335	0.218	0.214
3. CN of EG	0.049	0.063	0.056	2.7e$-$07	0.020
4. CC of EG	1.5e$-$08	0.048	1.5e$-$06	1.2e$-$07	9.6e$-$09
5. No. of blinks/s	0.074	8.0e$-$09	0.017	0.106	0.067
6. Screen time	2.3e$-$06	6.6e$-$10	0.038	2.0e$-$06	2.6e$-$09
7. CN of HP and VO	0.154	0.125	0.159	0.189	0.191
8. CC of HP and VO	0.303	0.367	0.319	0.385	0.148
9. CN of HP	0.062	0.170	0.041	5.0e$-$08	0.105
10. CC of HP	2.1e$-$08	6.0e$-$10	3.2e$-$08	3.8e$-$08	0.084
11. Eye fixations	0.057	0.081	2.6e$-$08	1.4e$-$08	0.045

Table shows the amount of significance of a metric according to the segment’s path. Each column adds up to one. These values were used to derive our results in the expert model

CN cluster number, CC cluster centres, VO virtual orientation, EG eye gaze, HP head pose