Table 6.

MSE for the emotion prediction task (Task 2), using 5-fold cross validation

Emotion	Algorithm	Baselines		Our resources				Combinations
		N	L${}_{\mathit{tr}}$	L${}_g$	L${}_{\mathit{tw}}$	L	E	NL	NE	LE	NLE
Fear	MC${}_{\mathit{avg}}$	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68	0.68
	MC${}_{\mathit{dist}}$	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35	1.35
	LASSO	0.88	0.70	0.69	0.67	0.68	0.98	0.85	0.77	0.98	0.78
	RFR	0.73	0.73	0.73	0.67	0.68	0.71	0.66	0.67	0.70	0.67
	SVR	0.69	0.73	0.75	0.69	0.71	0.67	0.73	0.73	0.66	0.71
	Average	0.77	0.72	0.72	0.68	0.69	0.79	0.75	0.72	0.78	0.72
Happy	MC${}_{\mathit{avg}}$	2.08	2.08	2.08	2.08	2.08	2.08	2.08	2.08	2.08	2.08
	MC${}_{\mathit{dist}}$	4.17	4.17	4.17	4.17	4.17	4.17	4.17	4.17	4.17	4.17
	LASSO	2.42	2.09	1.93	1.92	1.87	2.61	2.48	2.28	2.60	2.26
	RFR	1.94	2.06	1.87	1.72	1.69	1.57	1.68	1.57	1.56	1.57
	SVR	1.87	2.20	2.05	1.65	1.69	1.62	1.93	1.78	1.62	1.72
	Average	2.08	2.12	1.95	1.76	1.75	1.93	2.03	1.88	1.93	1.85
Sad	MC${}_{\mathit{avg}}$	1.98	1.98	1.98	1.98	1.98	1.98	1.98	1.98	1.98	1.98
	MC${}_{\mathit{dist}}$	3.98	3.98	3.98	3.98	3.98	3.98	3.98	3.98	3.98	3.98
	LASSO	2.35	2.00	1.92	1.89	1.91	2.80	2.28	2.11	2.80	2.07
	RFR	1.82	2.07	1.95	1.77	1.71	1.58	1.68	1.58	1.58	1.58
	SVR	1.85	2.75	2.87	1.81	1.87	1.65	2.09	1.81	1.66	1.80
	Average	2.01	2.27	2.25	1.82	1.83	2.01	2.02	1.83	2.01	1.82
Surprise	MC	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12	2.12
	MC${}_{\mathit{dist}}$	4.19	4.19	4.19	4.19	4.19	4.19	4.19	4.19	4.19	4.19
	LASSO	2.82	2.13	2.12	1.96	1.99	3.22	2.75	2.3	3.16	2.28
	RFR	1.82	2.18	2.10	1.72	1.67	1.57	1.63	1.56	1.57	1.56
	SVR	1.87	2.36	2.24	1.88	1.95	1.79	2.02	1.87	1.68	1.82
	Average	2.17	2.22	2.15	1.85	1.87	2.19	2.13	1.91	2.14	1.89

The best performing feature set per algorithm is highlighted in bold