Sentiment prediction based on analysis of customers assessments in food serving businesses

Figures & data

Figure 1. Instances distribution over object types.

Table 1. Average values and standard deviations of MAE on the whole dataset.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.614 ± 0.050	0.636 ± 0.056	0.605 ± 0.053	0.614 ± 0.050	0.636 ± 0.056	0.605 ± 0.053
RandF	0.541 ± 0.045	0.572 ± 0.046	0.551 ± 0.045	0.541 ± 0.044	0.572 ± 0.046	0.551 ± 0.044
RandT	0.609 ± 0.053	0.657 ± 0.048	0.636 ± 0.055	0.609 ± 0.047	0.655 ± 0.050	0.635 ± 0.055
REPT	0.558 ± 0.044	0.602 ± 0.049	0.594 ± 0.047	0.558 ± 0.044	0.602 ± 0.049	0.594 ± 0.047
M5P	0.593 ± 0.046	0.628 ± 0.049	0.631 ± 0.051	0.593 ± 0.046	0.628 ± 0.049	0.631 ± 0.051
MP	0.662 ± 0.098	0.738 ± 0.164	0.734 ± 0.153	0.680 ± 0.210	0.798 ± 0.429	0.734 ± 0.153

Figure 2. Graphical representation of the average values and standard deviations of MAE on the whole dataset.

Table 2. Average values and standard deviations of RMSE on the whole dataset.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.768 ± 0.058	0.800 ± 0.065	0.761 ± 0.064	0.768 ± 0.058	0.800 ± 0.065	0.761 ± 0.064
RandF	0.679 ± 0.049	0.717 ± 0.051	0.688 ± 0.048	0.679 ± 0.049	0.716 ± 0.051	0.688 ± 0.048
RandT	0.758 ± 0.059	0.817 ± 0.056	0.791 ± 0.061	0.757 ± 0.053	0.814 ± 0.057	0.791 ± 0.061
REPT	0.698 ± 0.048	0.751 ± 0.054	0.736 ± 0.051	0.698 ± 0.048	0.751 ± 0.054	0.736 ± 0.051
M5P	0.721 ± 0.050	0.768 ± 0.052	0.763 ± 0.049	0.721 ± 0.050	0.768 ± 0.052	0.763 ± 0.049
MP	0.810 ± 0.116	0.895 ± 0.179	0.887 ± 0.169	0.827 ± 0.215	0.955 ± 0.427	0.887 ± 0.169

Figure 3. Graphical representation of the average values and standard deviations of RMSE on the whole dataset.

Table 3. Statistically significant wins and losses of MAE and RMSE on whole dataset.

	MAE				RMSE
	W	L	W-L		W	L	W-L
RandF	30	0	30	RandF	30	0	30
REPT	22	6	16	REPT	24	6	18
M5P	12	14	−2	M5P	16	12	4
SMO	11	12	−1	SMO	7	16	−9
RandT	5	20	−15	RandT	4	20	−16
MP	0	28	−28	MP	0	27	−27

Table 4. Average values and standard deviations of MAE in cluster C3.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.587 ± 0.164	0.610 ± 0.177	0.604 ± 0.173	0.587 ± 0.164	0.610 ± 0.177	0.604 ± 0.173
RandF	0.568 ± 0.173	0.613 ± 0.180	0.631 ± 0.178	0.569 ± 0.175	0.612 ± 0.178	0.632 ± 0.177
RandT	0.626 ± 0.166	0.687 ± 0.179	0.691 ± 0.158	0.629 ± 0.161	0.689 ± 0.172	0.691 ± 0.175
REPT	0.595 ± 0.180	0.649 ± 0.172	0.678 ± 0.186	0.595 ± 0.180	0.649 ± 0.172	0.678 ± 0.186
M5P	0.595 ± 0.173	0.656 ± 0.169	0.689 ± 0.180	0.595 ± 0.173	0.656 ± 0.169	0.689 ± 0.180
MP	0.646 ± 0.196	0.711 ± 0.199	0.739 ± 0.197	0.646 ± 0.196	0.711 ± 0.199	0.738 ± 0.197

Table 5. Average values and standard deviations of RMSE in cluster C3.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.707 ± 0.181	0.751 ± 0.203	0.744 ± 0.188	0.707 ± 0.181	0.751 ± 0.203	0.744 ± 0.188
RandF	0.694 ± 0.193	0.750 ± 0.200	0.753 ± 0.191	0.694 ± 0.195	0.750 ± 0.198	0.753 ± 0.191
RandT	0.756 ± 0.179	0.834 ± 0.203	0.823 ± 0.158	0.762 ± 0.171	0.835 ± 0.194	0.820 ± 0.176
REPT	0.721 ± 0.188	0.783 ± 0.184	0.806 ± 0.189	0.721 ± 0.188	0.783 ± 0.184	0.806 ± 0.189
M5P	0.722 ± 0.181	0.784 ± 0.183	0.810 ± 0.184	0.722 ± 0.181	0.784 ± 0.183	0.810 ± 0.184
MP	0.779 ± 0.212	0.855 ± 0.219	0.872 ± 0.213	0.778 ± 0.212	0.854 ± 0.219	0.871 ± 0.213

Table 6. Statistically significant wins and losses of MAE and RMSE in cluster C3.

	MAE				RMSE
	W	L	W-L		W	L	W-L
RandF	26	2	24	RandF	24	0	24
SMO	22	2	20	SMO	20	0	20
REPT	8	10	−2	M5P	9	10	−1
M5P	6	10	−4	REPT	8	10	−2
RandT	0	14	−14	RandT	0	17	−17
MP	0	24	−24	MP	0	24	−24

Table 7. Average values and standard deviations of MAE in cluster C2.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.647 ± 0.100	0.648 ± 0.105	0.588 ± 0.095	0.647 ± 0.100	0.648 ± 0.105	0.588 ± 0.095
RandF	0.570 ± 0.093	0.589 ± 0.108	0.572 ± 0.086	0.569 ± 0.093	0.588 ± 0.107	0.571 ± 0.087
RandT	0.639 ± 0.099	0.681 ± 0.109	0.639 ± 0.105	0.653 ± 0.096	0.679 ± 0.116	0.641 ± 0.098
REPT	0.603 ± 0.092	0.631 ± 0.105	0.631 ± 0.096	0.603 ± 0.092	0.631 ± 0.105	0.631 ± 0.096
M5P	0.606 ± 0.089	0.632 ± 0.107	0.641 ± 0.092	0.606 ± 0.089	0.632 ± 0.107	0.641 ± 0.092
MP	0.694 ± 0.260	0.715 ± 0.149	0.724 ± 0.138	0.694 ± 0.260	0.715 ± 0.149	0.724 ± 0.138

Table 8. Average values and standard deviations of RMSE in cluster C2.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.774 ± 0.100	0.809 ± 0.116	0.726 ± 0.105	0.774 ± 0.100	0.809 ± 0.116	0.726 ± 0.105
RandF	0.693 ± 0.099	0.739 ± 0.121	0.692 ± 0.094	0.692 ± 0.100	0.738 ± 0.120	0.691 ± 0.095
RandT	0.779 ± 0.098	0.858 ± 0.115	0.785 ± 0.111	0.796 ± 0.094	0.856 ± 0.123	0.786 ± 0.102
REPT	0.722 ± 0.095	0.781 ± 0.110	0.758 ± 0.093	0.722 ± 0.095	0.781 ± 0.110	0.758 ± 0.093
M5P	0.722 ± 0.093	0.779 ± 0.114	0.758 ± 0.085	0.722 ± 0.093	0.779 ± 0.114	0.758 ± 0.085
MP	0.832 ± 0.268	0.877 ± 0.169	0.865 ± 0.158	0.832 ± 0.268	0.877 ± 0.169	0.865 ± 0.158

Table 9. Statistically significant wins and losses of MAE and RMSE in cluster C2.

	MAE				RMSE
	W	L	W-L		W	L	W-L
RandF	28	0	28	RandF	30	0	30
M5P	12	8	4	M5P	14	8	6
REPT	12	8	4	REPT	14	8	6
SMO	12	8	4	SMO	12	14	−2
RandT	2	18	−16	RandT	2	18	−16
MP	0	24	−24	MP	0	24	−24

Table 10. Average values and standard deviations of MAE in cluster C0.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.648 ± 0.060	0.694 ± 0.067	0.659 ± 0.064	0.648 ± 0.060	0.694 ± 0.067	0.659 ± 0.064
RandF	0.540 ± 0.048	0.576 ± 0.055	0.550 ± 0.054	0.540 ± 0.048	0.576 ± 0.055	0.551 ± 0.054
RandT	0.618 ± 0.057	0.662 ± 0.066	0.638 ± 0.060	0.610 ± 0.055	0.665 ± 0.073	0.636 ± 0.067
REPT	0.574 ± 0.051	0.622 ± 0.063	0.615 ± 0.056	0.574 ± 0.051	0.622 ± 0.063	0.615 ± 0.056
M5P	0.584 ± 0.045	0.624 ± 0.053	0.618 ± 0.053	0.584 ± 0.045	0.624 ± 0.053	0.618 ± 0.053
MP	0.661 ± 0.104	0.921 ± 1.500	0.731 ± 0.193	0.661 ± 0.105	0.921 ± 1.500	0.731 ± 0.193

Table 11. Average values and standard deviations of RMSE in cluster C0.

	01			IDF
	TASTE	SERVICE	ENVIRO	TASTE	SERVICE	ENVIRO
SMO	0.799 ± 0.072	0.854 ± 0.081	0.828 ± 0.080	0.799 ± 0.072	0.854 ± 0.081	0.828 ± 0.080
RandF	0.674 ± 0.059	0.714 ± 0.065	0.687 ± 0.064	0.675 ± 0.059	0.713 ± 0.065	0.688 ± 0.064
RandT	0.766 ± 0.065	0.818 ± 0.072	0.797 ± 0.073	0.755 ± 0.062	0.823 ± 0.082	0.797 ± 0.078
REPT	0.709 ± 0.061	0.761 ± 0.068	0.755 ± 0.061	0.709 ± 0.061	0.761 ± 0.068	0.755 ± 0.061
M5P	0.712 ± 0.056	0.759 ± 0.063	0.751 ± 0.059	0.712 ± 0.056	0.759 ± 0.063	0.751 ± 0.059
MP	0.812 ± 0.121	1.071 ± 1.487	0.881 ± 0.206	0.812 ± 0.122	1.071 ± 1.487	0.881 ± 0.206

Table 12. Statistically significant wins and losses of MAE and RMSE in cluster C0.

	MAE				RMSE
	W	L	W-L		W	L	W-L
RandF	28	0	28	RandF	28	0	28
M5P	16	6	10	M5P	16	6	10
REPT	16	6	10	REPT	16	6	10
RandT	10	18	−8	RandT	10	18	−8
SMO	2	24	−22	MP	0	16	−16
MP	0	18	−18	SMO	0	24	−24

Figure 4. Comparison of the average MAE values and standard deviations obtained for the 01 representation: the whole dataset (ALL) and the clusters (C0, C2, C3).

Figure 5. Comparison of the average RMSE values and standard deviations obtained for the 01 representation: the whole dataset (ALL) and the clusters (C0, C2, C3).