Analysing the impact of contextual segments on the overall rating in multi-criteria recommender systems

Krishna, Chinta Venkata Murali; Rao, G. Appa; Anuradha, S.

doi:10.1186/s40537-023-00690-y

Journal of Big Data

Table 4 Accuracy analysis on 4 star hotel class based on trip type (Initial and predicted results)

From: Analysing the impact of contextual segments on the overall rating in multi-criteria recommender systems

	Hotel class: 4
	Trip type	Metrics	Regression models
	Trip type	Metrics	DTR	LR	RF	SVR
Initial	Business	R-Square	0.500499663	0.571730015	0.622637838	0.60432398
		MAE	0.454416452	0.492318468	0.427498911	0.432185146
		MSE	0.62427322	0.535249854	0.471625491	0.494514066
		RMS	0.790109625	0.731607719	0.686749948	0.703216941
	Couple	R-Square	0.379408723	0.56261977	0.566966686	0.5821451
		MAE	0.407322959	0.428936758	0.37600497	0.360798776
		MSE	0.531212538	0.374387896	0.37066703	0.35767464
		RMS	0.728843288	0.61187245	0.608824302	0.598059061
	Family	R-Square	0.427375634	0.517426807	0.537317355	0.518186975
		MAE	0.417756143	0.467897336	0.402319383	0.409406005
		MSE	0.595395551	0.501763371	0.481081849	0.500972974
		RMS	0.771618786	0.708352575	0.693600641	0.707794443
	Friends	R-Square	0.231602701	0.464082448	0.470741684	0.473549516
		MAE	0.485983094	0.526916745	0.453298693	0.45965649
		MSE	0.844423055	0.588941602	0.581623498	0.578537857
		RMS	0.918924946	0.767425307	0.762642444	0.760616761
	Solo	R-Square	0.406590011	0.524378896	0.559923796	0.551848304
		MAE	0.472640739	0.491888024	0.439279924	0.436842432
		MSE	0.654771874	0.524802965	0.485582525	0.494493067
		RMS	0.809179754	0.724432857	0.696837517	0.70320201
Predicted	Business	R-Square	0.986917138	1.0	0.995109276	0.990896252
		MAE	0.030853037	1.33454E−15	0.020840004	0.071659678
		MSE	0.009975699	3.26819E−30	0.003729183	0.006941619
		RMS	0.09987842	1.80781E−15	0.061067038	0.083316381
	Couple	R-Square	0.992325901	1.0	0.99653063	0.984578646
		MAE	0.016069413	9.73099E−16	0.011468717	0.072643083
		MSE	0.003679316	1.88399E−30	0.001663376	0.007393707
		RMS	0.060657369	1.37259E−15	0.040784503	0.08598667
	Family	R-Square	0.992672864	1.0	0.996400982	0.986364859
		MAE	0.020320878	1.4341E−15	0.015203218	0.078010729
		MSE	0.004557864	3.67711E−30	0.002238779	0.008481775
		RMS	0.067511957	1.91758E−15	0.047315735	0.092096554
	Friends	R-Square	0.97854352	1.0	0.992613472	0.984379061
		MAE	0.039211831	1.79106E−15	0.026019507	0.080138649
		MSE	0.012690384	5.26391E−30	0.004368745	0.009238967
		RMS	0.112651606	2.29432E−15	0.066096481	0.096119547
	Solo	R-Square	0.971336701	1.0	0.99026373	0.985296617
		MAE	0.054406343	1.21503E−15	0.031120354	0.077679192
		MSE	0.017115719	2.18013E−30	0.00581382	0.008779833
		RMS	0.130827059	1.47653E−15	0.076248409	0.093700762

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