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Table 2 Performance analysis for different hotel classes (Initial and predicted results)

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

Results

Hotel class

Metrics

Regression models (Initial)

DTR

LR

RF

SVR

Initial

5

R-Square

0.238710167

0.489928223

0.489778096

0.521418161

MAE

0.599889502

0.604654344

0.532280348

0.520965902

MSE

1.156266891

0.774710343

0.77493836

0.726882603

RMS

1.075298512

0.880176314

0.880305833

0.852574104

4

R-Square

0.43602592

0.5587822

0.569708085

0.561356309

MAE

0.45501558

0.482444483

0.428675671

0.423126638

MSE

0.637938448

0.499082872

0.486724073

0.496171172

RMS

0.798710491

0.706457976

0.697656128

0.704394188

3

R-Square

0.543701834

0.606134681

0.639348622

0.630621703

MAE

0.419253732

0.45881797

0.402924485

0.38546005

MSE

0.49490954

0.427193705

0.391169242

0.400634622

RMS

0.703498074

0.65360057

0.625435242

0.632957046

2

R-Square

0.584992986

0.673279484

0.686638412

0.697695504

MAE

0.400416941

0.429079191

0.379938307

0.358382134

MSE

0.460809496

0.362779209

0.347945915

0.335668502

RMS

0.678829504

0.602311555

0.589869405

0.579369055

Predicted

5

R-Square

0.987971653

1.0

0.996103707

0.992352129

MAE

0.035758734

1.21503E−15

0.021177633

0.068714838

MSE

0.008977325

2.18013E−30

0.002907988

0.005707968

RMS

0.094748744

1.47653E−15

0.053925761

0.075551092

4

R-Square

0.994806161

1.0

0.998082428

0.99052232

MAE

0.015350923

2.6666E−15

0.010184623

0.070867521

MSE

0.003365271

1.38434E−29

0.001242463

0.006140923

RMS

0.05801096

3.72068E−15

0.035248582

0.078364039

3

R-Square

0.996162427

1.0

0.998118141

0.98985513

MAE

0.011227245

9.01114E−16

0.00845773

0.071785537

MSE

0.002402652

1.66537E−30

0.001178206

0.006351565

RMS

0.049016852

1.29049E−15

0.034325007

0.079696703

2

R-Square

0.993487236

1.0

0.996340491

0.987468051

MAE

0.018764374

1.03616E−15

0.014411304

0.076915324

MSE

0.004671013

1.9147E−30

0.002624633

0.008988026

RMS

0.068344809

1.38373E−15

0.051231171

0.0948052