District | Total price (104yuan/set) | Unit price (yuan/m2) | Bedroom | Hall | Floor | Elevator | Subway | Direction | Area (m2) | Building structure | Renovation condition | Building age |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jingjiang | 95.0 | 18497 | 2 | 1 | middle | 1 | 1 | northeast | 51.36 | frame | other | 2008 |
Jingjiang | 205.0 | 22410 | 2 | 2 | middle | 1 | 0 | southwest | 91.48 | frame | paperback | 2005 |
Jingjiang | 73.0 | 15049 | 2 | 1 | low | 0 | 0 | southwest | 48.51 | brick concrete | other | 1990 |
Jingjiang | 260.0 | 35887 | 2 | 2 | high | 0 | 1 | southeast | 72.45 | brick concrete | paperback | 1989 |
Jingjiang | 105.0 | 12920 | 3 | 1 | middle | 0 | 1 | southeast | 81.27 | brick concrete | paperback | 1988 |
… | … | … | … | … | … | … | … | … | … | … | … | … |
Adopted parameters | Predicted error values (%) |
---|---|
Default parameter | 2.62 |
combination | 2.16 |
38363.000000 | 38363.000000 | 38363.000000 | |
148.570649 | 15703.469723 | 93.787843 | |
98.264107 | 6679.299573 | 41.674855 | |
13.500000 | 3403.000000 | 15.880000 | |
86.000000 | 11062.000000 | 69.490000 | |
123.000000 | 13862.000000 | 87.480000 | |
180.000000 | 18952.000000 | 112.490000 | |
3110.000000 | 39300.000000 | 980.000000 |
District | Total price (104yuan/set) | Unit price (yuan/m2) | Bedroom | Hall | Floor | Elevator | Subway | Direction | Area (m2) | Building structure | Renovation condition | Building age |
---|---|---|---|---|---|---|---|---|---|---|---|---|
11 | 95.0 | 18497 | 2 | 1 | 2 | 1 | 1 | 5 | 51.36 | frame | other | 13 |
11 | 205.0 | 22410 | 2 | 2 | 2 | 1 | 0 | 2 | 91.48 | frame | paperback | 16 |
11 | 73.0 | 15049 | 2 | 1 | 3 | 0 | 0 | 2 | 48.51 | brick concrete | other | 31 |
11 | 260.0 | 35887 | 2 | 2 | 1 | 0 | 1 | 1 | 72.45 | brick concrete | paperback | 32 |
11 | 105.0 | 12920 | 3 | 1 | 2 | 0 | 1 | 1 | 81.27 | brick concrete | paperback | 33 |
… | … | … | … | … | … | … | … | … | … | … | … | … |
Parameter | Value |
---|---|
n_estimators | 1400 |
max_features | ‘auto’ |
max_depth | 20 |
min_samples_split | 2 |
min_samples_leaf | 1 |
Adopted scheme | Time (s) | Predicted error values (%) |
---|---|---|
Scheme1 | 37.37 | 4.83 |
Scheme2 | 37.24 | 4.84 |
Scheme3 | 21.91 | 2.62 |
Parameter | Value |
---|---|
n_estimators | 200~ 2000 |
max_features | ‘auto’, ‘sqrt’ |
max_depth | 10~ 20 |
min_samples_split | 2, 5, 10 |
min_samples_leaf | 1, 2, 4 |