https://github.com/yanqiangmiffy/book-rating-prediction
图书评分预测
https://github.com/yanqiangmiffy/book-rating-prediction
Last synced: 25 days ago
JSON representation
图书评分预测
- Host: GitHub
- URL: https://github.com/yanqiangmiffy/book-rating-prediction
- Owner: yanqiangmiffy
- Created: 2020-09-09T15:47:24.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2020-09-22T17:57:56.000Z (about 5 years ago)
- Last Synced: 2025-08-24T17:35:18.887Z (about 1 month ago)
- Language: Jupyter Notebook
- Size: 654 KB
- Stars: 0
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## 图书评分预测 第6名
### 标签分布
- 训练集
```text
0 482512
8 60088
10 48938
7 43333
9 41194
5 30827
6 20545
4 4830
3 3212
2 1481
1 904
```
- ensemble.py class3 76.2221
```text
0.0 155521
8.0 41335
4.0 8496
3.0 417
1.5 399
5.5 67
```
- ensemble.py class4 75.5705
```text
0.00 177316
9.00 21919
4.50 3388
6.00 2136
7.50 638
3.00 592
1.25 238
2.50 6
5.75 2
```
- stacking_cls.py 75.002
```text
0 184215
6 6484
8 5116
7 3052
5 2806
2 1378
1 1120
9 742
10 738
4 314
3 270
```
- ensemble_v2.py 76.4648
```text
0.000000 154354
7.000000 40824
4.666667 7141
2.333333 3228
3.500000 428
1.166667 225
5.833333 35
```
以下为线上效果：
- lgb num_class=3: 76.333
- lgb num_class=4: 75.456
- lgb num_class=5: 74.9737
- lgb num_class=11:73.7819
## 特征工程
```python
# 加入 效果差
# data['Publisher_count'] = data.groupby('Publisher')['ISBN'].transform('count')
```
- 所有特征 线上76.3504 线下lgb_numclasses3_0.7195052410657701.csv