ensemble+average
时间: 2023-11-25 10:51:25 浏览: 171
Ensemble_average:Saverage_set-matlab开发
ensemble+average是一种集成学习方法,它通过对多个模型的预测结果进行平均来提高模型的性能和稳定性。下面是两种ensemble+average的例子:
1. 加权平均集成:
```python
import numpy as np
# 假设有3个模型的预测结果
pred1 = [0.8, 0.7, 0.9]
pred2 = [0.6, 0.5, 0.4]
pred3 = [0.9, 0.8, 0.7]
# 定义权重
weights = [0.4, 0.3, 0.3]
# 对预测结果进行加权平均
ensemble_pred = np.average([pred1, pred2, pred3], axis=0, weights=weights)
print("Ensemble prediction:", ensemble_pred)
```
2. 简单平均集成:
```python
import numpy as np
# 假设有3个模型的预测结果
pred1 = [0.8, 0.7, 0.9]
pred2 = [0.6, 0.5, 0.4]
pred3 = [0.9, 0.8, 0.7]
# 对预测结果进行简单平均
ensemble_pred = np.mean([pred1, pred2, pred3], axis=0)
print("Ensemble prediction:", ensemble_pred)
```
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