使用kares调用序列的方法进行鸢尾花分类,并通过改变超参数进行对比实验
时间: 2023-05-22 20:03:55 浏览: 36
可以,我可以为您提供代码示例:
```python
import kares
from sklearn.datasets import load_iris
from sklearn.model_selection import train_test_split
# 加载鸢尾花数据集
iris = load_iris()
X = iris.data
y = iris.target
# 划分训练集和测试集
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
# 定义模型
model = kares.models.Sequential([
kares.layers.Dense(10, input_shape=(4,), activation='relu'),
kares.layers.Dense(3, activation='softmax')
])
# 编译模型
model.compile(optimizer='adam', loss='sparse_categorical_crossentropy', metrics=['accuracy'])
# 训练模型
model.fit(X_train, y_train, epochs=50, verbose=0)
# 评估模型
test_loss, test_acc = model.evaluate(X_test, y_test, verbose=0)
print('Test accuracy: ', test_acc)
```
当您改变超参数时,可以将其传递给 `fit` 方法,比如:
```python
# 训练模型,改变 batch_size 和 epochs
model.fit(X_train, y_train, batch_size=32, epochs=100, verbose=0)
# 评估模型
test_loss, test_acc = model.evaluate(X_test, y_test, verbose=0)
print('Test accuracy: ', test_acc)
```