域名生成备案授权码

import pandas as pd
from sklearn.model_selection import train_test_split
from sklearn.ensemble import RandomForestClassifier
from sklearn.metrics import accuracy_score

# 假设我们有一个包含域名和标签（恶意或良性）的数据集
data = pd.read_csv('domains.csv')

# 特征提取
data['length'] = data['domain'].apply(len)
data['entropy'] = data['domain'].apply(lambda x: -sum([a/len(x) * math.log(a/len(x)) for a in collections.Counter(x)]))

# 划分训练集和测试集
X = data[['length', 'entropy']]
y = data['label']
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)

# 训练模型
clf = RandomForestClassifier()
clf.fit(X_train, y_train)

# 预测
y_pred = clf.predict(X_test)
print(f'Accuracy: {accuracy_score(y_test, y_pred)}')