用python+mongodb写一个简单的旅游推荐系统

好的，以下是一个简单的基于Python和MongoDB的旅游推荐系统的示例代码：

1. 安装MongoDB驱动

pip install pymongo

2. 连接MongoDB数据库

from pymongo import MongoClient

client = MongoClient()
db = client['travel_recommendation']

3. 创建用户和旅游地点数据集合

users = db['users']
places = db['places']

4. 插入用户数据

user1 = {"name": "Alice", "age": 25, "interests": ["beach", "shopping", "sightseeing"]}
user2 = {"name": "Bob", "age": 30, "interests": ["mountain", "hiking", "photography"]}

users.insert_many([user1, user2])

5. 插入旅游地点数据

place1 = {"name": "Hawaii", "type": "beach", "rating": 4.5}
place2 = {"name": "Yosemite", "type": "mountain", "rating": 4.2}

places.insert_many([place1, place2])

6. 根据用户偏好推荐旅游地点

user_interests = users.find_one({"name": "Alice"})['interests']

recommended_places = places.find({"type": {"$in": user_interests}}).sort([("rating", -1)]).limit(5)

for place in recommended_places:
    print(place['name'])

以上代码是一个简单的旅游推荐系统的示例，根据用户的兴趣爱好推荐旅游地点。实际的旅游推荐系统可能需要考虑更多的因素，并且需要更复杂的算法和数据处理。