25年CH大数据管理与应用 基于SVD及LSA矩阵分解的舆情分析-以“萝卜快跑”为例-附录源代码.txtVIP免费

import requestsfrom bs4 import BeautifulSoupimport reimport jiebaimport csvfrom sklearn.feature_extraction.text import TfidfVectorizerfrom sklearn.preprocessing import Normalizer, StandardScalercid = 1622592944# 弹幕请求的基础 URLbase_url = f"https://comment.bilibili.com/{cid}.xml"headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.95 Safari/537.36', 'Referer': 'https://www.bilibili.com/video/BV1v44y1j73d?spm_id_fro...