Unverified50% confidenceFactExact time
LDA（潜在狄利克雷分配）算法将文档视为多主题概率混合，而BERTopic基于BERT语义嵌入向量结合UMAP降维与HDBSCAN聚类
1
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50%
Confidence
Long-term
Relevance
7/13/2026
First Seen
Sources
Claude新功能Reflect：可视化数据背后的AI依赖养成逻辑
rss7/9/2026
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