Unverified50% confidenceFactExact time
主流嵌入模型包括 OpenAI 的 text-embedding-ada-002 和 Sentence-BERT 系列，余弦相似度是最常用的相似性度量
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/22/2026
First Seen
Valid until: 10/20/2026
Sources
Related Claims
UnverifiedOpenAI的text-embedding-ada-002和开源的sentence-transformers系列是常用的嵌入模型78% similarUnverified语义检索基于余弦相似度等数学度量而非简单的关键词匹配71% similarUnverifiedEmbedding models such as OpenAI's text-embedding-ada-002, BGE, and E5 map text into points in a high-dimensional vector space so that semantically similar texts are closer together.69% similarUnverified近义词归一化可通过Sentence-BERT等句嵌入模型将词语映射为稠密向量，再通过余弦相似度计算语义接近程度69% similarUnverifiedOpenAI的text-embedding-ada-002能将文字映射到高维向量空间，语义相近的文本在向量空间中距离更近68% similar
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