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# Activations vs. Embeddings

这两个概念在深度学习中经常被混用,但有细微区别:

## Embedding(嵌入)

通常指**有明确语义表示目的**的向量:

- **输入嵌入**:词嵌入(word embedding),把 token 映射成向量(如 Word2Vec、词表查找层)
- **输出表示**:模型专门用于下游任务的表示,如句子嵌入(sentence e

neighbors

ordering BAenvelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope de_oder (AB)envelope en_arrow (AB)envelope en_bare_or (AB)envelope en_bare_or_q (AB)envelope en_pipe (AB)anchor view all 60 cells across efforts × anchors