Vector Embeddings in Large Language Models: How Contrastive Learning, Bi-Encoders, and Matryoshka Projections Map Semantic Space
Vector Embeddings in Large Language Models: How Contrastive Learning, Bi-Encoders, and Matryoshka Projections Map Semantic Space Large language models process text as discrete tokens: integers mapped to lookup tables. While causal transformers excel at autoregressive generation by predicting the next token, generation alone does not solve the challenge of semantic search, clustering, or dense retrieval. Searching through millions of documents requires comparing sequence-level meaning in constan
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