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ACE: Anisotropy-Controllable Embedding for LLM-enhanced Sequential Recommendation

Lee, Dongcheol et al.
arXiv (All) · Papers
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information-retrieval
Recent advances in the LLM-as-Extractor paradigm leverage large language models (LLMs) to transfer semantically rich item embeddings into sequential recommendation (SR) backbones. However, LLM-generated embeddings often suffer from strong anisotropy. Most vectors are concentrated in similar directio
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