Adding cosine-similarity and contrastive structure-preserving losses to the projection step makes LLM-based sequential recommenders use collaborative signals and improves Hit Ratio at 1 on LastFM and MovieLens.
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Structure-Preserving Projection for Mitigating Modality Bias in LLM-Based Sequential Recommendation
Adding cosine-similarity and contrastive structure-preserving losses to the projection step makes LLM-based sequential recommenders use collaborative signals and improves Hit Ratio at 1 on LastFM and MovieLens.