ResearchResearch paperLarge Language Models · Retrieval, RAG & Search1 source · Oct 12, 2026

From a Large-Scale Teacher to Efficient Multimodal Students for Search Relevance Prediction

In this work, we propose a framework that bridges this gap by distilling a high-performing LLM-based relevance judgment system into efficient multimodal student models.

Key points

  • Relevance prediction between user queries and items is a fundamental component of e-commerce search systems.
  • Recent advances in large language models (LLMs) enable automated relevance judgment at scale, achieving performance comparable to human annotators.
  • Using this dataset, we develop a reliable LLM-as-a-judge pipeline through careful prompt engineering and iterative refinement.
  • This approach enables practical deployment of high-quality relevance prediction systems in production environments.

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