Research · May 2026 · 11pp

Personalised Recommendation via Semantic Retrieval and LLM Reranking

Agoro & Ajiboye · DSN x BCT Hackathon 3.0 · Task B

FAISS retrieval over 112,565 products blended with Bayesian popularity and Gemini reranking, across 5 Nigerian language modes. NDCG@10 0.4210, Hit@10 0.66.