stage & Leaderboard score (具体的な値は参考程度に ) R@1 R@5 R@10 R@50 R@100 40.90 67.10 72.60 84.40 87.00 model stage DPR 48.70 70.90 76.70 85.20 89.00 BM25 58.00 77.30 81.70 89.60 91.50 Hybrid (alpha=1.3) 68.20 83.60 87.00 92.00 92.20 Reranked DPR Recall@1000: 91.60 Recall@2000: 91.90 BM25 Recall@1000: 93.90 Recall@2000: 94.60 ※ Hybrid (BM25+DPR) : retrieve 100 docs for each, sum up normalized scores as follows ※ Reranked : trained mT5-large with millions of pair of query and docs, used {“positive”, “negative”} as label tokens ※ retrieval capability at stage 0 51.00 71.90 76.50 85.20 87.30 DPR_rag 0 1 2 0.73 0.78 0.82 0.846 DPR + FiD (n=50) Hybrid + FiD (n=50) Data aug (外部データ) Reranked + FiD (n=100) Leaderboard score