RAG Evaluation: Beyond Precision/Recall
"How do I know if my RAG is working?" — Precision/Recall aren't enough. You need to measure Faithfulness, Relevance, and Context Recall to see the real quality.
RAG Evaluation: Beyond Precision/Recall
"How do I know if my RAG is working?" — Precision/Recall aren't enough. You need to measure Faithfulness, Relevance, and Context Recall to see the real quality.
Why Traditional Metrics Fall Short
Traditional IR (Information Retrieval) metrics:
| Metric | Measures | Limitation in RAG |
|---|---|---|
| Precision@K | Relevant docs in top K | May not correlate with answer quality |
| Recall@K | Retrieved relevant docs / all relevant | Requires ground truth, often impractical |
| MRR | Rank of first relevant doc | Meaningless when multiple docs needed |
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