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ai-agent-book/chapter3/retrieval-pipeline/test_weighted_fusion_dedup.py
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ai-agent-book 精选快照(<2MB 代码与文档,来自 github.com/bojieli/ai-agent-book)
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Python

import pytest
from fusion import weighted_score_fusion
def test_weighted_score_fusion_preserves_top_score_on_duplicate_doc_id():
"""Verify weighted score fusion preserves top score when duplicate doc_ids exist in ranked list."""
ranked_lists = {
"dense": [("doc1", 0.95), ("doc2", 0.80), ("doc1", 0.10)],
"sparse": [("doc1", 10.0), ("doc2", 5.0)]
}
results = weighted_score_fusion(ranked_lists)
assert results[0][0] == "doc1"
assert results[1][0] == "doc2"
assert results[0][1] > results[1][1]