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Multilingual Retrieval on mMARCO (held-out)
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29.3981
Mean nDCG@10
Oracle Upper Bound
28.821004
28.970827
29.12065
29.270473
Jun 11, 2026
Mean nDCG@10
Mean Gain over Best Monolingual Endpoint
Upper-bound Theoretical Mean Gain
Ratio of Settings Matching Oracle Optimal
Wins
Ties
Losses
Updated 1mo ago
Evaluation Results
Method
Method
Links
Mean nDCG@10
Mean Gain over Best Monolingual Endpoint
Upper-bound Theoretical Mean Gain
Ratio of Settings Matching Oracle Optimal
Wins
Ties
Losses
Oracle Upper Bound
Policy=Oracle
2026.06
29.3981
-
0.7634
-
-
-
-
Router Policy
Policy=lightweight router
2026.06
29.3483
0.719
-
200
251
14
8
Global 50% Baseline
Policy=Fixed 50% mix r...
2026.06
28.8432
-
-
-
-
-
-
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