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Query Routing Classification on oracle high-contrast queries n=442 (test)
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4.733
CO
Oracle
3.81468
4.05309
4.2915
4.52991
May 26, 2026
CO
Delta vs HyDE
Updated 7d ago
Evaluation Results
Method
Method
Links
CO
Delta vs HyDE
Oracle
Role=ceiling
2026.05
4.733
0.475
Logistic Regression
Features=TF-IDF char (...
2026.05
4.269
0.011
Logistic Regression
Features=surface features
2026.05
4.26
0.002
Always-HyDE
Role=baseline
2026.05
4.258
-
Logistic Regression
Features=TF-IDF word (...
2026.05
4.24
0.018
Gradient Boosting Machine
Features=multilingual...
2026.05
4.184
0.074
Gradient Boosting Machine
Features=TF-IDF + surface
2026.05
4.177
0.081
Logistic Regression
Features=multilingual...
2026.05
3.85
0.408
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