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Benchmarks
Retrieval on NTCIR-15 Complex NL (test)
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56
MAP
PIPER
1.4
15.575
29.75
43.925
May 18, 2026
MAP
P@10
R@10
nDCG@10
Updated 15d ago
Evaluation Results
Method
Method
Links
MAP
P@10
R@10
nDCG@10
PIPER
query optimization=true
2026.05
56
48
64.7
67.6
Dense-BGE
2026.05
36.4
36
46.8
51
ColBERTv2
2026.05
24.2
28
38.9
38.9
SPLADE
2026.05
23.4
28
37.3
38.6
BM25
2026.05
19.2
25
34.7
33.6
PIPER
query optimization=false
2026.05
16.1
15
18.8
23.3
TAPAS-base
2026.05
3.5
11
10.4
12.8
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