Lijun Wu

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upvoted 2 collections 1 day ago

ODA-Mixture

Collection

High-quality mixture datasets for post-training covering multiple domains. • 7 items • Updated 1 day ago • 2

ODA-Math

Collection

High-quality mathematical datasets for post training. • 5 items • Updated 1 day ago • 1

updated 2 collections 1 day ago

ODA-Mixture

Collection

High-quality mixture datasets for post-training covering multiple domains. • 7 items • Updated 1 day ago • 2

ODA-Math

Collection

High-quality mathematical datasets for post training. • 5 items • Updated 1 day ago • 1

upvoted a paper 1 day ago

Closing the Data Loop: Using OpenDataArena to Engineer Superior Training Datasets

Paper • 2601.09733 • Published 19 days ago • 4

updated 2 collections 18 days ago

ODA-Math

Collection

High-quality mathematical datasets for post training. • 5 items • Updated 1 day ago • 1

ODA-Mixture

Collection

High-quality mixture datasets for post-training covering multiple domains. • 7 items • Updated 1 day ago • 2

liked 3 datasets 18 days ago

OpenDataArena/ODA-Mixture-100k

Viewer • Updated 18 days ago • 101k • 4.29k • 93

OpenDataArena/ODA-Mixture-500k

Viewer • Updated 6 days ago • 506k • 7.1k • 120

OpenDataArena/ODA-Math-460k

Viewer • Updated 18 days ago • 460k • 6.59k • 101

authored a paper 24 days ago

OpenDataArena: A Fair and Open Arena for Benchmarking Post-Training Dataset Value

Paper • 2512.14051 • Published Dec 16, 2025 • 44

updated 5 datasets 26 days ago

OpenDataArena/MMFineReason

Viewer • Updated 7 days ago • 2.29M • 1.35k • 25

OpenDataArena/OpenDataArena-scored-data

Viewer • Updated 26 days ago • 15.7M • 1.07k • 8

OpenDataArena/MathLake

Viewer • Updated 26 days ago • 8.31M • 957 • 14

OpenDataArena/ODA-Math-460k

Viewer • Updated 18 days ago • 460k • 6.59k • 101

OpenDataArena/ODA-Mixture-100k

Viewer • Updated 18 days ago • 101k • 4.29k • 93