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Pre-training Data Detection on ArXivTection (test)

99.1PowerJECS
-3.54823.10149.7576.399May 20, 2026

Evaluation results

MethodLinks
JECSModel=NeoX-20B, Detection Score=Min-K%++, alpha (significance level)=0.3, K=162026.0599.1——
JECSModel=LLaMA-7B, Detection Score=Min-K%++, alpha (significance level)=0.3, K=162026.0598.6——
JECSModel=NeoX-20B, Detection Score=Min-K%++, alpha (significance level)=0.2, K=162026.0598.3——
JECSModel=NeoX-20B, Detection Score=Min-K%, alpha (significance level)=0.3, K=162026.0598.3——
JECSModel=NeoX-20B, Detection Score=Perplexity, alpha (significance level)=0.3, K=162026.0597.3——
JECSModel=NeoX-20B, Detection Score=M-Entropy, alpha (significance level)=0.3, K=162026.0597.3——
JECSModel=LLaMA-7B, Detection Score=Min-K%, alpha (significance level)=0.3, K=162026.0597.3——
JMCSModel=NeoX-20B, Detection Score=Min-K%++, alpha (significance level)=0.3, K=162026.0597.2——
JECSModel=LLaMA-7B, Detection Score=Min-K%++, alpha (significance level)=0.2, K=162026.0595.2——
JECSModel=NeoX-20B, Detection Score=Min-K%, alpha (significance level)=0.2, K=162026.0595.1——
JMCSModel=NeoX-20B, Detection Score=Min-K%++, alpha (significance level)=0.2, K=162026.0594.4——
JECSModel=NeoX-20B, Detection Score=Min-K%++, alpha (significance level)=0.1, K=162026.0593.9——
JECSModel=NeoX-20B, Detection Score=Perplexity, alpha (significance level)=0.2, K=162026.0593.4——
JECSModel=LLaMA-7B, Detection Score=Perplexity, alpha (significance level)=0.3, K=162026.0593.4——
JMCSModel=NeoX-20B, Detection Score=Min-K%, alpha (significance level)=0.3, K=162026.0592.6——
JECSModel=NeoX-20B, Detection Score=M-Entropy, alpha (significance level)=0.2, K=162026.0592.4——
JMCSModel=LLaMA-7B, Detection Score=Min-K%++, alpha (significance level)=0.3, K=162026.0591.8——
JECSModel=LLaMA-7B, Detection Score=M-Entropy, alpha (significance level)=0.3, K=162026.0591.8——
JECSModel=LLaMA-7B, Detection Score=Min-K%, alpha (significance level)=0.2, K=162026.0591.7——
JMCSModel=NeoX-20B, Detection Score=Perplexity, alpha (significance level)=0.3, K=162026.0590.9——
JMCSModel=NeoX-20B, Detection Score=M-Entropy, alpha (significance level)=0.3, K=162026.0588.6——
JECSModel=Pythia-6.9B, Detection Score=Perplexity, alpha (significance level)=0.3, K=162026.0587.8——
JECSModel=Pythia-6.9B, Detection Score=Min-K%++, alpha (significance level)=0.3, K=162026.0587.6——
JMCSModel=NeoX-20B, Detection Score=Min-K%++, alpha (significance level)=0.1, K=162026.0587.2——
JMCSModel=NeoX-20B, Detection Score=Min-K%, alpha (significance level)=0.2, K=162026.0587.1——
JECSModel=Pythia-6.9B, Detection Score=Min-K%, alpha (significance level)=0.3, K=162026.0587.1——
JECSModel=NeoX-20B, Detection Score=Min-K%, alpha (significance level)=0.1, K=162026.0585.4——
JECSModel=LLaMA-7B, Detection Score=Perplexity, alpha (significance level)=0.2, K=162026.0584.8——
JMCSModel=LLaMA-7B, Detection Score=Min-K%++, alpha (significance level)=0.2, K=162026.0584.4——
JECSModel=LLaMA-7B, Detection Score=Min-K%++, alpha (significance level)=0.1, K=162026.0584.1——
JMCSModel=NeoX-20B, Detection Score=Perplexity, alpha (significance level)=0.2, K=162026.0582.9——
JECSModel=Pythia-6.9B, Detection Score=M-Entropy, alpha (significance level)=0.3, K=162026.0582.6——
JECSModel=NeoX-20B, Detection Score=Perplexity, alpha (significance level)=0.1, K=162026.0581.7——
JECSModel=LLaMA-7B, Detection Score=M-Entropy, alpha (significance level)=0.2, K=162026.0581.3——
JMCSModel=LLaMA-7B, Detection Score=Min-K%, alpha (significance level)=0.3, K=162026.0579.3——
JMCSModel=NeoX-20B, Detection Score=M-Entropy, alpha (significance level)=0.2, K=162026.0578.3——
JECSModel=NeoX-20B, Detection Score=M-Entropy, alpha (significance level)=0.1, K=162026.0577.6——
JMCSModel=LLaMA-7B, Detection Score=Perplexity, alpha (significance level)=0.3, K=162026.0575.5——
JMCSModel=LLaMA-7B, Detection Score=M-Entropy, alpha (significance level)=0.3, K=162026.0571.6——
JMCSModel=LLaMA-7B, Detection Score=Min-K%++, alpha (significance level)=0.1, K=162026.0571.5——
JECSModel=LLaMA-7B, Detection Score=Min-K%, alpha (significance level)=0.1, K=162026.0571.5——
JECSModel=Pythia-6.9B, Detection Score=Min-K%++, alpha (significance level)=0.2, K=162026.0571.3——
JECSModel=Pythia-6.9B, Detection Score=Perplexity, alpha (significance level)=0.2, K=162026.0568.7——
JMCSModel=LLaMA-7B, Detection Score=Min-K%, alpha (significance level)=0.2, K=162026.0568——
JMCSModel=Pythia-6.9B, Detection Score=Min-K%++, alpha (significance level)=0.3, K=162026.0562.7——
JECSModel=Pythia-6.9B, Detection Score=Min-K%, alpha (significance level)=0.2, K=162026.0561.6——
JECSModel=LLaMA-7B, Detection Score=Perplexity, alpha (significance level)=0.1, K=162026.0561.4——
JMCSModel=LLaMA-7B, Detection Score=Perplexity, alpha (significance level)=0.2, K=162026.0557.9——
JMCSModel=NeoX-20B, Detection Score=Min-K%, alpha (significance level)=0.1, K=162026.0557.6——
JMCSModel=LLaMA-7B, Detection Score=M-Entropy, alpha (significance level)=0.2, K=162026.0552.3——
JECSModel=LLaMA-7B, Detection Score=M-Entropy, alpha (significance level)=0.1, K=162026.0551.6——
JECSModel=Pythia-6.9B, Detection Score=M-Entropy, alpha (significance level)=0.2, K=162026.0549.4——
JMCSModel=Pythia-6.9B, Detection Score=Min-K%++, alpha (significance level)=0.2, K=162026.0546.5——
JMCSModel=Pythia-6.9B, Detection Score=Perplexity, alpha (significance level)=0.3, K=162026.0546.4——
JMCSModel=Pythia-6.9B, Detection Score=Min-K%, alpha (significance level)=0.3, K=162026.0546——
JECSModel=Pythia-6.9B, Detection Score=Min-K%++, alpha (significance level)=0.1, K=162026.0544.7——
JMCSModel=NeoX-20B, Detection Score=Perplexity, alpha (significance level)=0.1, K=162026.0540.3——
JMCSModel=Pythia-6.9B, Detection Score=M-Entropy, alpha (significance level)=0.3, K=162026.0537——
JMCSModel=NeoX-20B, Detection Score=M-Entropy, alpha (significance level)=0.1, K=162026.0523.5——
JMCSModel=Pythia-6.9B, Detection Score=Perplexity, alpha (significance level)=0.2, K=162026.0514.9——
JMCSModel=Pythia-6.9B, Detection Score=Min-K%, alpha (significance level)=0.2, K=162026.0513.9——
JECSModel=Pythia-6.9B, Detection Score=Perplexity, alpha (significance level)=0.1, K=162026.0513——
JECSModel=Pythia-6.9B, Detection Score=Min-K%, alpha (significance level)=0.1, K=162026.0512.6——
JMCSModel=Pythia-6.9B, Detection Score=M-Entropy, alpha (significance level)=0.2, K=162026.059.5——
JMCSModel=Pythia-6.9B, Detection Score=Min-K%++, alpha (significance level)=0.1, K=162026.059.4——
JMCSModel=LLaMA-7B, Detection Score=Min-K%, alpha (significance level)=0.1, K=162026.055.5——
JMCSModel=LLaMA-7B, Detection Score=Perplexity, alpha (significance level)=0.1, K=162026.054——
JECSModel=Pythia-6.9B, Detection Score=M-Entropy, alpha (significance level)=0.1, K=162026.053.7——
JMCSModel=LLaMA-7B, Detection Score=M-Entropy, alpha (significance level)=0.1, K=162026.052.6——
JMCSModel=Pythia-6.9B, Detection Score=Perplexity, alpha (significance level)=0.1, K=162026.050.7——
JMCSModel=Pythia-6.9B, Detection Score=Min-K%, alpha (significance level)=0.1, K=162026.050.6——
JMCSModel=Pythia-6.9B, Detection Score=M-Entropy, alpha (significance level)=0.1, K=162026.050.4——
FSDTarget Model=Neo-2.7B2026.03—0.9165
FSDTarget Model=GPT-J-6b2026.03—0.9679
FSDTarget Model=OPT-6.7b2026.03—0.8963
FSDTarget Model=Pythia-6.9b2026.03—0.9566
FSDTarget Model=LLaMA-7B2026.03—0.9481
GDSTarget Model=Neo-2.7B2026.03—0.9473
GDSTarget Model=GPT-J-6b2026.03—0.9786
GDSTarget Model=OPT-6.7b2026.03—0.9475
GDSTarget Model=Pythia-6.9b2026.03—0.9583
GDSTarget Model=LLaMA-7B2026.03—0.9785
Min-kTarget Model=Neo-2.7B2026.03—0.6517
Min-kTarget Model=GPT-J-6b2026.03—0.6819
Min-kTarget Model=OPT-6.7b2026.03—0.6315
Min-kTarget Model=Pythia-6.9b2026.03—0.6719
Min-kTarget Model=LLaMA-7B2026.03—0.7218
Min-k++Target Model=Neo-2.7B2026.03—0.6715
Min-k++Target Model=GPT-J-6b2026.03—0.6919
Min-k++Target Model=OPT-6.7b2026.03—0.6510
Min-k++Target Model=Pythia-6.9b2026.03—0.717
Min-k++Target Model=LLaMA-7B2026.03—0.8322
PPLTarget Model=Neo-2.7B2026.03—0.6213
PPLTarget Model=GPT-J-6b2026.03—0.6413
PPLTarget Model=OPT-6.7b2026.03—0.612
PPLTarget Model=Pythia-6.9b2026.03—0.6313
PPLTarget Model=LLaMA-7B2026.03—0.714
ZLibTarget Model=Neo-2.7B2026.03—0.5810
ZLibTarget Model=GPT-J-6b2026.03—0.611
ZLibTarget Model=OPT-6.7b2026.03—0.589