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Off-Policy Evaluation on KuaiRec slate experiments

0.617Downstream OPE RMSEFF-DR
0.149683.304096.45859.61291May 28, 2026

Evaluation results

MethodLinks
FF-DRK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.050.617—
FF-DRK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.050.949—
FF-DRK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.051.08—
FF-OISK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.051.27—
DRK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.051.66—
FF-OISK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.051.75—
DRK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.052.02—
FF-OISK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.052.19—
OISK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.053.36—
DRK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.057.81—
OISK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.0511.46—
OISK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.0512.3—
Forward-DPK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.05—0.36
Forward-DPK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.05—2.93
Forward-DPK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.05—8.94
Gumbel-MCK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.05—26.9
Gumbel-MCK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.05—29.6
Gumbel-MCK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.05—105
K! enumK (slate size)=4, Pool size (M)=15, (M choose K)=1,3652026.05—6.2
K! enumK (slate size)=6, Pool size (M)=15, (M choose K)=5,0052026.05—1,010
K! enumK (slate size)=8, Pool size (M)=15, (M choose K)=6,4352026.05—97,108