ULR Fold 1

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Fold metrics

MetricValue
Test accuracy55.79%
Test F1 score0.5932
Hierarchical loss0.91377321
P-adic loss (total)295.49949442
P-adic loss (mean)0.30813295
Prime base79
Number of tags (input features)6,936
Non-zero parameters2,651 / 2,407,139 (99.9% sparse)
L1 regularization (C)1.0000
Training samples3,621
Test samples959

P-adic loss breakdown

AgreementCountShareCost per mistakeTotal contribution
Exact match53956.20%0.0000000.000000
p^550.52%0.0000000.000000
p^4181.88%0.0000000.000000
p^3272.82%0.0000020.000055
p^2363.75%0.0001600.005768
p^1394.07%0.0126580.493671
p^029530.76%1.000000295.000000

About L1 regularization

L1 (Lasso) regularization promotes sparsity by driving many coefficients to exactly zero. This model uses ALL available tags (6,936) but L1 regularization selects which features are actually used. The number of non-zero parameters (2,651) indicates how many coefficients the model actually uses.