taxonomy_association
Taxonomy-peaked tags first
For each tag, measure the share of its training occurrences that land in its single most common taxonomy. Tags with the strongest one-taxonomy association are scored first.
One ordering change at a time, with the regressor held fixed.
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Rolling nightly benchmark compiled from the live operational runs. Best strategy in this bundle: taxonomy_association (0.288520 mean p-adic loss).
For these UMLLR ablations, Avg active params / classification is the mean number of active coefficients touched while classifying one product.
The ablation keeps the greedy p-adic regressor fixed and changes only the tag ordering heuristic used before coefficient fitting.
taxonomy_associationTaxonomy-peaked tags first
For each tag, measure the share of its training occurrences that land in its single most common taxonomy. Tags with the strongest one-taxonomy association are scored first.
frequencyMost common tags first
Ranks tags by how often they appear in the training products.
randomSeeded random control
Uses a seeded random shuffle of the training tag vocabulary as a control condition.
battle_eloPairwise battle ranking
Ranks tags by fold-local Elo scores estimated from tag battles, while excluding the holdout fold from the ranking fit.
mean_title_positionAverage title position
Ranks tags by their average recorded title position in the training products.

| Strategy | Mean p-adic loss | Δ vs battle_elo | Fold wins | Exact acc. | Prefix-2 acc. | Avg active params / classification |
|---|---|---|---|---|---|---|
| taxonomy_association | 0.288520 | -0.045872 | 5/5 | 48.50% | 62.81% | 1.10 |
| frequency | 0.329248 | -0.005143 | 5/5 | 42.62% | 58.81% | 1.90 |
| random | 0.330284 | -0.004107 | 19/25 | 42.35% | 57.75% | 1.41 |
| battle_elo | 0.334391 | 0.000000 | 0/5 | 42.99% | 58.21% | 1.41 |
| mean_title_position | 0.350360 | 0.015968 | 0/5 | 41.91% | 56.60% | 1.74 |