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Deep Tabular Generators Rarely Beat the Trivial Baseline

A preregistered 2,220-run size ladder found no meaningful deep-model win in 23 of 24 dataset-model pairs.

Published Updated Story ID: mp-2026-10-05-026
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Summary

A preregistered 2,220-run size ladder found no meaningful deep-model win in 23 of 24 dataset-model pairs.

The benchmark compared seven generators across eight datasets subsampled from 200 to 20,000 rows, plus four naturally small clinical datasets. In 23 of 24 dataset-and-deep-model pairs, no deep model beat the best trivial baseline beyond seed noise at any measured size; baselines won 40 of 49 size cells. In 81 percent of cells, even the top-two gap was smaller than seed variation.

Why it matters

A preregistered 2,220-run size ladder found no meaningful deep-model win in 23 of 24 dataset-model pairs.

Limits and context

No additional limitation was separately recorded.

Key claims

  1. A preregistered 2,220-run size ladder found no meaningful deep-model win in 23 of 24 dataset-model pairs.

    Evidence: source-2026-10-05-015

Sources

  1. arXiv preprint 2610.03500arXiv · primary research

Corrections

No corrections have been recorded for this story.