CausalMixFT Fine-Tuning for Tabular Foundation Model Generalization Under Data Scarcity

Fine-tuning tabular foundation models (TFMs) under data scarcity is challenging, as early stopping on even scarcer validation data often fails to capture true generalization performance. We propose CausalMixFT, a method that enhances fine-tuning robustness and downstream performance by generating structurally consistent synthetic samples using Structural Causal Models (SCMs) fitted on the target dataset. This approach augments limited real data with causally informed synthetic examples, preserving feature dependencies while expanding training diversity. Evaluated across 33 classification datas

Research goal: To what extent does CausalMixFT fine-tuning improve the generalization accuracy of tabular foundation models under data scarcity compared to standard augmentation methods on TabBench?

Autonomous synthesis report generated by Assignee Research. Tribunal consensus score: 7.9/10.