activity
20242026
collaborators
Showing cs.LGShow all

5 papers · 1 filter

cs.LG2026

Beyond IID: How General Are Tabular Foundation Models, Really?

Lennart Purucker, Andrej Tschalzev, Nick Erickson +7

Foundation models for predictive machine learning on tabular data have recently gained significant traction in academia and industry. Research communities across disciplines are in…

cs.LG2026

Towards Evaluating Data Priors for Tabular Foundation Models

Zeynep Türkmen, Kürşat Kaya, Alexander Pfefferle +1

Data-generating priors are a central component of tabular foundation models because they define the task distribution used during pretraining. However, priors are rarely evaluated…

cs.LG2026

Towards Pretraining Text Encoders for TabPFN

Mustafa Tajjar, Alexander Pfefferle, Lennart Purucker +1

Tabular foundation models, such as TabPFN, achieve strong performance on tabular datasets with numerical and categorical data, but do not natively handle high-cardinality text feat…

cs.LG2026

Speedrunning Tabular Foundation Model Pretraining

Salih Bora Ozturk, Alexander Pfefferle, Frank Hutter

Pretraining cost is a major bottleneck for research on tabular foundation models, slowing the iteration cycle for new architectures, priors, and optimization ideas. Yet the communi…

cs.LG2025

nanoTabPFN: A Lightweight and Educational Reimplementation of TabPFN

Alexander Pfefferle, Johannes Hog, Lennart Purucker +1

Tabular foundation models such as TabPFN have revolutionized predictive machine learning for tabular data. At the same time, the driving factors of this revolution are hard to unde…