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Frank Hutter

3 papers indexed

arxivcs.LGcs.AI2026-07-08

TimEE: End-to-end Time Series Classification via In-Context Learning

Jaris Küken, Shi Bin Hoo, Martin Mráz, Frank Hutter, Lennart Purucker

Time series classification (TSC) is dominated by a two-stage paradigm: train a feature encoder -- either from scratch on the target dataset or via pretraining on large corpora -- and then fit a task-specific classifier on top. While effective, this decoupling optimizes representa…

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arxivcs.LGcs.AI2026-06-29

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

Lennart Purucker, Andrej Tschalzev, Nick Erickson, Gioia Blayer, David Holzmüller, Alan Arazi, et al.

Foundation models for predictive machine learning on tabular data have recently gained significant traction in academia and industry. Research communities across disciplines are increasingly evaluating tabular foundation models on diverse datasets and tasks. However, these task-…

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arxivcs.LG2026-06-28

Towards Evaluating Data Priors for Tabular Foundation Models

Zeynep Türkmen, Kürşat Kaya, Alexander Pfefferle, Frank Hutter

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 as independent components, making it difficult to understand how much they affect downstream model b…

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