CORTEXA
← Browse

Lennart Purucker

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…

View free PDFSource page
arxivcs.LGcs.AI2026-07-01

LLM-Guided ODE Discovery and Parameter Inference from Small-Cohort Aggregate Data

Hanning Yang, Meropi Karakioulaki, Lennart Purucker, Tim Litwin, Cristina Has, Moritz Hess

Mechanistic modeling via ordinary differential equations (ODEs) provides interpretable descriptions of complex dynamics and enables inference of underlying mechanisms, which is particularly valuable in clinical settings. However, in rare diseases, both the structure and parameter…

View free PDFSource page
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-…

View free PDFSource page