activity
20242026
collaborators

6 papers

cs.LG2026

Learning State-Tracking from Code Using Linear RNNs

Julien Siems, Riccardo Grazzi, Korbinian Pöppel +3

Over the last years, state-tracking tasks, particularly permutation composition, have become a testbed to understand the limits of sequence models architectures like Transformers a…

cs.LG2026

TempoPFN: Synthetic Pre-training of Linear RNNs for Zero-shot Time Series Forecasting

Vladyslav Moroshan, Julien Siems, Arber Zela +2

Foundation models for zero-shot time series forecasting face challenges in efficient long-horizon prediction and reproducibility, with existing synthetic-only approaches underperfo…

cs.LG2026

GAMformer: Bridging Tabular Foundation Models and Interpretable Machine Learning

Andreas Mueller, Julien Siems, Harsha Nori +4

While interpretability is crucial for machine learning applications in safety-critical domains and for regulatory compliance, existing tabular foundation models like TabPFN lack tr…

cs.LG2025

DeltaProduct: Improving State-Tracking in Linear RNNs via Householder Products

Julien Siems, Timur Carstensen, Arber Zela +3

Linear Recurrent Neural Networks (linear RNNs) have emerged as competitive alternatives to Transformers for sequence modeling, offering efficient training and linear-time inference…

cs.LG2025

Unlocking State-Tracking in Linear RNNs Through Negative Eigenvalues

Riccardo Grazzi, Julien Siems, Arber Zela +3

Linear Recurrent Neural Networks (LRNNs) such as Mamba, RWKV, GLA, mLSTM, and DeltaNet have emerged as efficient alternatives to Transformers for long sequences. However, both Tran…

cs.LG2024

Mamba4Cast: Efficient Zero-Shot Time Series Forecasting with State Space Models

Sathya Kamesh Bhethanabhotla, Omar Swelam, Julien Siems +2

This paper introduces Mamba4Cast, a zero-shot foundation model for time series forecasting. Based on the Mamba architecture and inspired by Prior-data Fitted Networks (PFNs), Mamba…