activity
20182026
most citedSolving Quantitative Reasoning Problems with Language Models

281 citations · 451 across the 25 of their papers we have counts for

collaborators

30 papers

cs.CL2026

Scaling Laws for Multimodal Data Mixtures

Aditi Khandelwal, Ayush K. Tarun, Yixuan Xu +5

Frontier AI systems are increasingly natively multimodal, jointly pretrained on multiple modalities, such as text, vision, and audio. However, the scientific understanding of the m…

cs.LG2026

Learning What to Imitate: Entropy-Aware Distribution Mixing

Juan Garcia Giraldo, Matteo Santelmo, Eduard Durech +3

Small language models are often post-trained as students on reasoning traces from stronger teacher models to efficiently learn new skills. However, token-level imitation on traces…

cs.LG2026

Adapting Linear-Time Architectures for Tabular In-Context Learning

David Schnurr, Felix Sarnthein, Thomas Hofmann +1

Tabular foundation models achieve strong performance by conditioning on labelled examples in context, but softmax attention limits their use on large datasets. Existing linear-time…

cs.LG2026

Linear Attention Architectures: Mechanisms, Trade-offs, and Cross-Layer Routing

Tommaso Cerruti, Tim Rieder, George Rowlands +2

Self-attention lets each token retrieve information from the full context, but its quadratic cost in sequence length limits training and inference at long context. This paper prese…

cs.AI2026

POLAR-Bench: A Diagnostic Benchmark for Privacy-Utility Trade-offs in LLM Agents

Qiaoyuan Zheng, Yiqu Yang, Qi Gao +1

LLM agents increasingly have access to private user data and act on the user's behalf when interacting with third-party systems. The user defines what may and must not be shared, a…

cs.LG2026

SFT-then-RL Outperforms Mixed-Policy Methods for LLM Reasoning

Alexis Limozin, Eduard Durech, Torsten Hoefler +2

Recent mixed-policy optimization methods for LLM reasoning that interleave or blend supervised and reinforcement learning signals report improvements over the standard SFT-then-RL…

cs.DC2026

An Engineering Journey Training Large Language Models at Scale on Alps: The Apertus Experience

Jonathan Coles, Stefano Schuppli, Lukas Drescher +20

Large Language Models (LLMs) have surged as a transformative technology for science and society, prompting governments worldwide to pursue sovereign AI capabilities that ensure dat…

cs.CL2026

Benchmarking Concept-Spilling Across Languages in LLMs

Ilia Badanin, Daniil Dzenhaliou, Imanol Schlag

Multilingual Large Language Models (LLMs) exhibit remarkable cross-lingual abilities, yet often exhibit a systematic bias toward the representations from other languages, resulting…

cs.CL2025

Apertus: Democratizing Open and Compliant LLMs for Global Language Environments

Project Apertus, Alejandro Hernández-Cano, Alexander Hägele +100

We present Apertus, a fully open suite of large language models (LLMs) designed to address two systemic shortcomings in today's open model ecosystem: data compliance and multilingu…

cs.CL2025

Positional Fragility in LLMs: How Offset Effects Reshape Our Understanding of Memorization Risks

Yixuan Xu, Antoni-Joan Solergibert i Llaquet, Antoine Bosselut +1

Large language models are known to memorize parts of their training data, posing risk of copyright violations. To systematically examine this risk, we pretrain language models (1B/…

cs.LG2025

Towards Fully FP8 GEMM LLM Training at Scale

Alejandro Hernández-Cano, Dhia Garbaya, Imanol Schlag +1

Despite the significant potential of FP8 data formats for large language model (LLM) pre-training, their adoption has been limited due to challenges in maintaining stability at sca…

cs.CL2025★ 1 cited

Can Performant LLMs Be Ethical? Quantifying the Impact of Web Crawling Opt-Outs

Dongyang Fan, Vinko Sabolčec, Matin Ansaripour +4

The increasing adoption of web crawling opt-outs by copyright holders of online content raises critical questions about the impact of data compliance on large language model (LLM)…

cs.CL2024★ 4 cited

INCLUDE: Evaluating Multilingual Language Understanding with Regional Knowledge

Angelika Romanou, Negar Foroutan, Anna Sotnikova +56

The performance differential of large language models (LLM) between languages hinders their effective deployment in many regions, inhibiting the potential economic and societal val…

cs.LG2024

Deriving Activation Functions Using Integration

Allen Hao Huang, Imanol Schlag

Our work proposes a novel approach to designing activation functions by focusing on their gradients and deriving the corresponding activation functions using integration. We introd…

cs.LG2024★ 2 cited

Understanding and Minimising Outlier Features in Neural Network Training

Bobby He, Lorenzo Noci, Daniele Paliotta +2

Outlier Features (OFs) are neurons whose activation magnitudes significantly exceed the average over a neural network's (NN) width. They are well known to emerge during standard tr…

cs.CL2024

The Role of Language Imbalance in Cross-lingual Generalisation: Insights from Cloned Language Experiments

Anton Schäfer, Shauli Ravfogel, Thomas Hofmann +2

Multilinguality is crucial for extending recent advancements in language modelling to diverse linguistic communities. To maintain high performance while representing multiple langu…

cs.CL2024

On the Effect of (Near) Duplicate Subwords in Language Modelling

Anton Schäfer, Thomas Hofmann, Imanol Schlag +1

Tokenisation is a core part of language models (LMs). It involves splitting a character sequence into subwords which are assigned arbitrary indices before being served to the LM. W…

cs.LG2023★ 4 cited

Navigating Scaling Laws: Compute Optimality in Adaptive Model Training

Sotiris Anagnostidis, Gregor Bachmann, Imanol Schlag +1

In recent years, the state-of-the-art in deep learning has been dominated by very large models that have been pre-trained on vast amounts of data. The paradigm is very simple: inve…

cs.LG2023★ 2 cited

The Languini Kitchen: Enabling Language Modelling Research at Different Scales of Compute

Aleksandar Stanić, Dylan Ashley, Oleg Serikov +5

The Languini Kitchen serves as both a research collective and codebase designed to empower researchers with limited computational resources to contribute meaningfully to the field…

cs.LG2023★ 5 cited

Large Language Model Programs

Imanol Schlag, Sainbayar Sukhbaatar, Asli Celikyilmaz +4

In recent years, large pre-trained language models (LLMs) have demonstrated the ability to follow instructions and perform novel tasks from a few examples. The possibility to param…

cs.AI2023★ 8 cited

Mindstorms in Natural Language-Based Societies of Mind

Mingchen Zhuge, Haozhe Liu, Francesco Faccio +23

Both Minsky's "society of mind" and Schmidhuber's "learning to think" inspire diverse societies of large multimodal neural networks (NNs) that solve problems by interviewing each o…

cs.CL2022★ 281 cited

Solving Quantitative Reasoning Problems with Language Models

Aitor Lewkowycz, Anders Andreassen, David Dohan +11

Language models have achieved remarkable performance on a wide range of tasks that require natural language understanding. Nevertheless, state-of-the-art models have generally stru…

cs.LG2022★ 28 cited

Block-Recurrent Transformers

DeLesley Hutchins, Imanol Schlag, Yuhuai Wu +2

We introduce the Block-Recurrent Transformer, which applies a transformer layer in a recurrent fashion along a sequence, and has linear complexity with respect to sequence length.…

cs.LG2022★ 15 cited

A Modern Self-Referential Weight Matrix That Learns to Modify Itself

Kazuki Irie, Imanol Schlag, Róbert Csordás +1

The weight matrix (WM) of a neural network (NN) is its program. The programs of many traditional NNs are learned through gradient descent in some error function, then remain fixed.…