activity
20232026
most citedDeep Natural Language Feature Learning for Interpretable Prediction

4 citations · 4 across the 6 of their papers we have counts for

collaborators

7 papers

cs.AI2026

Transformer Heads Looking for Order

Jasper van Doornmalen, Alexander Kozachinskiy, Corinna Mathwieser +4

In this note, we show that the problem of checking, whether a sequence of bits is ordered, is not doable by 1-head 1-layer transformers but is doable by a 2-head 1-layer transforme…

cs.LG2026

Indexing: the Beginning and the End

Alexander Kozachinskiy, Vicente Opazo, Felipe Urrutia

We study information bottlenecks in modern deep-learning architectures -- RNNs, softmax transformers, linear-attention transformers and state-space models -- through the lens of th…

cs.LG2025

Decoupling Positional and Symbolic Attention Behavior in Transformers

Felipe Urrutia, Jorge Salas, Alexander Kozachinskiy +3

An important aspect subtending language understanding and production is the ability to independently encode positional and symbolic information of the words within a sentence. In T…

cs.LG2025

Continuity and Isolation Lead to Doubts or Dilemmas in Large Language Models

Hector Pasten, Felipe Urrutia, Hector Jimenez +3

Understanding how Transformers work and how they process information is key to the theoretical and empirical advancement of these machines. In this work, we demonstrate the existen…

cs.LG2025

Zero-Shot Decision Tree Construction via Large Language Models

Lucas Carrasco, Felipe Urrutia, Andrés Abeliuk

This paper introduces a novel algorithm for constructing decision trees using large language models (LLMs) in a zero-shot manner based on Classification and Regression Trees (CART)…

cs.LG2025

Strassen Attention, Split VC Dimension and Compositionality in Transformers

Alexander Kozachinskiy, Felipe Urrutia, Hector Jimenez +6

We propose the first method to show theoretical limitations for one-layer softmax transformers with arbitrarily many precision bits (even infinite). We establish those limitations…

cs.CL2023★ 4 cited

Deep Natural Language Feature Learning for Interpretable Prediction

Felipe Urrutia, Cristian Buc, Valentin Barriere

We propose a general method to break down a main complex task into a set of intermediary easier sub-tasks, which are formulated in natural language as binary questions related to t…