activity
20202026
most citedGeometric Deep Learning: Grids, Groups, Graphs, Geodesics, and Gauges

570 citations · 868 across the 31 of their papers we have counts for

collaborators

32 papers

cs.CL2026★ 3 cited

Gemma 4 Technical Report

Gemma Team, Sherif El Abd, Vaibhav Aggarwal +320

We introduce Gemma 4, a new generation of open-weight, natively multimodal language models in the Gemma model family. Designed to advance compute efficiency and reasoning, the Gemm…

cs.CL2026

Understanding Performance Gap Between Parallel and Sequential Sampling in Large Reasoning Models

Xiangming Gu, Soham De, Larisa Markeeva +2

Large Reasoning Models (LRMs) have shown remarkable performance on challenging questions, such as math and coding. However, to obtain a high quality solution, one may need to sampl…

cs.CL2026

The Illusion of Stochasticity in LLMs

Xiangming Gu, Soham De, Michalis Titsias +3

In this work, we demonstrate that reliable stochastic sampling is a fundamental yet unfulfilled requirement for Large Language Models (LLMs) operating as agents. Agentic systems ar…

cs.LG2026

Mining Generalizable Activation Functions

Alex Vitvitskyi, Michael Boratko, Matej Grcic +3

The choice of activation function is an active area of research, with different proposals aimed at improving optimization, while maintaining expressivity. Additionally, the activat…

cs.LG2026

Perplexity Cannot Always Tell Right from Wrong

Petar Veličković, Federico Barbero, Christos Perivolaropoulos +2

Perplexity -- a function measuring a model's overall level of "surprise" when encountering a particular output -- has gained significant traction in recent years, both as a loss fu…

cs.LG2025

Rotary Position Encodings for Graphs

Isaac Reid, Arijit Sehanobish, Cederik Höfs +7

We study the extent to which rotary position encodings (RoPE), a recent transformer position encoding algorithm broadly adopted in large language models (LLMs) and vision transform…

cs.AI2025

KNARsack: Teaching Neural Algorithmic Reasoners to Solve Pseudo-Polynomial Problems

Stjepan Požgaj, Dobrik Georgiev, Marin Šilić +1

Neural algorithmic reasoning (NAR) is a growing field that aims to embed algorithmic logic into neural networks by imitating classical algorithms. In this extended abstract, we det…

cs.AI2024★ 2 cited

Mastering Board Games by External and Internal Planning with Language Models

John Schultz, Jakub Adamek, Matej Jusup +13

Advancing planning and reasoning capabilities of Large Language Models (LLMs) is one of the key prerequisites towards unlocking their potential for performing reliably in complex a…

cs.CL2024

Round and Round We Go! What makes Rotary Positional Encodings useful?

Federico Barbero, Alex Vitvitskyi, Christos Perivolaropoulos +2

Positional Encodings (PEs) are a critical component of Transformer-based Large Language Models (LLMs), providing the attention mechanism with important sequence-position informatio…

cs.LG2024

Positional Attention: Expressivity and Learnability of Algorithmic Computation

Artur Back de Luca, George Giapitzakis, Shenghao Yang +2

There is a growing interest in the ability of neural networks to execute algorithmic tasks (e.g., arithmetic, summary statistics, and sorting). The goal of this work is to better u…

cs.LG2024★ 1 cited

Softmax is not Enough (for Sharp Size Generalisation)

Petar Veličković, Christos Perivolaropoulos, Federico Barbero +1

A key property of reasoning systems is the ability to make sharp decisions on their input data. For contemporary AI systems, a key carrier of sharp behaviour is the softmax functio…

cs.CL2024★ 3 cited

Transformers meet Neural Algorithmic Reasoners

Wilfried Bounsi, Borja Ibarz, Andrew Dudzik +5

Transformers have revolutionized machine learning with their simple yet effective architecture. Pre-training Transformers on massive text datasets from the Internet has led to unma…

cs.LG2024

The CLRS-Text Algorithmic Reasoning Language Benchmark

Larisa Markeeva, Sean McLeish, Borja Ibarz +7

Eliciting reasoning capabilities from language models (LMs) is a critical direction on the path towards building intelligent systems. Most recent studies dedicated to reasoning foc…

cs.CL2024★ 1 cited

Transformers need glasses! Information over-squashing in language tasks

Federico Barbero, Andrea Banino, Steven Kapturowski +5

We study how information propagates in decoder-only Transformers, which are the architectural backbone of most existing frontier large language models (LLMs). We rely on a theoreti…

cs.AI2023

Finding Increasingly Large Extremal Graphs with AlphaZero and Tabu Search

Abbas Mehrabian, Ankit Anand, Hyunjik Kim +16

This work studies a central extremal graph theory problem inspired by a 1975 conjecture of Erdős, which aims to find graphs with a given size (number of nodes) that maximize the nu…

cs.LG2023

Neural Priority Queues for Graph Neural Networks

Rishabh Jain, Petar Veličković, Pietro Liò

Graph Neural Networks (GNNs) have shown considerable success in neural algorithmic reasoning. Many traditional algorithms make use of an explicit memory in the form of a data struc…

cs.LG2023★ 1 cited

Asynchronous Algorithmic Alignment with Cocycles

Andrew Dudzik, Tamara von Glehn, Razvan Pascanu +1

State-of-the-art neural algorithmic reasoners make use of message passing in graph neural networks (GNNs). But typical GNNs blur the distinction between the definition and invocati…

cs.LG2023★ 5 cited

How does over-squashing affect the power of GNNs?

Francesco Di Giovanni, T. Konstantin Rusch, Michael M. Bronstein +4

Graph Neural Networks (GNNs) are the state-of-the-art model for machine learning on graph-structured data. The most popular class of GNNs operate by exchanging information between…

cs.LG2023★ 2 cited

Neural Algorithmic Reasoning with Causal Regularisation

Beatrice Bevilacqua, Kyriacos Nikiforou, Borja Ibarz +5

Recent work on neural algorithmic reasoning has investigated the reasoning capabilities of neural networks, effectively demonstrating they can learn to execute classical algorithms…

cs.LG2023★ 1 cited

Learning Graph Search Heuristics

Michal Pándy, Weikang Qiu, Gabriele Corso +4

Searching for a path between two nodes in a graph is one of the most well-studied and fundamental problems in computer science. In numerous domains such as robotics, AI, or biology…

cs.LG2022★ 4 cited

Continuous Neural Algorithmic Planners

Yu He, Petar Veličković, Pietro Liò +1

Neural algorithmic reasoning studies the problem of learning algorithms with neural networks, especially with graph architectures. A recent proposal, XLVIN, reaps the benefits of u…

cs.LG2021

Neural Algorithmic Reasoners are Implicit Planners

Andreea Deac, Petar Veličković, Ognjen Milinković +3

Implicit planning has emerged as an elegant technique for combining learned models of the world with end-to-end model-free reinforcement learning. We study the class of implicit pl…

q-bio.QM2021

Neural Distance Embeddings for Biological Sequences

Gabriele Corso, Rex Ying, Michal Pándy +3

The development of data-dependent heuristics and representations for biological sequences that reflect their evolutionary distance is critical for large-scale biological research.…

cs.LG2021★ 209 cited

ETA Prediction with Graph Neural Networks in Google Maps

Austin Derrow-Pinion, Jennifer She, David Wong +14

Travel-time prediction constitutes a task of high importance in transportation networks, with web mapping services like Google Maps regularly serving vast quantities of travel time…