activity
20232026
most citedGuarantees of a Preconditioned Subgradient Algorithm for Overparameterized Asymmetric Low-rank Matrix Recovery

1 citations · 1 across the 9 of their papers we have counts for

collaborators

10 papers

cs.CL2026

Muse Glimmer 30B: An On-Device Agentic Model

Arash Ebrahim Abtahizadeh, Muna Aghamelu, Adil Ahmed +327

We introduce Muse Glimmer, an open-source 30B parameter causal language model with perception encoder, purpose-built for autonomous agentic tasks on consumer hardware. Muse Glimmer…

cs.AI2026

AI Research Preference Models

Thomas Simon Foster, Bassel Al Omari, Tingchen Fu +30

AI research agents (AIRA) can now carry machine learning experiments from proposal through implementation and evaluation. Yet progress on frontier tasks is throttled by the cost of…

cs.LG2026

Generalised Transportability via Causal Abstractions

Yorgos Felekis, Paris Giampouras, Fabio Massimo Zennaro +1

Transporting a causal conclusion from a source study population to a target one is a fundamental problem in causal inference. The theory of transportability provides a criterion fo…

cs.CV2025

Align & Invert: Solving Inverse Problems with Diffusion and Flow-based Models via Representation Alignment

Loukas Sfountouris, Giannis Daras, Paris Giampouras

Enforcing alignment between the internal representations of diffusion or flow-based generative models and those of pretrained self-supervised encoders has recently been shown to pr…

cs.LG2025

Distributionally Robust Causal Abstractions

Yorgos Felekis, Theodoros Damoulas, Paris Giampouras

Causal Abstraction (CA) theory provides a principled framework for relating causal models that describe the same system at different levels of granularity while ensuring interventi…

math.ST2025

Rates of Convergence of Generalised Variational Inference Posteriors under Prior Misspecification

Terje Mildner, Paris Giampouras, Theodoros Damoulas

We prove rates of convergence and robustness to prior misspecification within a Generalised Variational Inference (GVI) framework with bounded divergences. This addresses a signifi…

cs.LG2025

DES-LOC: Desynced Low Communication Adaptive Optimizers for Training Foundation Models

Alex Iacob, Lorenzo Sani, Mher Safaryan +8

Scaling foundation model training with Distributed Data Parallel (DDP) methods is bandwidth-limited. Existing infrequent communication methods like Local SGD were designed to synch…

cs.LG2025

Federated Generalised Variational Inference: A Robust Probabilistic Federated Learning Framework

Terje Mildner, Oliver Hamelijnck, Paris Giampouras +1

We introduce FedGVI, a probabilistic Federated Learning (FL) framework that is robust to both prior and likelihood misspecification. FedGVI addresses limitations in both frequentis…

math.OC2024★ 1 cited

Guarantees of a Preconditioned Subgradient Algorithm for Overparameterized Asymmetric Low-rank Matrix Recovery

Paris Giampouras, HanQin Cai, Rene Vidal

In this paper, we focus on a matrix factorization-based approach to recover low-rank {\it asymmetric} matrices from corrupted measurements. We propose an {\it Overparameterized Pre…

cs.LG2023

Clustering-based Domain-Incremental Learning

Christiaan Lamers, Rene Vidal, Nabil Belbachir +3

We consider the problem of learning multiple tasks in a continual learning setting in which data from different tasks is presented to the learner in a streaming fashion. A key chal…