activity
20132026
most citedPhase retrieval for imaging problems

16 citations · 35 across the 8 of their papers we have counts for

collaborators

8 papers

cs.CL2026

Where Does the Signal Live? A Web Data Recipe for Medical Encoder Pretraining

Bofeng Huang, Jacques Sun, Diane Bouchacourt +2

Web data curation has been widely studied for decoder Large Language Model (LLM) pretraining. Encoders for dense-terminology domains such as medicine, by contrast, are pretrained o…

cs.CV2025

SERA-H: Super-Resolution of Sentinel Time Series for Fine-Scale Canopy Height Mapping

Thomas Boudras, Martin Schwartz, Rasmus Fensholt +6

High-resolution mapping of canopy height is essential for forest management and biodiversity monitoring. Although recent studies have led to the advent of deep learning methods usi…

cs.CV2025

FORMSpoT: Revealing Fine-Scale Forest Disturbances from Nation-Wide 1.5 m Forest Canopy Height Time Series

Martin Schwartz, Fajwel Fogel, Nikola Besic +9

Current large-scale satellite-based forest disturbance monitoring systems operate at 10-30~m resolution, too coarse to detect changes at the scale of individual trees and resulting…

cs.CV2024★ 2 cited

Open-Canopy: Towards Very High Resolution Forest Monitoring

Fajwel Fogel, Yohann Perron, Nikola Besic +8

Estimating canopy height and its changes at meter resolution from satellite imagery is a significant challenge in computer vision with critical environmental applications. However,…

cs.LG2015

Learning with Clustering Structure

Vincent Roulet, Fajwel Fogel, Alexandre d'Aspremont +1

We study supervised learning problems using clustering constraints to impose structure on either features or samples, seeking to help both prediction and interpretation. The proble…

cs.LG2014★ 2 cited

Spectral Ranking using Seriation

Fajwel Fogel, Alexandre d'Aspremont, Milan Vojnovic

We describe a seriation algorithm for ranking a set of items given pairwise comparisons between these items. Intuitively, the algorithm assigns similar rankings to items that compa…

math.OC2013★ 15 cited

Convex Relaxations for Permutation Problems

Fajwel Fogel, Rodolphe Jenatton, Francis Bach +1

Seriation seeks to reconstruct a linear order between variables using unsorted, pairwise similarity information. It has direct applications in archeology and shotgun gene sequencin…

math.OC2013★ 16 cited

Phase retrieval for imaging problems

Fajwel Fogel, Irène Waldspurger, Alexandre d'Aspremont

We study convex relaxation algorithms for phase retrieval on imaging problems. We show that structural assumptions on the signal and the observations, such as sparsity, smoothness…