Sofian Chaybouti

I'm a PhD student at Tubingen AI Center, advised by Prof. Hilde Kuehne. I'm also participating in MIT-IBM Watson Sight and Sound Project.

Prior to this, I finished my Master of Engineering in Applied Mathematics at ENSTA Paris in France and my MVA Master (Mathematics, Vision and Learning) at ENS Paris-Saclay.

Before starting my PhD, I worked for 3 years in industry research teams: at Credit Agricole's Datalab in Montrouge, France, where I mostly focused on NLP and research engines, and at Huawei's Noah's Ark Lab in Paris, working on optimization and Reinforcement Learning.

Research Papers

My current research focuses on multimodal models, especially Video Understanding, Video-Language modeling, Efficient video representation and efficient Multimodal models.

REVEAL: Advancing Relationship-based Video Understanding for Video-Question-Answering

REVEAL: Advancing Relationship-based Video Understanding for Video-Question-Answering

Sofian Chaybouti, Walid Bousselham, Moritz Wolter, Hilde Kuehne

arXiv, 2025

MaskInversion: Localized Embeddings via Optimization of Explainability Maps

MaskInversion: Localized Embeddings via Optimization of Explainability Maps

Walid Bousselham, Sofian Chaybouti, Christian Rupprecht, Vittorio Ferrari, Hilde Kuehne

arXiv, 2024

LeGrad: An Explainability Method for Vision Transformers via Feature Formation Sensitivity

LeGrad: An Explainability Method for Vision Transformers via Feature Formation Sensitivity

Walid Bousselham, Angie Boggust, Sofian Chaybouti, Hendrik Strobelt, Hilde Kuehne

arXiv, 2024

Meta-learning of black-box solvers using deep reinforcement learning

Meta-learning of black-box solvers using deep reinforcement learning

Sofian Chaybouti, Ludovic Dos Santos, Cedric Malherbe, Aladin Virmaux

NeurIPS 2022, MetaLearn Workshop

EfficientQA: A RoBERTa Based Phrase-Indexed Question-Answering System

EfficientQA: A RoBERTa Based Phrase-Indexed Question-Answering System

Sofian Chaybouti, Achraf Saghe, Aymen Shabou

arXiv, 2021

MIX: a Multi-task Learning Approach to Solve Open-Domain Question Answering

MIX: a Multi-task Learning Approach to Solve Open-Domain Question Answering

Sofian Chaybouti, Achraf Saghe, Aymen Shabou

arXiv, 2020