activity
20222026
most citedVladVA: Discriminative Fine-tuning of LVLMs

2 citations · 3 across the 13 of their papers we have counts for

collaborators

13 papers

cs.CV2026

Hierarchical Image Tokenization for Multi-Scale Image Super Resolution

Isma Hadji, Enrique Sanchez, Adrian Bulat +2

We introduce a multi-scale Image Super Resolution (ISR) method building on recent advances in Visual Auto-Regressive (VAR) modeling. VAR models break image tokenization into additi…

cs.CV2026

Restore, Assess, Repeat: A Unified Framework for Iterative Image Restoration

I-Hsiang Chen, Isma Hadji, Enrique Sanchez +5

Image restoration aims to recover high quality images from inputs degraded by various factors, such as adverse weather, blur, or low light. While recent studies have shown remarkab…

cs.CV2026

No Hard Negatives Required: Concept Centric Learning Leads to Compositionality without Degrading Zero-shot Capabilities of Contrastive Models

Hai X. Pham, David T. Hoffmann, Ricardo Guerrero +1

Contrastive vision-language (V&L) models remain a popular choice for various applications. However, several limitations have emerged, most notably the limited ability of V&L models…

cs.CV2026

More Images, More Problems? A Controlled Analysis of VLM Failure Modes

Anurag Das, Adrian Bulat, Alberto Baldrati +4

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities, yet their proficiency in understanding and reasoning over multiple images remains largely unexplored…

cs.CV2025

Multi-scale Image Super Resolution with a Single Auto-Regressive Model

Enrique Sanchez, Isma Hadji, Adrian Bulat +3

In this paper we tackle Image Super Resolution (ISR), using recent advances in Visual Auto-Regressive (VAR) modeling. VAR iteratively estimates the residual in latent space between…

cs.CV2024

Edge-SD-SR: Low Latency and Parameter Efficient On-device Super-Resolution with Stable Diffusion via Bidirectional Conditioning

Mehdi Noroozi, Isma Hadji, Victor Escorcia +3

There has been immense progress recently in the visual quality of Stable Diffusion-based Super Resolution (SD-SR). However, deploying large diffusion models on computationally rest…

cs.CV2024★ 2 cited

VladVA: Discriminative Fine-tuning of LVLMs

Yassine Ouali, Adrian Bulat, Alexandros Xenos +4

Contrastively-trained Vision-Language Models (VLMs) like CLIP have become the de facto approach for discriminative vision-language representation learning. However, these models ha…

cs.CV2024

FAM Diffusion: Frequency and Attention Modulation for High-Resolution Image Generation with Stable Diffusion

Haosen Yang, Adrian Bulat, Isma Hadji +4

Diffusion models are proficient at generating high-quality images. They are however effective only when operating at the resolution used during training. Inference at a scaled reso…

cs.CV2024

CLIP-DPO: Vision-Language Models as a Source of Preference for Fixing Hallucinations in LVLMs

Yassine Ouali, Adrian Bulat, Brais Martinez +1

Despite recent successes, LVLMs or Large Vision Language Models are prone to hallucinating details like objects and their properties or relations, limiting their real-world deploym…

cs.CL2024

MobileQuant: Mobile-friendly Quantization for On-device Language Models

Fuwen Tan, Royson Lee, Łukasz Dudziak +5

Large language models (LLMs) have revolutionized language processing, delivering outstanding results across multiple applications. However, deploying LLMs on edge devices poses sev…

cs.CV2024

You Only Need One Step: Fast Super-Resolution with Stable Diffusion via Scale Distillation

Mehdi Noroozi, Isma Hadji, Brais Martinez +2

In this paper, we introduce YONOS-SR, a novel stable diffusion-based approach for image super-resolution that yields state-of-the-art results using only a single DDIM step. We prop…

cs.CL2024

Graph Guided Question Answer Generation for Procedural Question-Answering

Hai X. Pham, Isma Hadji, Xinnuo Xu +6

In this paper, we focus on task-specific question answering (QA). To this end, we introduce a method for generating exhaustive and high-quality training data, which allows us to tr…

cs.CV2022★ 1 cited

Graph2Vid: Flow graph to Video Grounding for Weakly-supervised Multi-Step Localization

Nikita Dvornik, Isma Hadji, Hai Pham +4

In this work, we consider the problem of weakly-supervised multi-step localization in instructional videos. An established approach to this problem is to rely on a given list of st…