activity
20212026
most citedThreat Model-Agnostic Adversarial Defense using Diffusion Models

14 citations · 41 across the 23 of their papers we have counts for

collaborators

23 papers

cs.AI2026

Adaptive Influence Graphs for Failure Attribution in Multi-Agent Systems

Yarden Bakish, Amir Dudai, Roy Ganz +4

Multi-agent LLM systems are increasingly deployed in real-world applications, where failures can be costly and difficult to localize. Despite growing efforts to automate failure at…

cs.AI2026

The Handoff Tax: Continuing Non-Native Trajectories in LLM Agents

Roy Ganz, Mor Shpigel Nacson, Adi Kalyanpur +1

Coding agents perform long-running tasks spanning dozens of model calls, tool uses, and code edits. As these runs unfold, users face a practical cost-quality trade-off: escalating…

cs.AI2026

DREAM: Deep Research Evaluation with Agentic Metrics

Elad Ben Avraham, Changhao Li, Ron Dorfman +8

Deep Research Agents generate analyst-grade reports, yet evaluating them remains challenging due to the absence of a single ground truth and the multidimensional nature of research…

cs.CV2026

DODO: Discrete OCR Diffusion Models

Sean Man, Gilad Deutch, Roy Ganz +4

Optical Character Recognition (OCR) is a fundamental task for digitizing information, serving as a critical bridge between visual data and textual understanding. While modern Visio…

cs.CV2024

DocVLM: Make Your VLM an Efficient Reader

Mor Shpigel Nacson, Aviad Aberdam, Roy Ganz +5

Vision-Language Models (VLMs) excel in diverse visual tasks but face challenges in document understanding, which requires fine-grained text processing. While typical visual tasks p…

cs.CV2024

TAP-VL: Text Layout-Aware Pre-training for Enriched Vision-Language Models

Jonathan Fhima, Elad Ben Avraham, Oren Nuriel +4

Vision-Language (VL) models have garnered considerable research interest; however, they still face challenges in effectively handling text within images. To address this limitation…

cs.CV2024

Text-to-Image Generation Via Energy-Based CLIP

Roy Ganz, Michael Elad

Joint Energy Models (JEMs), while drawing significant research attention, have not been successfully scaled to real-world, high-resolution datasets. We present CLIP-JEM, a novel ap…

cs.LG2024

Adversaries With Incentives: A Strategic Alternative to Adversarial Robustness

Maayan Ehrenberg, Roy Ganz, Nir Rosenfeld

Adversarial training aims to defend against adversaries: malicious opponents whose sole aim is to harm predictive performance in any way possible. This presents a rather harsh pers…

cs.CV2024

Enhancing Consistency-Based Image Generation via Adversarialy-Trained Classification and Energy-Based Discrimination

Shelly Golan, Roy Ganz, Michael Elad

The recently introduced Consistency models pose an efficient alternative to diffusion algorithms, enabling rapid and good quality image synthesis. These methods overcome the slowne…

cs.CV2024

Paint by Inpaint: Learning to Add Image Objects by Removing Them First

Navve Wasserman, Noam Rotstein, Roy Ganz +1

Image editing has advanced significantly with the introduction of text-conditioned diffusion models. Despite this progress, seamlessly adding objects to images based on textual ins…

cs.CV2024

Question Aware Vision Transformer for Multimodal Reasoning

Roy Ganz, Yair Kittenplon, Aviad Aberdam +4

Vision-Language (VL) models have gained significant research focus, enabling remarkable advances in multimodal reasoning. These architectures typically comprise a vision encoder, a…

cs.CL2024

GRAM: Global Reasoning for Multi-Page VQA

Tsachi Blau, Sharon Fogel, Roi Ronen +6

The increasing use of transformer-based large language models brings forward the challenge of processing long sequences. In document visual question answering (DocVQA), leading met…

cs.CV2023★ 2 cited

CLIPAG: Towards Generator-Free Text-to-Image Generation

Roy Ganz, Michael Elad

Perceptually Aligned Gradients (PAG) refer to an intriguing property observed in robust image classification models, wherein their input gradients align with human perception and p…

cs.CV2023

FuseCap: Leveraging Large Language Models for Enriched Fused Image Captions

Noam Rotstein, David Bensaid, Shaked Brody +2

The advent of vision-language pre-training techniques enhanced substantial progress in the development of models for image captioning. However, these models frequently produce gene…

cs.CV2023★ 2 cited

Class-Conditioned Transformation for Enhanced Robust Image Classification

Tsachi Blau, Roy Ganz, Chaim Baskin +2

Robust classification methods predominantly concentrate on algorithms that address a specific threat model, resulting in ineffective defenses against other threat models. Real-worl…

cs.CV2023

CLIPTER: Looking at the Bigger Picture in Scene Text Recognition

Aviad Aberdam, David Bensaïd, Alona Golts +5

Reading text in real-world scenarios often requires understanding the context surrounding it, especially when dealing with poor-quality text. However, current scene text recognizer…

cs.CV2023

Towards Models that Can See and Read

Roy Ganz, Oren Nuriel, Aviad Aberdam +3

Visual Question Answering (VQA) and Image Captioning (CAP), which are among the most popular vision-language tasks, have analogous scene-text versions that require reasoning from t…

cs.CV2022★ 10 cited

Enhancing Diffusion-Based Image Synthesis with Robust Classifier Guidance

Bahjat Kawar, Roy Ganz, Michael Elad

Denoising diffusion probabilistic models (DDPMs) are a recent family of generative models that achieve state-of-the-art results. In order to obtain class-conditional generation, it…

cs.CV2022★ 14 cited

Threat Model-Agnostic Adversarial Defense using Diffusion Models

Tsachi Blau, Roy Ganz, Bahjat Kawar +2

Deep Neural Networks (DNNs) are highly sensitive to imperceptible malicious perturbations, known as adversarial attacks. Following the discovery of this vulnerability in real-world…

cs.CV2022★ 3 cited

Do Perceptually Aligned Gradients Imply Adversarial Robustness?

Roy Ganz, Bahjat Kawar, Michael Elad

Adversarially robust classifiers possess a trait that non-robust models do not -- Perceptually Aligned Gradients (PAG). Their gradients with respect to the input align well with hu…

cs.CV2022★ 10 cited

Multimodal Semi-Supervised Learning for Text Recognition

Aviad Aberdam, Roy Ganz, Shai Mazor +1

Until recently, the number of public real-world text images was insufficient for training scene text recognizers. Therefore, most modern training methods rely on synthetic data and…

cs.CV2021

BIGRoC: Boosting Image Generation via a Robust Classifier

Roy Ganz, Michael Elad

The interest of the machine learning community in image synthesis has grown significantly in recent years, with the introduction of a wide range of deep generative models and means…

cs.CV2021

Improved Image Generation via Sparse Modeling

Roy Ganz, Michael Elad

The interest of the deep learning community in image synthesis has grown massively in recent years. Nowadays, deep generative methods, and especially Generative Adversarial Network…