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Junxiao Wang

9 accepted papers

2026

FedCART: Tackling Long-Tailed Distributions in Federated Adversarial Training via Classifier Refinement

CVPR 2026

Growing privacy and security demands in the real world have spurred interest in adversarially robust Federated Learning (FL). While Adversarial Training (AT) is a well-established defense in centralized learning, its extension to the federated setting, known as Federated Adversarial Training (FAT),

Cited by 0SourceScholar
2025

Conversational Education at Scale: A Multi-LLM Agent Workflow for Procedural Learning and Pedagogic Quality Assessment

EMNLP 2025

Large language models (LLMs) have advanced virtual educators and learners, bridging NLP with AI4Education. Existing work often lacks scalability and fails to leverage diverse, large-scale course content, with limited frameworks for assessing pedagogic quality. To this end, we propose WikiHowAgent, a

2025

Private Training Large-scale Models with Efficient DP-SGD

NeurIPS 2025poster

As large language models (LLMs) increasingly underpin technological advancements, the privacy of their training data emerges as a critical concern. Differential Privacy (DP) serves as a rigorous mechanism to protect this data, yet its integration via Differentially Private Stochastic Gradient Descen…

Cited by 0SourcecodeScholar
2024

Autonomous Workflow for Multimodal Fine-Grained Training Assistants Towards Mixed Reality

ACL 2024findings

Autonomous artificial intelligence (AI) agents have emerged as promising protocols for automatically understanding the language-based environment, particularly with the exponential development of large language models (LLMs). However, a fine-grained, comprehensive understanding of multimodal environ…

2024

Faithful Vision-Language Interpretation via Concept Bottleneck Models

ICLR 2024poster

The demand for transparency in healthcare and finance has led to interpretable machine learning (IML) models, notably the concept bottleneck models (CBMs), valued for their potential in performance and insights into deep neural networks. However, CBM's reliance on manually annotated data poses chall…

Cited by 35SourcePDFScholar
2024

Towards Safe Concept Transfer of Multi-Modal Diffusion via Causal Representation Editing

NeurIPS 2024poster

Recent advancements in vision-language-to-image (VL2I) diffusion generation have made significant progress. While generating images from broad vision-language inputs holds promise, it also raises concerns about potential misuse, such as copying artistic styles without permission, which could have le…

Cited by 0SourcePDFScholar
2023

PMR: Prototypical Modal Rebalance for Multimodal Learning

CVPR 2023poster

Multimodal learning (MML) aims to jointly exploit the common priors of different modalities to compensate for their inherent limitations. However, existing MML methods often optimize a uniform objective for different modalities, leading to the notorious "modality imbalance" problem and counterproduc…

2023

Towards Test-Time Refusals via Concept Negation

NeurIPS 2023poster

Generative models produce unbounded outputs, necessitating the use of refusal techniques to confine their output space. Employing generative refusals is crucial in upholding the ethical and copyright integrity of synthesized content, particularly when working with widely adopted diffusion models. "C…

Cited by 5SourcePDFScholar
2022

A Survey on Gradient Inversion: Attacks, Defenses and Future Directions

IJCAI 2022poster

Recent studies have shown that the training samples can be recovered from gradients, which are called Gradient Inversion (GradInv) attacks. However, there remains a lack of extensive surveys covering recent advances and thorough analysis of this issue. In this paper, we present a comprehensive surve…

Cited by 58SourcePDFScholar