Search Results for author: Zhaoxi Zhang

Found 14 papers, 3 papers with code

Not All Edges are Equally Robust: Evaluating the Robustness of Ranking-Based Federated Learning

no code implementations12 Mar 2025 Zirui Gong, Yanjun Zhang, Leo Yu Zhang, Zhaoxi Zhang, Yong Xiang, Shirui Pan

The VEM attack focuses on identifying and perturbing the most vulnerable edges in each layer and leveraging an optimization-based approach to maximize the attack's impact.

All Federated Learning +1

DuoLift-GAN:Reconstructing CT from Single-view and Biplanar X-Rays with Generative Adversarial Networks

no code implementations12 Nov 2024 Zhaoxi Zhang, Yueliang Ying

Computed tomography (CT) provides highly detailed three-dimensional (3D) medical images but is costly, time-consuming, and often inaccessible in intraoperative settings (Organization et al. 2011).

Computed Tomography (CT)

Transferring Knowledge from High-Quality to Low-Quality MRI for Adult Glioma Diagnosis

no code implementations24 Oct 2024 Yanguang Zhao, Long Bai, Zhaoxi Zhang, Yanan Wu, Mobarakol Islam, Hongliang Ren

Our top-performing model achieves Dice scores of 0. 882, 0. 840, and 0. 926, and Hausdorff Distance (95%) scores of 15. 324, 37. 518, and 13. 971 for enhancing tumor, tumor core, and whole tumor, respectively, in the validation phase.

Prognosis Super-Resolution +1

A Survey of Uncertainty Estimation in LLMs: Theory Meets Practice

no code implementations20 Oct 2024 Hsiu-Yuan Huang, Yutong Yang, Zhaoxi Zhang, Sanwoo Lee, Yunfang Wu

As large language models (LLMs) continue to evolve, understanding and quantifying the uncertainty in their predictions is critical for enhancing application credibility.

Bayesian Inference Out-of-Distribution Detection +1

Cloud-Based Federation Framework and Prototype for Open, Scalable, and Shared Access to NextG and IoT Testbeds

no code implementations26 Aug 2024 Maxwell McManus, Tenzin Rinchen, Annoy Dey, Sumanth Thota, Zhaoxi Zhang, Jiangqi Hu, Xi Wang, Mingyue Ji, Nicholas Mastronarde, Elizabeth Serena Bentley, Michael Medley, Zhangyu Guan

In this work, we present a new federation framework for UnionLabs, an innovative cloud-based resource-sharing infrastructure designed for next-generation (NextG) and Internet of Things (IoT) over-the-air (OTA) experiments.

Structure-preserving Image Translation for Depth Estimation in Colonoscopy Video

1 code implementation19 Aug 2024 Shuxian Wang, Akshay Paruchuri, Zhaoxi Zhang, Sarah McGill, Roni Sengupta

Monocular depth estimation in colonoscopy video aims to overcome the unusual lighting properties of the colonoscopic environment.

Monocular Depth Estimation Translation

Large Language Model Watermark Stealing With Mixed Integer Programming

no code implementations30 May 2024 Zhaoxi Zhang, Xiaomei Zhang, Yanjun Zhang, Leo Yu Zhang, Chao Chen, Shengshan Hu, Asif Gill, Shirui Pan

The Large Language Model (LLM) watermark is a newly emerging technique that shows promise in addressing concerns surrounding LLM copyright, monitoring AI-generated text, and preventing its misuse.

Language Modeling Language Modelling +1

Surgical-LVLM: Learning to Adapt Large Vision-Language Model for Grounded Visual Question Answering in Robotic Surgery

no code implementations22 Mar 2024 Guankun Wang, Long Bai, Wan Jun Nah, Jie Wang, Zhaoxi Zhang, Zhen Chen, Jinlin Wu, Mobarakol Islam, Hongbin Liu, Hongliang Ren

Recent advancements in Surgical Visual Question Answering (Surgical-VQA) and related region grounding have shown great promise for robotic and medical applications, addressing the critical need for automated methods in personalized surgical mentorship.

Language Modeling Language Modelling +3

Masked Language Model Based Textual Adversarial Example Detection

1 code implementation18 Apr 2023 Xiaomei Zhang, Zhaoxi Zhang, Qi Zhong, Xufei Zheng, Yanjun Zhang, Shengshan Hu, Leo Yu Zhang

To explore how to use the masked language model in adversarial detection, we propose a novel textual adversarial example detection method, namely Masked Language Model-based Detection (MLMD), which can produce clearly distinguishable signals between normal examples and adversarial examples by exploring the changes in manifolds induced by the masked language model.

Adversarial Defense Language Modeling +2

Self-Supervised Adversarial Example Detection by Disentangled Representation

no code implementations NeurIPS 2021 Zhaoxi Zhang, Leo Yu Zhang, Xufei Zheng, Jinyu Tian, Jiantao Zhou

To alleviate this problem, we explore how to detect adversarial examples with disentangled label/semantic features under the autoencoder structure.

Adversarial Attack

The Modeling of SDL Aiming at Knowledge Acquisition in Automatic Driving

no code implementations7 Dec 2018 Zecang Gu, Yin Liang, Zhaoxi Zhang

In this paper we proposed an ultimate theory to solve the multi-target control problem through its introduction to the machine learning framework in automatic driving, which explored the implementation of excellent drivers' knowledge acquisition.

BIG-bench Machine Learning

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