Search Results for author: Mengxuan Hu

Found 12 papers, 3 papers with code

Backdoor in Seconds: Unlocking Vulnerabilities in Large Pre-trained Models via Model Editing

no code implementations23 Oct 2024 Dongliang Guo, Mengxuan Hu, Zihan Guan, Junfeng Guo, Thomas Hartvigsen, Sheng Li

Through empirical studies on the capability for performing backdoor attack in large pre-trained models ($\textit{e. g.,}$ ViT), we find the following unique challenges of attacking large pre-trained models: 1) the inability to manipulate or even access large training datasets, and 2) the substantial computational resources required for training or fine-tuning these models.

Backdoor Attack Image Captioning +3

Causal Inference with Latent Variables: Recent Advances and Future Prospectives

no code implementations20 Jun 2024 Yaochen Zhu, Yinhan He, Jing Ma, Mengxuan Hu, Sheng Li, Jundong Li

Depending on the type of unobserved variables and the specific CI task, various consequences can be incurred if these latent variables are carelessly handled, such as biased estimation of causal effects, incomplete understanding of causal mechanisms, lack of individual-level causal consideration, etc.

Causal Discovery Causal Inference +2

UFID: A Unified Framework for Input-level Backdoor Detection on Diffusion Models

1 code implementation1 Apr 2024 Zihan Guan, Mengxuan Hu, Sheng Li, Anil Vullikanti

Diffusion Models are vulnerable to backdoor attacks, where malicious attackers inject backdoors by poisoning some parts of the training samples during the training stage.

Img2Loc: Revisiting Image Geolocalization using Multi-modality Foundation Models and Image-based Retrieval-Augmented Generation

1 code implementation28 Mar 2024 Zhongliang Zhou, Jielu Zhang, Zihan Guan, Mengxuan Hu, Ni Lao, Lan Mu, Sheng Li, Gengchen Mai

Geolocating precise locations from images presents a challenging problem in computer vision and information retrieval. Traditional methods typically employ either classification, which dividing the Earth surface into grid cells and classifying images accordingly, or retrieval, which identifying locations by matching images with a database of image-location pairs.

Retrieval Text Generation

Bridging Causal Discovery and Large Language Models: A Comprehensive Survey of Integrative Approaches and Future Directions

no code implementations16 Feb 2024 Guangya Wan, Yuqi Wu, Mengxuan Hu, Zhixuan Chu, Sheng Li

Causal discovery (CD) and Large Language Models (LLMs) represent two emerging fields of study with significant implications for artificial intelligence.

Causal Discovery Survey

Task-Driven Causal Feature Distillation: Towards Trustworthy Risk Prediction

no code implementations20 Dec 2023 Zhixuan Chu, Mengxuan Hu, Qing Cui, Longfei Li, Sheng Li

To address this, we propose a Task-Driven Causal Feature Distillation model (TDCFD) to transform original feature values into causal feature attributions for the specific risk prediction task.

XAI meets Biology: A Comprehensive Review of Explainable AI in Bioinformatics Applications

no code implementations11 Dec 2023 Zhongliang Zhou, Mengxuan Hu, Mariah Salcedo, Nathan Gravel, Wayland Yeung, Aarya Venkat, Dongliang Guo, Jielu Zhang, Natarajan Kannan, Sheng Li

Artificial intelligence (AI), particularly machine learning and deep learning models, has significantly impacted bioinformatics research by offering powerful tools for analyzing complex biological data.

Navigate

PharmacyGPT: The AI Pharmacist

no code implementations19 Jul 2023 Zhengliang Liu, Zihao Wu, Mengxuan Hu, Bokai Zhao, Lin Zhao, Tianyi Zhang, Haixing Dai, Xianyan Chen, Ye Shen, Sheng Li, Quanzheng Li, Xiang Li, Brian Murray, Tianming Liu, Andrea Sikora

In this study, we introduce PharmacyGPT, a novel framework to assess the capabilities of large language models (LLMs) such as ChatGPT and GPT-4 in emulating the role of clinical pharmacists.

BadSAM: Exploring Security Vulnerabilities of SAM via Backdoor Attacks

no code implementations5 May 2023 Zihan Guan, Mengxuan Hu, Zhongliang Zhou, Jielu Zhang, Sheng Li, Ninghao Liu

Recently, the Segment Anything Model (SAM) has gained significant attention as an image segmentation foundation model due to its strong performance on various downstream tasks.

Backdoor Attack Image Segmentation +2

Text2Seg: Remote Sensing Image Semantic Segmentation via Text-Guided Visual Foundation Models

1 code implementation20 Apr 2023 Jielu Zhang, Zhongliang Zhou, Gengchen Mai, Mengxuan Hu, Zihan Guan, Sheng Li, Lan Mu

As image databases grow each year, performing automatic segmentation with deep learning models has gradually become the standard approach for processing the data.

Instance Segmentation Segmentation +4

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