Search Results for author: Xu Yuan

Found 17 papers, 5 papers with code

Regional Weather Variable Predictions by Machine Learning with Near-Surface Observational and Atmospheric Numerical Data

no code implementations11 Dec 2024 Yihe Zhang, Bryce Turney, Purushottam Sigdel, Xu Yuan, Eric Rappin, Adrian Lago, Sytske Kimball, Li Chen, Paul Darby, Lu Peng, Sercan Aygun, Yazhou Tu, M. Hassan Najafi, Nian-Feng Tzeng

The MiMa model employs an encoder-decoder transformer structure, with two encoders for processing multivariate data from both datasets and a decoder for forecasting weather variables over short time horizons.

Decoder Weather Forecasting

BadCM: Invisible Backdoor Attack Against Cross-Modal Learning

1 code implementation3 Oct 2024 Zheng Zhang, Xu Yuan, Lei Zhu, Jingkuan Song, Liqiang Nie

In this paper, we introduce a novel bilateral backdoor to fill in the missing pieces of the puzzle in the cross-modal backdoor and propose a generalized invisible backdoor framework against cross-modal learning (BadCM).

Backdoor Attack Cross-Modal Retrieval +1

Instruction-guided Multi-Granularity Segmentation and Captioning with Large Multimodal Model

1 code implementation20 Sep 2024 Li Zhou, Xu Yuan, Zenghui Sun, Zikun Zhou, Jingsong Lan

Observing the lack of a benchmark for model training and evaluation over the MGSC task, we establish a benchmark with aligned masks and captions in multi-granularity using our customized automated annotation pipeline.

Image Captioning Panoptic Segmentation +2

Towards Robust Vision Transformer via Masked Adaptive Ensemble

no code implementations22 Jul 2024 Fudong Lin, Jiadong Lou, Xu Yuan, Nian-Feng Tzeng

This design enables our ViT architecture to achieve a better trade-off between standard accuracy and robustness.

Adversarial Robustness

FedClust: Tackling Data Heterogeneity in Federated Learning through Weight-Driven Client Clustering

no code implementations9 Jul 2024 Md Sirajul Islam, Simin Javaherian, Fei Xu, Xu Yuan, Li Chen, Nian-Feng Tzeng

Federated learning (FL) is an emerging distributed machine learning paradigm that enables collaborative training of machine learning models over decentralized devices without exposing their local data.

Federated Learning

An Open and Large-Scale Dataset for Multi-Modal Climate Change-aware Crop Yield Predictions

1 code implementation10 Jun 2024 Fudong Lin, Kaleb Guillot, Summer Crawford, Yihe Zhang, Xu Yuan, Nian-Feng Tzeng

Precise crop yield predictions are of national importance for ensuring food security and sustainable agricultural practices.

Deep Learning Drug Discovery

Higher-order Structure Based Anomaly Detection on Attributed Networks

no code implementations7 Jun 2024 Xu Yuan, Na Zhou, Shuo Yu, Huafei Huang, Zhikui Chen, Feng Xia

Such patterns can be modeled by higher-order network structures, thus benefiting anomaly detection on attributed networks.

Anomaly Detection Attribute +4

FedClust: Optimizing Federated Learning on Non-IID Data through Weight-Driven Client Clustering

no code implementations7 Mar 2024 Md Sirajul Islam, Simin Javaherian, Fei Xu, Xu Yuan, Li Chen, Nian-Feng Tzeng

Clustered federated learning (CFL) addresses this challenge by grouping clients based on the similarity of their data distributions.

Federated Learning

Semantic-Aware Adversarial Training for Reliable Deep Hashing Retrieval

1 code implementation IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY 2023 Xu Yuan, Zheng Zhang, Xunguang Wang, Lin Wu

Further, we, for the first time, formulate the formalized adversarial training of deep hashing into a unified minimax optimization under the guidance of the generated mainstay codes.

Adversarial Attack Adversarial Robustness +2

MMST-ViT: Climate Change-aware Crop Yield Prediction via Multi-Modal Spatial-Temporal Vision Transformer

1 code implementation ICCV 2023 Fudong Lin, Summer Crawford, Kaleb Guillot, Yihe Zhang, Yan Chen, Xu Yuan, Li Chen, Shelby Williams, Robert Minvielle, Xiangming Xiao, Drew Gholson, Nicolas Ashwell, Tri Setiyono, Brenda Tubana, Lu Peng, Magdy Bayoumi, Nian-Feng Tzeng

In this work, we develop a deep learning-based solution, namely Multi-Modal Spatial-Temporal Vision Transformer (MMST-ViT), for predicting crop yields at the county level across the United States, by considering the effects of short-term meteorological variations during the growing season and the long-term climate change on crops.

Contrastive Learning Crop Yield Prediction +1

Backdoor Federated Learning by Poisoning Backdoor-Critical Layers

no code implementations8 Aug 2023 Haomin Zhuang, Mingxian Yu, Hao Wang, Yang Hua, Jian Li, Xu Yuan

Federated learning (FL) has been widely deployed to enable machine learning training on sensitive data across distributed devices.

Backdoor Attack Federated Learning

Workie-Talkie: Accelerating Federated Learning by Overlapping Computing and Communications via Contrastive Regularization

no code implementations ICCV 2023 Rui Chen, Qiyu Wan, Pavana Prakash, Lan Zhang, Xu Yuan, Yanmin Gong, Xin Fu, Miao Pan

However, practical deployment of FL over mobile devices is very challenging because (i) conventional FL incurs huge training latency for mobile devices due to interleaved local computing and communications of model updates, (ii) there are heterogeneous training data across mobile devices, and (iii) mobile devices have hardware heterogeneity in terms of computing and communication capabilities.

Federated Learning

Hierarchical Multi-Interest Co-Network For Coarse-Grained Ranking

no code implementations19 Oct 2022 Xu Yuan, Chen Xu, Qiwei Chen, Tao Zhuang, Hongjie Chen, Chao Li, Junfeng Ge

This paper proposes a Hierarchical Multi-Interest Co-Network (HCN) to capture users' diverse interests in the coarse-grained ranking stage.

Accelerating Serverless Computing by Harvesting Idle Resources

no code implementations28 Aug 2021 Hanfei Yu, Hao Wang, Jian Li, Xu Yuan, Seung-Jong Park

Serverless computing automates fine-grained resource scaling and simplifies the development and deployment of online services with stateless functions.

Deep Reinforcement Learning

Multiple-Input Multiple-Output Fusion Network For Generalized Zero-Shot Learning

no code implementations IEEE 2021 Fangming Zhong∗, Guangze Wang, Zhikui Chen, Xu Yuan, Feng Xia

Generalized zero-shot learning (GZSL) has attracted consid- erable attention recently, which trains models with data from seen classes and tests on data from both seen and unseen classes.

Generalized Zero-Shot Learning

Asymptotics of solutions with a compactness property for the nonlinear damped Klein-Gordon equation

no code implementations22 Feb 2021 Raphaël Côte, Xu Yuan

We consider the nonlinear damped Klein-Gordon equation \[ \partial_{tt}u+2\alpha\partial_{t}u-\Delta u+u-|u|^{p-1}u=0 \quad \text{on} \ \ [0,\infty)\times \mathbb{R}^N \] with $\alpha>0$, $2 \le N\le 5$ and energy subcritical exponents $p>2$.

Analysis of PDEs

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