Search Results for author: Jiayu Zhou

Found 67 papers, 32 papers with code

FedGreen: Carbon-aware Federated Learning with Model Size Adaptation

no code implementations23 Apr 2024 Ali Abbasi, Fan Dong, Xin Wang, Henry Leung, Jiayu Zhou, Steve Drew

Federated learning (FL) provides a promising collaborative framework to build a model from distributed clients, and this work investigates the carbon emission of the FL process.

Federated Learning Model Compression

On the Generalization Ability of Unsupervised Pretraining

no code implementations11 Mar 2024 Yuyang Deng, Junyuan Hong, Jiayu Zhou, Mehrdad Mahdavi

Recent advances in unsupervised learning have shown that unsupervised pre-training, followed by fine-tuning, can improve model generalization.

Binary Classification Unsupervised Pre-training

Cross-modality debiasing: using language to mitigate sub-population shifts in imaging

no code implementations2 Feb 2024 Yijiang Pang, Bao Hoang, Jiayu Zhou

Specifically, in the context of the distributional robustness of CLIP, we propose to leverage natural language inputs to debias the image feature representations, to improve worst-case performance on sub-populations.

Language Modelling

Stochastic Two Points Method for Deep Model Zeroth-order Optimization

no code implementations2 Feb 2024 Yijiang Pang, Jiayu Zhou

The theoretical properties also shed light on a faster and more stable S2P variant, Accelerated S2P (AS2P), through exploiting our new convergence properties that better represent the dynamics of deep models in training.

Large Language Models in Medical Term Classification and Unexpected Misalignment Between Response and Reasoning

no code implementations19 Dec 2023 Xiaodan Zhang, Sandeep Vemulapalli, Nabasmita Talukdar, Sumyeong Ahn, Jiankun Wang, Han Meng, Sardar Mehtab Bin Murtaza, Aakash Ajay Dave, Dmitry Leshchiner, Dimitri F. Joseph, Martin Witteveen-Lane, Dave Chesla, Jiayu Zhou, Bin Chen

This study assesses the ability of state-of-the-art large language models (LLMs) including GPT-3. 5, GPT-4, Falcon, and LLaMA 2 to identify patients with mild cognitive impairment (MCI) from discharge summaries and examines instances where the models' responses were misaligned with their reasoning.

Decision Making Prompt Engineering

Understanding Deep Gradient Leakage via Inversion Influence Functions

1 code implementation NeurIPS 2023 Haobo Zhang, Junyuan Hong, Yuyang Deng, Mehrdad Mahdavi, Jiayu Zhou

Deep Gradient Leakage (DGL) is a highly effective attack that recovers private training images from gradient vectors.

Safe and Robust Watermark Injection with a Single OoD Image

1 code implementation4 Sep 2023 Shuyang Yu, Junyuan Hong, Haobo Zhang, Haotao Wang, Zhangyang Wang, Jiayu Zhou

Training a high-performance deep neural network requires large amounts of data and computational resources.

Model extraction

FedNoisy: Federated Noisy Label Learning Benchmark

1 code implementation20 Jun 2023 Siqi Liang, Jintao Huang, Junyuan Hong, Dun Zeng, Jiayu Zhou, Zenglin Xu

Federated learning has gained popularity for distributed learning without aggregating sensitive data from clients.

Federated Learning Learning with noisy labels

Revisiting Data-Free Knowledge Distillation with Poisoned Teachers

1 code implementation4 Jun 2023 Junyuan Hong, Yi Zeng, Shuyang Yu, Lingjuan Lyu, Ruoxi Jia, Jiayu Zhou

Data-free knowledge distillation (KD) helps transfer knowledge from a pre-trained model (known as the teacher model) to a smaller model (known as the student model) without access to the original training data used for training the teacher model.

Backdoor Defense for Data-Free Distillation with Poisoned Teachers Data-free Knowledge Distillation

Federated Learning Model Aggregation in Heterogenous Aerial and Space Networks

no code implementations24 May 2023 Fan Dong, Ali Abbasi, Henry Leung, Xin Wang, Jiayu Zhou, Steve Drew

Direct sharing of the data distribution may be prohibitive due to the additional private information that is sent from the clients.

Federated Learning Privacy Preserving

Patchwork Learning: A Paradigm Towards Integrative Analysis across Diverse Biomedical Data Sources

no code implementations10 May 2023 Suraj Rajendran, Weishen Pan, Mert R. Sabuncu, Yong Chen, Jiayu Zhou, Fei Wang

By offering a more comprehensive approach to healthcare data integration, patchwork learning has the potential to revolutionize the clinical applicability of ML models.

Data Integration

Discovering Predictable Latent Factors for Time Series Forecasting

1 code implementation18 Mar 2023 Jingyi Hou, Zhen Dong, Jiayu Zhou, Zhijie Liu

Many real-world data mining tasks, however, lack sufficient variables for relation reasoning, and therefore these methods may not properly handle such forecasting problems.

Time Series Time Series Forecasting

FactReranker: Fact-guided Reranker for Faithful Radiology Report Summarization

no code implementations15 Mar 2023 Qianqian Xie, Jiayu Zhou, Yifan Peng, Fei Wang

We propose to extract medical facts of the input medical report, its gold summary, and candidate summaries based on the RadGraph schema and design the fact-guided reranker to efficiently incorporate the extracted medical facts for selecting the optimal summary.

Graph Generation

FedLE: Federated Learning Client Selection with Lifespan Extension for Edge IoT Networks

no code implementations14 Feb 2023 Jiajun Wu, Steve Drew, Jiayu Zhou

One major challenge preventing the wide adoption of FL in IoT is the pervasive power supply constraints of IoT devices due to the intensive energy consumption of battery-powered clients for local training and model updates.

Federated Learning Privacy Preserving

A Privacy-Preserving Hybrid Federated Learning Framework for Financial Crime Detection

1 code implementation7 Feb 2023 Haobo Zhang, Junyuan Hong, Fan Dong, Steve Drew, Liangjie Xue, Jiayu Zhou

Developing a mechanism for battling financial crimes is an impending task that requires in-depth collaboration from multiple institutions, and yet such collaboration imposed significant technical challenges due to the privacy and security requirements of distributed financial data.

Federated Learning Privacy Preserving

Topology-aware Federated Learning in Edge Computing: A Comprehensive Survey

no code implementations6 Feb 2023 Jiajun Wu, Steve Drew, Fan Dong, Zhuangdi Zhu, Jiayu Zhou

The ultra-low latency requirements of 5G/6G applications and privacy constraints call for distributed machine learning systems to be deployed at the edge.

Edge-computing Federated Learning

MECTA: Memory-Economic Continual Test-Time Model Adaptation

2 code implementations ICLR 2023 Junyuan Hong, Lingjuan Lyu, Jiayu Zhou, Michael Spranger

The proposed MECTA is efficient and can be seamlessly plugged into state-of-theart CTA algorithms at negligible overhead on computation and memory.

Test-time Adaptation

Outsourcing Training without Uploading Data via Efficient Collaborative Open-Source Sampling

no code implementations23 Oct 2022 Junyuan Hong, Lingjuan Lyu, Jiayu Zhou, Michael Spranger

As deep learning blooms with growing demand for computation and data resources, outsourcing model training to a powerful cloud server becomes an attractive alternative to training at a low-power and cost-effective end device.

Model Compression

Trap and Replace: Defending Backdoor Attacks by Trapping Them into an Easy-to-Replace Subnetwork

1 code implementation12 Oct 2022 Haotao Wang, Junyuan Hong, Aston Zhang, Jiayu Zhou, Zhangyang Wang

As a result, both the stem and the classification head in the final network are hardly affected by backdoor training samples.

backdoor defense Classification +1

RUSH: Robust Contrastive Learning via Randomized Smoothing

no code implementations11 Jul 2022 Yijiang Pang, Boyang Liu, Jiayu Zhou

In this paper, we show a surprising fact that contrastive pre-training has an interesting yet implicit connection with robustness, and such natural robustness in the pre trained representation enables us to design a powerful robust algorithm against adversarial attacks, RUSH, that combines the standard contrastive pre-training and randomized smoothing.

Adversarial Robustness Contrastive Learning

Efficient Split-Mix Federated Learning for On-Demand and In-Situ Customization

1 code implementation ICLR 2022 Junyuan Hong, Haotao Wang, Zhangyang Wang, Jiayu Zhou

In this paper, we propose a novel Split-Mix FL strategy for heterogeneous participants that, once training is done, provides in-situ customization of model sizes and robustness.

Personalized Federated Learning

Structure-Based Drug-Drug Interaction Detection via Expressive Graph Convolutional Networks and Deep Sets

1 code implementation AAAI 2022 Mengying Sun, Fei Wang, Olivier Elemento, Jiayu Zhou

In this work, we proposed a DDI detection method based on molecular structures using graph convolutional networks and deep sets.

Persona Authentication through Generative Dialogue

2 code implementations25 Oct 2021 Fengyi Tang, Lifan Zeng, Fei Wang, Jiayu Zhou

In this paper we define and investigate the problem of \emph{persona authentication}: learning a conversational policy to verify the consistency of persona models.

Defending Backdoor Data Poisoning Attacks by Using Noisy Label Defense Algorithm

no code implementations29 Sep 2021 Boyang Liu, Zhuangdi Zhu, Pang-Ning Tan, Jiayu Zhou

We first discuss the limitations of directly using the noisy-label defense algorithms to defend against backdoor attacks.

Backdoor Attack Data Poisoning

Equalized Robustness: Towards Sustainable Fairness Under Distributional Shifts

no code implementations29 Sep 2021 Haotao Wang, Junyuan Hong, Jiayu Zhou, Zhangyang Wang

In this paper, we first propose a new fairness goal, termed Equalized Robustness (ER), to impose fair model robustness against unseen distribution shifts across majority and minority groups.

Fairness

Federated Robustness Propagation: Sharing Robustness in Heterogeneous Federated Learning

1 code implementation18 Jun 2021 Junyuan Hong, Haotao Wang, Zhangyang Wang, Jiayu Zhou

In this paper, we study a novel FL strategy: propagating adversarial robustness from rich-resource users that can afford AT, to those with poor resources that cannot afford it, during federated learning.

Adversarial Robustness Federated Learning

MoCL: Data-driven Molecular Fingerprint via Knowledge-aware Contrastive Learning from Molecular Graph

1 code implementation5 Jun 2021 Mengying Sun, Jing Xing, Huijun Wang, Bin Chen, Jiayu Zhou

Second, the contrastive scheme only learns representations that are invariant to local perturbations and thus does not consider the global structure of the dataset, which may also be useful for downstream tasks.

Contrastive Learning Representation Learning

Data-Free Knowledge Distillation for Heterogeneous Federated Learning

4 code implementations20 May 2021 Zhuangdi Zhu, Junyuan Hong, Jiayu Zhou

Federated Learning (FL) is a decentralized machine-learning paradigm, in which a global server iteratively averages the model parameters of local users without accessing their data.

Data-free Knowledge Distillation Federated Learning +1

MTNet: A Multi-Task Neural Network for On-Field Calibration of Low-Cost Air Monitoring Sensors

no code implementations10 May 2021 Haomin Yu, Yangli-ao Geng, Yingjun Zhang, Qingyong Li, Jiayu Zhou

Despite the popularity of this single-task schema, it may neglect interactions among calibration tasks of different sensors, which encompass underlying information to promote calibration performance.

feature selection

FedFace: Collaborative Learning of Face Recognition Model

no code implementations7 Apr 2021 Divyansh Aggarwal, Jiayu Zhou, Anil K. Jain

DNN-based face recognition models require large centrally aggregated face datasets for training.

Face Recognition Face Verification +1

Margin Preserving Self-paced Contrastive Learning Towards Domain Adaptation for Medical Image Segmentation

1 code implementation15 Mar 2021 Zhizhe Liu, Zhenfeng Zhu, Shuai Zheng, Yang Liu, Jiayu Zhou, Yao Zhao

To bridge the gap between the source and target domains in unsupervised domain adaptation (UDA), the most common strategy puts focus on matching the marginal distributions in the feature space through adversarial learning.

Cardiac Segmentation Contrastive Learning +4

Off-Policy Imitation Learning from Observations

1 code implementation NeurIPS 2020 Zhuangdi Zhu, Kaixiang Lin, Bo Dai, Jiayu Zhou

To further accelerate the learning procedure, we regulate the policy update with an inverse action model, which assists distribution matching from the perspective of mode-covering.

Imitation Learning

Learning Deep Neural Networks under Agnostic Corrupted Supervision

no code implementations12 Feb 2021 Boyang Liu, Mengying Sun, Ding Wang, Pang-Ning Tan, Jiayu Zhou

Training deep neural models in the presence of corrupted supervision is challenging as the corrupted data points may significantly impact the generalization performance.

Dynamic Privacy Budget Allocation Improves Data Efficiency of Differentially Private Gradient Descent

no code implementations19 Jan 2021 Junyuan Hong, Zhangyang Wang, Jiayu Zhou

In this paper, we provide comprehensive analysis of noise influence in dynamic privacy schedules to answer these critical questions.

Provable Robust Learning under Agnostic Corrupted Supervision

no code implementations1 Jan 2021 Boyang Liu, Mengying Sun, Ding Wang, Pang-Ning Tan, Jiayu Zhou

Training deep neural models in the presence of corrupted supervisions is challenging as the corrupted data points may significantly impact the generalization performance.

On Dynamic Noise Influence in Differential Private Learning

no code implementations1 Jan 2021 Junyuan Hong, Zhangyang Wang, Jiayu Zhou

In this paper, we provide comprehensive analysis of noise influence in dynamic privacy schedules to answer these critical questions.

Robust Collaborative Learning with Noisy Labels

no code implementations26 Dec 2020 Mengying Sun, Jing Xing, Bin Chen, Jiayu Zhou

In this paper, we study the underlying mechanism of how disagreement and agreement between networks can help reduce the noise in gradients and develop a novel framework called Robust Collaborative Learning (RCL) that leverages both disagreement and agreement among networks.

Learning with noisy labels Selection bias

A Unified Linear Speedup Analysis of Federated Averaging and Nesterov FedAvg

no code implementations11 Jul 2020 Zhaonan Qu, Kaixiang Lin, Zhaojian Li, Jiayu Zhou, Zhengyuan Zhou

For strongly convex and convex problems, we also characterize the corresponding convergence rates for the Nesterov accelerated FedAvg algorithm, which are the first linear speedup guarantees for momentum variants of FedAvg in convex settings.

Distributed Optimization Federated Learning

Learning Sparse Rewarded Tasks from Sub-Optimal Demonstrations

1 code implementation1 Apr 2020 Zhuangdi Zhu, Kaixiang Lin, Bo Dai, Jiayu Zhou

SAIL bridges the advantages of IL and RL to reduce the sample complexity substantially, by effectively exploiting sup-optimal demonstrations and efficiently exploring the environment to surpass the demonstrated performance.

Continuous Control Imitation Learning +1

MetaPred: Meta-Learning for Clinical Risk Prediction with Limited Patient Electronic Health Records

1 code implementation8 May 2019 Xi Sheryl Zhang, Fengyi Tang, Hiroko Dodge, Jiayu Zhou, Fei Wang

In this paper, we propose MetaPred, a meta-learning for clinical risk prediction from longitudinal patient EHRs.

Meta-Learning

Inferring the Importance of Product Appearance: A Step Towards the Screenless Revolution

no code implementations1 May 2019 Yongshun Gong, Jin-Feng Yi, Dong-Dong Chen, Jian Zhang, Jiayu Zhou, Zhihua Zhou

In this paper, we aim to infer the significance of every item's appearance in consumer decision making and identify the group of items that are suitable for screenless shopping.

Decision Making

Feature-based factorized Bilinear Similarity Model for Cold-Start Top-n Item Recommendation

no code implementations22 Apr 2019 Mohit Sharma, Jiayu Zhou, Junling Hu, George Karypis

The user personalized non-collaborative methods based on item features can be used to address this item cold-start problem.

Boosted Sparse and Low-Rank Tensor Regression

2 code implementations NeurIPS 2018 Lifang He, Kun Chen, Wanwan Xu, Jiayu Zhou, Fei Wang

We propose a sparse and low-rank tensor regression model to relate a univariate outcome to a feature tensor, in which each unit-rank tensor from the CP decomposition of the coefficient tensor is assumed to be sparse.

regression

Model-Protected Multi-Task Learning

1 code implementation18 Sep 2018 Jian Liang, Ziqi Liu, Jiayu Zhou, Xiaoqian Jiang, Chang-Shui Zhang, Fei Wang

Multi-task learning (MTL) refers to the paradigm of learning multiple related tasks together.

Multi-Task Learning Privacy Preserving

Multi-View Graph Convolutional Network and Its Applications on Neuroimage Analysis for Parkinson's Disease

1 code implementation22 May 2018 Xi Sheryl Zhang, Lifang He, Kun Chen, Yuan Luo, Jiayu Zhou, Fei Wang

Parkinson's Disease (PD) is one of the most prevalent neurodegenerative diseases that affects tens of millions of Americans.

Drug Similarity Integration Through Attentive Multi-view Graph Auto-Encoders

1 code implementation28 Apr 2018 Tengfei Ma, Cao Xiao, Jiayu Zhou, Fei Wang

In this paper, we propose to learn accurate and interpretable similarity measures from multiple types of drug features.

Distributed Data Vending on Blockchain

no code implementations15 Mar 2018 Jiayu Zhou, Fengyi Tang, He Zhu, Ning Nan, Ziheng Zhou

However, one key challenge in distributed data vending is the trade-off dilemma between the effectiveness of data retrieval, and the leakage risk from indexing the data.

Retrieval

Subspace Network: Deep Multi-Task Censored Regression for Modeling Neurodegenerative Diseases

1 code implementation ICLR 2018 Mengying Sun, Inci M. Baytas, Liang Zhan, Zhangyang Wang, Jiayu Zhou

Over the past decade a wide spectrum of machine learning models have been developed to model the neurodegenerative diseases, associating biomarkers, especially non-intrusive neuroimaging markers, with key clinical scores measuring the cognitive status of patients.

Multi-Task Learning regression

Differentially Private Generative Adversarial Network

2 code implementations19 Feb 2018 Liyang Xie, Kaixiang Lin, Shu Wang, Fei Wang, Jiayu Zhou

Generative Adversarial Network (GAN) and its variants have recently attracted intensive research interests due to their elegant theoretical foundation and excellent empirical performance as generative models.

Generative Adversarial Network

Efficient Collaborative Multi-Agent Deep Reinforcement Learning for Large-Scale Fleet Management

1 code implementation18 Feb 2018 Kaixiang Lin, Renyu Zhao, Zhe Xu, Jiayu Zhou

Large-scale online ride-sharing platforms have substantially transformed our lives by reallocating transportation resources to alleviate traffic congestion and promote transportation efficiency.

Management Multi-agent Reinforcement Learning +3

Improving Mild Cognitive Impairment Prediction via Reinforcement Learning and Dialogue Simulation

no code implementations18 Feb 2018 Fengyi Tang, Kaixiang Lin, Ikechukwu Uchendu, Hiroko H. Dodge, Jiayu Zhou

Even though there is mild cognitive decline in MCI patients, they have normal overall cognition and thus is challenging to distinguish from normal aging.

reinforcement-learning Reinforcement Learning (RL)

Identify Susceptible Locations in Medical Records via Adversarial Attacks on Deep Predictive Models

no code implementations13 Feb 2018 Mengying Sun, Fengyi Tang, Jin-Feng Yi, Fei Wang, Jiayu Zhou

The surging availability of electronic medical records (EHR) leads to increased research interests in medical predictive modeling.

Two Birds with One Stone: Transforming and Generating Facial Images with Iterative GAN

no code implementations16 Nov 2017 Dan Ma, Bin Liu, Zhao Kang, Jiayu Zhou, Jianke Zhu, Zenglin Xu

Generating high fidelity identity-preserving faces with different facial attributes has a wide range of applications.

Image Generation

Patient Subtyping via Time-Aware LSTM Networks

1 code implementation KDD '17 Proceedings of the 23rd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining 2017 Inci M. Baytas, Cao Xiao, Xi Zhang, Fei Wang, Anil K. Jain, Jiayu Zhou

We propose a patient subtyping model that leverages the proposed T-LSTM in an auto-encoder to learn a powerful single representation for sequential records of patients, which are then used to cluster patients into clinical subtypes.

Multivariate Time Series Forecasting

Missing Modalities Imputation via Cascaded Residual Autoencoder

no code implementations CVPR 2017 Luan Tran, Xiaoming Liu, Jiayu Zhou, Rong Jin

To leverage the valuable information in the corrupted data, we propose to impute the missing data by leveraging the relatedness among different modalities.

Imputation Object Recognition

Collaborative Deep Reinforcement Learning

1 code implementation19 Feb 2017 Kaixiang Lin, Shu Wang, Jiayu Zhou

Motivated by human collaborative learning, in this paper we propose a collaborative deep reinforcement learning (CDRL) framework that performs adaptive knowledge transfer among heterogeneous learning agents.

Knowledge Distillation OpenAI Gym +3

Asynchronous Multi-Task Learning

1 code implementation30 Sep 2016 Inci M. Baytas, Ming Yan, Anil K. Jain, Jiayu Zhou

The models for each hospital may be different because of the inherent differences in the distributions of the patient populations.

Multi-Task Learning

Learning A Task-Specific Deep Architecture For Clustering

no code implementations1 Sep 2015 Zhangyang Wang, Shiyu Chang, Jiayu Zhou, Meng Wang, Thomas S. Huang

In this paper, we propose to emulate the sparse coding-based clustering pipeline in the context of deep learning, leading to a carefully crafted deep model benefiting from both.

Clustering

A Safe Screening Rule for Sparse Logistic Regression

no code implementations NeurIPS 2014 Jie Wang, Jiayu Zhou, Jun Liu, Peter Wonka, Jieping Ye

The l1-regularized logistic regression (or sparse logistic regression) is a widely used method for simultaneous classification and feature selection.

feature selection regression

Clustered Multi-Task Learning Via Alternating Structure Optimization

no code implementations NeurIPS 2011 Jiayu Zhou, Jianhui Chen, Jieping Ye

We further establish the equivalence relationship between the proposed convex relaxation of CMTL and an existing convex relaxation of ASO, and show that the proposed convex CMTL formulation is significantly more efficient especially for high-dimensional data.

Multi-Task Learning

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