Search Results for author: Pengyu Zhang

Found 17 papers, 5 papers with code

Deciphering public attention to geoengineering and climate issues using machine learning and dynamic analysis

1 code implementation11 May 2024 Ramit Debnath, Pengyu Zhang, Tianzhu Qin, R. Michael Alvarez, Shaun D. Fitzgerald

As the conversation around using geoengineering to combat climate change intensifies, it is imperative to engage the public and deeply understand their perspectives on geoengineering research, development, and potential deployment.

Sentiment Analysis Time Series Regression

When Foresight Pruning Meets Zeroth-Order Optimization: Efficient Federated Learning for Low-Memory Devices

no code implementations8 May 2024 Pengyu Zhang, Yingjie Liu, Yingbo Zhou, Xiao Du, Xian Wei, Ting Wang, Mingsong Chen

Comprehensive experimental results obtained from simulation- and real test-bed-based platforms show that our federated foresight-pruning method not only preserves the ability of the dense model with a memory reduction up to 9x but also boosts the performance of the vanilla BP-Free method with dramatically fewer FLOPs.

Federated Learning

Personalized Federated Instruction Tuning via Neural Architecture Search

no code implementations26 Feb 2024 Pengyu Zhang, Yingbo Zhou, Ming Hu, Junxian Feng, Jiawen Weng, Mingsong Chen

Federated Instruction Tuning (FIT) has shown the ability to achieve collaborative model instruction tuning among massive data owners without sharing private data.

Neural Architecture Search

QACP: An Annotated Question Answering Dataset for Assisting Chinese Python Programming Learners

1 code implementation30 Jan 2024 Rui Xiao, Lu Han, Xiaoying Zhou, Jiong Wang, Na Zong, Pengyu Zhang

In online learning platforms, particularly in rapidly growing computer programming courses, addressing the thousands of students' learning queries requires considerable human cost.

Question Answering

Exact Fusion via Feature Distribution Matching for Few-shot Image Generation

1 code implementation CVPR 2024 Yingbo Zhou, Yutong Ye, Pengyu Zhang, Xian Wei, Mingsong Chen

In this paper we propose an exact Fusion via Feature Distribution matching Generative Adversarial Network (F2DGAN) for few-shot image generation.

Data Augmentation Diversity +2

Situation-Dependent Causal Influence-Based Cooperative Multi-agent Reinforcement Learning

no code implementations15 Dec 2023 Xiao Du, Yutong Ye, Pengyu Zhang, Yaning Yang, Mingsong Chen, Ting Wang

To this end, in this paper, we propose a novel MARL algorithm named Situation-Dependent Causal Influence-Based Cooperative Multi-agent Reinforcement Learning (SCIC), which incorporates a novel Intrinsic reward mechanism based on a new cooperation criterion measured by situation-dependent causal influence among agents.

Multi-agent Reinforcement Learning reinforcement-learning +1

AdapterFL: Adaptive Heterogeneous Federated Learning for Resource-constrained Mobile Computing Systems

no code implementations23 Nov 2023 Ruixuan Liu, Ming Hu, Zeke Xia, Jun Xia, Pengyu Zhang, Yihao Huang, Yang Liu, Mingsong Chen

On the one hand, to achieve model training in all the diverse clients, mobile computing systems can only use small low-performance models for collaborative learning.

Federated Learning

EqGAN: Feature Equalization Fusion for Few-shot Image Generation

no code implementations27 Jul 2023 Yingbo Zhou, Zhihao Yue, Yutong Ye, Pengyu Zhang, Xian Wei, Mingsong Chen

Due to the absence of fine structure and texture information, existing fusion-based few-shot image generation methods suffer from unsatisfactory generation quality and diversity.

Decoder Diversity +2

CyclicFL: A Cyclic Model Pre-Training Approach to Efficient Federated Learning

no code implementations28 Jan 2023 Pengyu Zhang, Yingbo Zhou, Ming Hu, Xian Wei, Mingsong Chen

We formally analyze the significance of data consistency between the pre-training and training stages of CyclicFL, showing the limited Lipschitzness of loss for the pre-trained models by CyclicFL.

Continual Learning Federated Learning

RF-CHORD: Towards Deployable RFID Localization System for Logistics Network

no code implementations1 Nov 2022 Bo Liang, Purui Wang, Renjie Zhao, Heyu Guo, Pengyu Zhang, Junchen Guo, Shunmin Zhu, Hongqiang Harry Liu, Xinyu Zhang, Chenren Xu

RFID localization is considered the key enabler of automating the process of inventory tracking and management for high-performance logistic network.

Management

SRRT: Exploring Search Region Regulation for Visual Object Tracking

no code implementations10 Jul 2022 Jiawen Zhu, Xin Chen, Pengyu Zhang, Xinying Wang, Dong Wang, Wenda Zhao, Huchuan Lu

The dominant trackers generate a fixed-size rectangular region based on the previous prediction or initial bounding box as the model input, i. e., search region.

Visual Object Tracking

Visible-Thermal UAV Tracking: A Large-Scale Benchmark and New Baseline

1 code implementation CVPR 2022 Pengyu Zhang, Jie Zhao, Dong Wang, Huchuan Lu, Xiang Ruan

With the popularity of multi-modal sensors, visible-thermal (RGB-T) object tracking is to achieve robust performance and wider application scenarios with the guidance of objects' temperature information.

Attribute Diversity +2

Multi-modal Visual Tracking: Review and Experimental Comparison

2 code implementations8 Dec 2020 Pengyu Zhang, Dong Wang, Huchuan Lu

Visual object tracking, as a fundamental task in computer vision, has drawn much attention in recent years.

Rgb-T Tracking Visual Object Tracking

Jointly Modeling Motion and Appearance Cues for Robust RGB-T Tracking

no code implementations4 Jul 2020 Pengyu Zhang, Jie Zhao, Dong Wang, Huchuan Lu, Xiaoyun Yang

In this study, we propose a novel RGB-T tracking framework by jointly modeling both appearance and motion cues.

Rgb-T Tracking

Smartphone App Usage Prediction Using Points of Interest

no code implementations26 Nov 2017 Donghan Yu, Yong Li, Fengli Xu, Pengyu Zhang, Vassilis Kostakos

In this paper we present the first population-level, city-scale analysis of application usage on smartphones.

Transfer Learning

Trajectory Recovery From Ash: User Privacy Is NOT Preserved in Aggregated Mobility Data

no code implementations21 Feb 2017 Fengli Xu, Zhen Tu, Yong Li, Pengyu Zhang, Xiao-Ming Fu, Depeng Jin

By conducting experiments on two real-world datasets collected from both mobile application and cellular network, we reveal that the attack system is able to recover users' trajectories with accuracy about 73%~91% at the scale of tens of thousands to hundreds of thousands users, which indicates severe privacy leakage in such datasets.

Computers and Society Cryptography and Security

Cannot find the paper you are looking for? You can Submit a new open access paper.