Search Results for author: Chen Hu

Found 16 papers, 6 papers with code

An Element-Wise Weights Aggregation Method for Federated Learning

1 code implementation24 Apr 2024 Yi Hu, Hanchi Ren, Chen Hu, Jingjing Deng, Xianghua Xie

A central challenge in FL is the effective aggregation of local model weights from disparate and potentially unbalanced participating clients.

PointGrasp: Point Cloud-based Grasping for Tendon-driven Soft Robotic Glove Applications

no code implementations19 Mar 2024 Chen Hu, Shirui Lyu, Eojin Rho, Daekyum Kim, Shan Luo, Letizia Gionfrida

The proposed pipeline demonstrates an average RMSE of 0. 8 $\pm$ 0. 39 cm for simple and 0. 11 $\pm$ 0. 06 cm for complex geometries.

A Survey on Vulnerability of Federated Learning: A Learning Algorithm Perspective

1 code implementation27 Nov 2023 Xianghua Xie, Chen Hu, Hanchi Ren, Jingjing Deng

In this survey paper, our research indicates that the to-learn data, the learning gradients, and the learned model at different stages all can be manipulated to initiate malicious attacks that range from undermining model performance, reconstructing private local data, and to inserting backdoors.

Federated Learning Privacy Preserving

Scale-Adaptive Feature Aggregation for Efficient Space-Time Video Super-Resolution

1 code implementation26 Oct 2023 Zhewei Huang, Ailin Huang, Xiaotao Hu, Chen Hu, Jun Xu, Shuchang Zhou

The Space-Time Video Super-Resolution (STVSR) task aims to enhance the visual quality of videos, by simultaneously performing video frame interpolation (VFI) and video super-resolution (VSR).

Space-time Video Super-resolution Video Frame Interpolation +1

Proximal Policy Optimization Actual Combat: Manipulating Output Tokenizer Length

no code implementations10 Aug 2023 Miao Fan, Chen Hu, Shuchang Zhou

In this paper, we introduce a simple task designed to employ Gloden as a reward model that validates the effectiveness of PPO and inspires it, primarily explaining the task of utilizing PPO to manipulate the tokenizer length of the output generated by the model.

OccDepth: A Depth-Aware Method for 3D Semantic Scene Completion

1 code implementation27 Feb 2023 Ruihang Miao, Weizhou Liu, Mingrui Chen, Zheng Gong, Weixin Xu, Chen Hu, Shuchang Zhou

3D Semantic Scene Completion (SSC) can provide dense geometric and semantic scene representations, which can be applied in the field of autonomous driving and robotic systems.

3D Semantic Scene Completion Autonomous Driving +1

Occ^2Net: Robust Image Matching Based on 3D Occupancy Estimation for Occluded Regions

no code implementations ICCV 2023 Miao Fan, Mingrui Chen, Chen Hu, Shuchang Zhou

Image matching is a fundamental and critical task in various visual applications, such as Simultaneous Localization and Mapping (SLAM) and image retrieval, which require accurate pose estimation.

Image Retrieval Inductive Bias +3

Toward Data Heterogeneity of Federated Learning

no code implementations17 Dec 2022 YuChuan Huang, Chen Hu

Federated learning is a popular paradigm for machine learning.

Federated Learning

Self-Supervised Learning for MRI Reconstruction with a Parallel Network Training Framework

1 code implementation26 Sep 2021 Chen Hu, Cheng Li, Haifeng Wang, Qiegen Liu, Hairong Zheng, Shanshan Wang

Specifically, during model optimization, two subsets are constructed by randomly selecting part of k-space data from the undersampled data and then fed into two parallel reconstruction networks to perform information recovery.

Model Optimization MRI Reconstruction +1

Regression Trees for Cumulative Incidence Functions

no code implementations13 Nov 2020 Youngjoo Cho, Annette M. Molinaro, Chen Hu, Robert L. Strawderman

In this paper, we develop a novel approach to building regression trees for estimating cumulative incidence curves in a competing risks setting.

regression

Integrating global spatial features in CNN based Hyperspectral/SAR imagery classification

no code implementations30 May 2020 Fan Zhang, MinChao Yan, Chen Hu, Jun Ni, Fei Ma

In addition, a dual-branch convolutional neural network (CNN) classification method is designed in combination with the global information to mine the pixel features of the image.

Classification General Classification +3

Two-Timescale Channel Estimation for Reconfigurable Intelligent Surface Aided Wireless Communications

no code implementations17 Dec 2019 Chen Hu, Linglong Dai

Although the mobile RIS-UE channel has to be frequently estimated in a small timescale, the associated pilot overhead is low thanks to its low dimension.

Vocal Bursts Valence Prediction

Deep Learning for Beamspace Channel Estimation in Millimeter-Wave Massive MIMO Systems

no code implementations28 Oct 2019 Xiuhong Wei, Chen Hu, Linglong Dai

Specifically, based on the prior information that beamspace channel elements can be modeled by the Gaussian mixture distribution, we first derive a new shrinkage function to refine the AMP algorithm.

Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-Line Region and Mass of the Central Black Hole in Mrk 142

no code implementations15 Nov 2018 Yan-Rong Li, Yu-Yang Songsheng, Jie Qiu, Chen Hu, Pu Du, Kai-Xing Lu, Ying-Ke Huang, Jin-Ming Bai, Wei-Hao Bian, Ye-Fei Yuan, Luis C. Ho, Jian-Min Wang

We apply three BLR models with different prescriptions of BLR clouds distributions and find that the best model for fitting the data of Mrk 142 is a two-zone BLR model, consistent with the theoretical BLR model surrounding slim accretion disks.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

SAR Target Recognition Using the Multi-aspect-aware Bidirectional LSTM Recurrent Neural Networks

no code implementations25 Jul 2017 Fan Zhang, Chen Hu, Qiang Yin, Wei Li, Heng-Chao Li, Wen Hong

However, there is a limitation in current deep learning based ATR solution that each learning process only handle one SAR image, namely learning the static scattering information, while missing the space-varying information.

Dimensionality Reduction

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