Search Results for author: Ying Cui

Found 21 papers, 5 papers with code

GQFedWAvg: Optimization-Based Quantized Federated Learning in General Edge Computing Systems

1 code implementation13 Jun 2023 Yangchen Li, Ying Cui, Vincent Lau

In this paper, we propose an optimization-based quantized FL algorithm, which can appropriately fit a general edge computing system with uniform or nonuniform computing and communication resources at the workers.

Edge-computing Federated Learning +1

Trustworthy Multi-phase Liver Tumor Segmentation via Evidence-based Uncertainty

no code implementations9 May 2023 Chuanfei Hu, Tianyi Xia, Ying Cui, Quchen Zou, Yuancheng Wang, Wenbo Xiao, Shenghong Ju, Xinde Li

Multi-phase liver contrast-enhanced computed tomography (CECT) images convey the complementary multi-phase information for liver tumor segmentation (LiTS), which are crucial to assist the diagnosis of liver cancer clinically.

Segmentation Tumor Segmentation

Optimization and Optimizers for Adversarial Robustness

no code implementations23 Mar 2023 Hengyue Liang, Buyun Liang, Le Peng, Ying Cui, Tim Mitchell, Ju Sun

Taking advantage of PWCF and other existing numerical algorithms, we further explore the distinct patterns in the solutions found for solving these optimization problems using various combinations of losses, perturbation models, and optimization algorithms.

Adversarial Robustness

Imbalanced Classification in Medical Imaging via Regrouping

no code implementations21 Oct 2022 Le Peng, Yash Travadi, Rui Zhang, Ying Cui, Ju Sun

We propose performing imbalanced classification by regrouping majority classes into small classes so that we turn the problem into balanced multiclass classification.

Image Classification imbalanced classification +1

Optimization for Robustness Evaluation beyond $\ell_p$ Metrics

no code implementations2 Oct 2022 Hengyue Liang, Buyun Liang, Ying Cui, Tim Mitchell, Ju Sun

Empirical evaluation of deep learning models against adversarial attacks entails solving nontrivial constrained optimization problems.

Optimization-based Block Coordinate Gradient Coding for Mitigating Partial Stragglers in Distributed Learning

no code implementations6 Jun 2022 Qi Wang, Ying Cui, Chenglin Li, Junni Zou, Hongkai Xiong

To reduce computational complexity, we first transform each to an equivalent but much simpler discrete problem with N\llL variables representing the partition of the L coordinates into N blocks, each with identical redundancy.

PointAttN: You Only Need Attention for Point Cloud Completion

1 code implementation16 Mar 2022 Jun Wang, Ying Cui, Dongyan Guo, Junxia Li, Qingshan Liu, Chunhua Shen

To solve the problems, we leverage the cross-attention and self-attention mechanisms to design novel neural network for processing point cloud in a per-point manner to eliminate kNNs.

Point Cloud Completion

An Optimization Framework for Federated Edge Learning

no code implementations26 Nov 2021 Yangchen Li, Ying Cui, Vincent Lau

To explore the full potential of FL in such an edge computing system, we first present a general FL algorithm, namely GenQSGD, parameterized by the numbers of global and local iterations, mini-batch size, and step size sequence.

Edge-computing Federated Learning +1

Energy-efficient Cooperative Offloading for Edge Computing-enabled Vehicular Networks

no code implementations1 Nov 2021 Hewon Cho, Ying Cui, Jemin Lee

Edge computing technology has great potential to improve various computation-intensive applications in vehicular networks by providing sufficient computation resources for vehicles.

Edge-computing Total Energy

Optimization-Based GenQSGD for Federated Edge Learning

no code implementations25 Oct 2021 Yangchen Li, Ying Cui, Vincent Lau

Then, we optimize the algorithm parameters to minimize the energy cost under the time constraint and convergence error constraint.

Edge-computing Federated Learning

Sample-based and Feature-based Federated Learning for Unconstrained and Constrained Nonconvex Optimization via Mini-batch SSCA

1 code implementation13 Apr 2021 Ying Cui, Yangchen Li, Chencheng Ye

We show that the proposed FL algorithms converge to stationary points and Karush-Kuhn-Tucker (KKT) points of the respective unconstrained and constrained nonconvex problems, respectively.

Federated Learning

Sample-based Federated Learning via Mini-batch SSCA

no code implementations17 Mar 2021 Chencheng Ye, Ying Cui

In this paper, we investigate unconstrained and constrained sample-based federated optimization, respectively.

Federated Learning Privacy Preserving

Graph Attention Tracking

no code implementations CVPR 2021 Dongyan Guo, Yanyan Shao, Ying Cui, Zhenhua Wang, Liyan Zhang, Chunhua Shen

We propose to establish part-to-part correspondence between the target and the search region with a complete bipartite graph, and apply the graph attention mechanism to propagate target information from the template feature to the search feature.

Graph Attention Object Tracking +1

Jointly Sparse Signal Recovery and Support Recovery via Deep Learning with Applications in MIMO-based Grant-Free Random Access

no code implementations5 Aug 2020 Ying Cui, Shuaichao Li, Wanqing Zhang

Recent key applications include channel estimation and device activity detection in MIMO-based grant-free random access which is proposed to support massive machine-type communications (mMTC) for Internet of Things (IoT).

Action Detection Activity Detection +1

Improving auto-encoder novelty detection using channel attention and entropy minimization

no code implementations3 Jul 2020 Miao Tian, Dongyan Guo, Ying Cui, Xiang Pan, Sheng-Yong Chen

Novelty detection is a important research area which mainly solves the classification problem of inliers which usually consists of normal samples and outliers composed of abnormal samples.

Novelty Detection

SiamCAR: Siamese Fully Convolutional Classification and Regression for Visual Tracking

2 code implementations CVPR 2020 Dongyan Guo, Jun Wang, Ying Cui, Zhenhua Wang, Sheng-Yong Chen

The proposed framework SiamCAR consists of two simple subnetworks: one Siamese subnetwork for feature extraction and one classification-regression subnetwork for bounding box prediction.

Classification General Classification +3

Statistical Analysis of Stationary Solutions of Coupled Nonconvex Nonsmooth Empirical Risk Minimization

no code implementations6 Oct 2019 Zhengling Qi, Ying Cui, Yufeng Liu, Jong-Shi Pang

This paper has two main goals: (a) establish several statistical properties---consistency, asymptotic distributions, and convergence rates---of stationary solutions and values of a class of coupled nonconvex and nonsmoothempirical risk minimization problems, and (b) validate these properties by a noisy amplitude-based phase retrieval problem, the latter being of much topical interest. Derived from available data via sampling, these empirical risk minimization problems are the computational workhorse of a population risk model which involves the minimization of an expected value of a random functional.

Retrieval

Estimation of Individualized Decision Rules Based on an Optimized Covariate-Dependent Equivalent of Random Outcomes

no code implementations27 Aug 2019 Zhengling Qi, Ying Cui, Yufeng Liu, Jong-Shi Pang

Recent exploration of optimal individualized decision rules (IDRs) for patients in precision medicine has attracted a lot of attention due to the heterogeneous responses of patients to different treatments.

Decision Making

Clustering by Orthogonal NMF Model and Non-Convex Penalty Optimization

1 code implementation3 Jun 2019 Shuai Wang, Tsung-Hui Chang, Ying Cui, Jong-Shi Pang

We then apply a non-convex penalty (NCP) approach to add them to the objective as penalty terms, leading to a problem that is efficiently solvable.

Clustering

End-to-end feature fusion siamese network for adaptive visual tracking

no code implementations4 Feb 2019 Dongyan Guo, Jun Wang, Weixuan Zhao, Ying Cui, Zhenhua Wang, Sheng-Yong Chen

Both features and the channel weights are utilized in a template generation layer to generate a discriminative template.

Visual Tracking

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