Search Results for author: Xiuzhen Cheng

Found 15 papers, 6 papers with code

Poisson-Gamma Dynamical Systems with Non-Stationary Transition Dynamics

no code implementations26 Feb 2024 Jiahao Wang, Sikun Yang, Heinz Koeppl, Xiuzhen Cheng, Pengfei Hu, Guoming Zhang

Bayesian methodologies for handling count-valued time series have gained prominence due to their ability to infer interpretable latent structures and to estimate uncertainties, and thus are especially suitable for dealing with noisy and incomplete count data.

Data Augmentation Time Series

Communication Efficient and Provable Federated Unlearning

no code implementations19 Jan 2024 Youming Tao, Cheng-Long Wang, Miao Pan, Dongxiao Yu, Xiuzhen Cheng, Di Wang

We start by giving a rigorous definition of \textit{exact} federated unlearning, which guarantees that the unlearned model is statistically indistinguishable from the one trained without the deleted data.

Federated Learning

Byzantine-Resilient Federated Learning at Edge

no code implementations18 Mar 2023 Youming Tao, Sijia Cui, Wenlu Xu, Haofei Yin, Dongxiao Yu, Weifa Liang, Xiuzhen Cheng

To address this issue, we study the stochastic convex and non-convex optimization problem for federated learning at edge and show how to handle heavy-tailed data while retaining the Byzantine resilience, communication efficiency and the optimal statistical error rates simultaneously.

Federated Learning

Modeling Sequential Recommendation as Missing Information Imputation

1 code implementation4 Jan 2023 Yujie Lin, Zhumin Chen, Zhaochun Ren, Chenyang Wang, Qiang Yan, Maarten de Rijke, Xiuzhen Cheng, Pengjie Ren

To address the limitation of sequential recommenders with side information, we define a way to fuse side information and alleviate the problem of missing side information by proposing a unified task, namely the missing information imputation (MII), which randomly masks some feature fields in a given sequence of items, including item IDs, and then forces a predictive model to recover them.

Imputation Sequential Recommendation

Federated Learning Hyper-Parameter Tuning from a System Perspective

1 code implementation24 Nov 2022 Huanle Zhang, Lei Fu, Mi Zhang, Pengfei Hu, Xiuzhen Cheng, Prasant Mohapatra, Xin Liu

In this paper, we propose FedTune, an automatic FL hyper-parameter tuning algorithm tailored to applications' diverse system requirements in FL training.

Federated Learning

Collaborative Learning in General Graphs with Limited Memorization: Complexity, Learnability, and Reliability

no code implementations29 Jan 2022 Feng Li, Xuyang Yuan, Lina Wang, Huan Yang, Dongxiao Yu, Weifeng Lv, Xiuzhen Cheng

The efficacy of our proposed three-staged collaborative learning algorithm is finally verified by extensive experiments on both synthetic and real datasets.

Memorization

Blockchain and Federated Edge Learning for Privacy-Preserving Mobile Crowdsensing

no code implementations16 Oct 2021 Qin Hu, Zhilin Wang, Minghui Xu, Xiuzhen Cheng

Mobile crowdsensing (MCS) counting on the mobility of massive workers helps the requestor accomplish various sensing tasks with more flexibility and lower cost.

Federated Learning Privacy Preserving

Nothing Wasted: Full Contribution Enforcement in Federated Edge Learning

no code implementations15 Oct 2021 Qin Hu, Shengling Wang, Zeihui Xiong, Xiuzhen Cheng

In particular, federated edge learning (FEL) becomes prominent in securing the privacy of data owners by keeping the data locally used to train ML models.

Edge-computing Fairness

DCAP: Deep Cross Attentional Product Network for User Response Prediction

1 code implementation18 May 2021 Zekai Chen, Fangtian Zhong, Zhumin Chen, Xiao Zhang, Robert Pless, Xiuzhen Cheng

Prior studies in predicting user response leveraged the feature interactions by enhancing feature vectors with products of features to model second-order or high-order cross features, either explicitly or implicitly.

Recommendation Systems

Learning Graph Structures with Transformer for Multivariate Time Series Anomaly Detection in IoT

1 code implementation8 Apr 2021 Zekai Chen, Dingshuo Chen, Xiao Zhang, Zixuan Yuan, Xiuzhen Cheng

This paper presented GTA, a new framework for multivariate time series anomaly detection that involves automatically learning a graph structure, graph convolution, and modeling temporal dependency using a Transformer-based architecture.

Anomaly Detection Time Series +1

Proof of Federated Learning: A Novel Energy-recycling Consensus Algorithm

no code implementations26 Dec 2019 Xidi Qu, Shengling Wang, Qin Hu, Xiuzhen Cheng

However, the separation between the data usufruct and ownership in Blockchain lead to data privacy leakage in model training and verification, deviating from the original intention of federal learning.

Cryptography and Security

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