Search Results for author: Zezhong Zhang

Found 15 papers, 1 papers with code

Fast and Accurate Cooperative Radio Map Estimation Enabled by GAN

no code implementations5 Feb 2024 Zezhong Zhang, Guangxu Zhu, Junting Chen, Shuguang Cui

In the 6G era, real-time radio resource monitoring and management are urged to support diverse wireless-empowered applications.

Generative Adversarial Network Management

Improving the Expressive Power of Deep Neural Networks through Integral Activation Transform

no code implementations19 Dec 2023 Zezhong Zhang, Feng Bao, Guannan Zhang

The impressive expressive power of deep neural networks (DNNs) underlies their widespread applicability.

Knowledge Base Enabled Semantic Communication: A Generative Perspective

no code implementations21 Nov 2023 Jinke Ren, Zezhong Zhang, Jie Xu, GuanYing Chen, Yaping Sun, Ping Zhang, Shuguang Cui

Semantic communication is widely touted as a key technology for propelling the sixth-generation (6G) wireless networks.

Diffusion-Model-Assisted Supervised Learning of Generative Models for Density Estimation

no code implementations22 Oct 2023 Yanfang Liu, Minglei Yang, Zezhong Zhang, Feng Bao, Yanzhao Cao, Guannan Zhang

Unlike existing diffusion models that train neural networks to learn the score function, we develop a training-free score estimation method.

Density Estimation

An Ensemble Score Filter for Tracking High-Dimensional Nonlinear Dynamical Systems

1 code implementation2 Sep 2023 Feng Bao, Zezhong Zhang, Guannan Zhang

A major drawback of existing filtering methods, e. g., particle filters or ensemble Kalman filters, is the low accuracy in handling high-dimensional and highly nonlinear problems.

Practical Batch Bayesian Sampling Algorithms for Online Adaptive Traffic Experimentation

no code implementations24 May 2023 Zezhong Zhang, Ted Yuan

As new web algorithms proliferate, experimentation platform faces an increasing demand on the velocity of online experiments, which encourages adaptive traffic testing methods to speed up identifying best variant by efficiently allocating traffic.

Thompson Sampling

TransNet: Transferable Neural Networks for Partial Differential Equations

no code implementations27 Jan 2023 Zezhong Zhang, Feng Bao, Lili Ju, Guannan Zhang

Transfer learning for partial differential equations (PDEs) is to develop a pre-trained neural network that can be used to solve a wide class of PDEs.

Transfer Learning

Clustering-based Imputation for Dropout Buyers in Large-scale Online Experimentation

no code implementations9 Sep 2022 Sumin Shen, Huiying Mao, Zezhong Zhang, Zili Chen, Keyu Nie, Xinwei Deng

In online experimentation, appropriate metrics (e. g., purchase) provide strong evidence to support hypotheses and enhance the decision-making process.

Clustering Decision Making +1

Merchandise Recommendation for Retail Events with Word Embedding Weighted Tf-idf and Dynamic Query Expansion

no code implementations18 Aug 2022 Ted Tao Yuan, Zezhong Zhang

To recommend relevant merchandises for seasonal retail events, we rely on item retrieval from marketplace inventory.

Retrieval

Low-Latency Cooperative Spectrum Sensing via Truncated Vertical Federated Learning

no code implementations7 Aug 2022 Zezhong Zhang, Guangxu Zhu, Shuguang Cui

To accelerate the training process, we propose a truncated vertical federated learning (T-VFL) algorithm, where the training latency is highly reduced by integrating the standard VFL algorithm with a channel-aware user scheduling policy.

Scheduling Vertical Federated Learning

Accelerating Federated Edge Learning via Topology Optimization

no code implementations1 Apr 2022 Shanfeng Huang, Zezhong Zhang, Shuai Wang, Rui Wang, Kaibin Huang

In this paper, a novel topology-optimized federated edge learning (TOFEL) scheme is proposed to tackle the heterogeneity issue in federated learning and to improve the communication-and-computation efficiency.

3D Object Detection Federated Learning +3

Turning Channel Noise into an Accelerator for Over-the-Air Principal Component Analysis

no code implementations20 Apr 2021 Zezhong Zhang, Guangxu Zhu, Rui Wang, Vincent K. N. Lau, Kaibin Huang

The novelty of this design lies in exploiting channel noise to accelerate the descent in the region around each saddle point encountered by gradient descent, thereby increasing the convergence speed of over-the-air PCA.

Data Compression

Moving Metric Detection and Alerting System at eBay

no code implementations6 Apr 2020 Zezhong Zhang, Keyu Nie, Ted Tao Yuan

At eBay, there are thousands of product health metrics for different domain teams to monitor.

Anomaly Detection Retrieval +1

An Introduction to Communication Efficient Edge Machine Learning

no code implementations3 Dec 2019 Qiao Lan, Zezhong Zhang, Yuqing Du, Zhenyi Lin, Kaibin Huang

The main theme in the area is to design new communication techniques and protocols for efficient implementation of different distributed learning frameworks (i. e., federated learning) in wireless networks.

Information Theory Signal Processing Information Theory

Efficient Multivariate Bandit Algorithm with Path Planning

no code implementations6 Sep 2019 Keyu Nie, Zezhong Zhang, Ted Tao Yuan, Rong Song, Pauline Berry Burke

In this paper, we solve the arms exponential exploding issue in multivariate Multi-Armed Bandit (Multivariate-MAB) problem when the arm dimension hierarchy is considered.

Thompson Sampling

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