Search Results for author: Zheng Wei

Found 7 papers, 0 papers with code

Feature Selection Based on Orthogonal Constraints and Polygon Area

no code implementations25 Feb 2024 Zhenxing Zhang, Jun Ge, Zheng Wei, Chunjie Zhou, Yilei Wang

To address this problem, this paper introduces a novel orthogonal regression model incorporating the area of a polygon.

Dimensionality Reduction feature selection

Hetero$^2$Net: Heterophily-aware Representation Learning on Heterogenerous Graphs

no code implementations18 Oct 2023 Jintang Li, Zheng Wei, Jiawang Dan, Jing Zhou, Yuchang Zhu, Ruofan Wu, Baokun Wang, Zhang Zhen, Changhua Meng, Hong Jin, Zibin Zheng, Liang Chen

Through in-depth investigations on several real-world heterogeneous graphs exhibiting varying levels of heterophily, we have observed that heterogeneous graph neural networks (HGNNs), which inherit many mechanisms from GNNs designed for homogeneous graphs, fail to generalize to heterogeneous graphs with heterophily or low level of homophily.

Node Classification Representation Learning

One-Bit Matrix Completion with Differential Privacy

no code implementations2 Oct 2021 Zhengpin Li, Zheng Wei, Zengfeng Huang, Xiaojun Mao, Jian Wang

In this paper, we propose a unified framework for ensuring a strong privacy guarantee of one-bit matrix completion with DP.

Collaborative Filtering Matrix Completion +2

Applying Differential Privacy to Tensor Completion

no code implementations1 Oct 2021 Zheng Wei, Zhengpin Li, Xiaojun Mao, Jian Wang

Tensor completion aims at filling the missing or unobserved entries based on partially observed tensors.

Tensor Decomposition

SAM: A Self-adaptive Attention Module for Context-Aware Recommendation System

no code implementations1 Oct 2021 Jiabin Liu, Zheng Wei, Zhengpin Li, Xiaojun Mao, Jian Wang, Zhongyu Wei, Qi Zhang

In this work, we propose a novel and general self-adaptive module, the Self-adaptive Attention Module (SAM), which adjusts the selection bias by capturing contextual information based on its representation.

Recommendation Systems Representation Learning +1

ADCC: An Effective and Intelligent Attention Dense Color Constancy System for Studying Images in Smart Cities

no code implementations17 Nov 2019 Yilang Zhang, Neal N. Xiong, Zheng Wei, Xin Yuan, Jian Wang

The augmented images help to tell apart the edge gradients, edge pixels and non-edge ones in log-histogram, which contribute significantly to the feature extraction and color-ambiguity elimination, thereby advancing the accuracy of illuminant estimation.

Color Constancy

Parallel Markov Chain Monte Carlo for Bayesian Hierarchical Models with Big Data, in Two Stages

no code implementations16 Dec 2017 Zheng Wei, Erin M. Conlon

Thus, parallel Bayesian MCMC methods that take into account the structure of the model and split the full data set by groups rather than by observations are a more natural approach for analysis.

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