Search Results for author: Hongxia Wang

Found 10 papers, 7 papers with code

UMMAFormer: A Universal Multimodal-adaptive Transformer Framework for Temporal Forgery Localization

1 code implementation28 Aug 2023 Rui Zhang, Hongxia Wang, Mingshan Du, Hanqing Liu, Yang Zhou, Qiang Zeng

Our approach introduces a Temporal Feature Abnormal Attention (TFAA) module based on temporal feature reconstruction to enhance the detection of temporal differences.

Binary Classification Temporal Forgery Localization +1

Phase Retrieval with Background Information: Decreased References and Efficient Methods

no code implementations16 Aug 2023 Ziyang Yuan, Haoxing Yang, Ningyi Leng, Hongxia Wang

Furthermore, two methods called Background Douglas-Rachford (BDR) and Convex Background Douglas-Rachford (CBDR) are proposed.

Retrieval

Untrained neural network embedded Fourier phase retrieval from few measurements

1 code implementation16 Jul 2023 Liyuan Ma, Hongxia Wang, Ningyi Leng, Ziyang Yuan

FPR with few measurements is important for reducing time and hardware costs, but it suffers from serious ill-posedness.

Retrieval

Regularize implicit neural representation by itself

1 code implementation CVPR 2023 Zhemin Li, Hongxia Wang, Deyu Meng

The smoothness of the Laplacian matrix is further integrated by parameterizing DE with a tiny INR.

ADMM based Fourier phase retrieval with untrained generative prior

no code implementations23 Oct 2022 Liyuan Ma, Hongxia Wang, Ningyi Leng, Ziyang Yuan

Then an untrained generative network is embedded in the iterative process of ADMM to project an estimated signal into the generative space, and the projected signal is applied to next iteration of ADMM.

Retrieval

Adaptive and Implicit Regularization for Matrix Completion

1 code implementation11 Aug 2022 Zhemin Li, Tao Sun, Hongxia Wang, Bao Wang

Theoretically, we show that the adaptive regularization of \ReTwo{AIR} enhances the implicit regularization and vanishes at the end of training.

Matrix Completion

Fisher Matrix Based Fault Detection for PMUs Data in Power Grids

no code implementations9 Aug 2022 Ke Chen, Dandan Jiang, Bo wang, Hongxia Wang

Firstly, the fault detection matrix is constructed and the event detection problem is reformatted as a two-sample covariance matrices test problem.

Event Detection Fault Detection

AIR-Net: Adaptive and Implicit Regularization Neural Network for Matrix Completion

2 code implementations12 Oct 2021 Zhemin Li, Tao Sun, Hongxia Wang, Bao Wang

Theoretically, we show that the adaptive regularization of AIR enhances the implicit regularization and vanishes at the end of training.

Matrix Completion Missing Elements

A Robust graph attention network with dynamic adjusted Graph

1 code implementation28 Sep 2020 Xianchen Zhou, Yaoyun Zeng, Hongxia Wang

Different from the original GAT, which uses the attention mechanism for different edges but is still sensitive to the perturbation, RoGAT adds an extra dynamic attention score progressively and improves the robustness.

Graph Attention

A regularized deep matrix factorized model of matrix completion for image restoration

2 code implementations29 Jul 2020 Zhemin Li, Zhi-Qin John Xu, Tao Luo, Hongxia Wang

In this work, we propose a Regularized Deep Matrix Factorized (RDMF) model for image restoration, which utilizes the implicit bias of the low rank of deep neural networks and the explicit bias of total variation.

Image Restoration Matrix Completion

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