Search Results for author: Chunxia Zhang

Found 13 papers, 4 papers with code

Seismic First Break Picking in a Higher Dimension Using Deep Graph Learning

no code implementations12 Apr 2024 Hongtao Wang, Li Long, Jiangshe Zhang, Xiaoli Wei, Chunxia Zhang, Zhenbo Guo

Addressing this, we propose a novel approach using deep graph learning called DGL-FB, constructing a large graph to efficiently extract information.

Graph Learning

Robust Few-Shot Named Entity Recognition with Boundary Discrimination and Correlation Purification

1 code implementation13 Dec 2023 Xiaojun Xue, Chunxia Zhang, Tianxiang Xu, Zhendong Niu

However, the present few-shot NER models assume that the labeled data are all clean without noise or outliers, and there are few works focusing on the robustness of the cross-domain transfer learning ability to textual adversarial attacks in Few-shot NER.

Adversarial Attack Entity Typing +6

Seismic Data Interpolation based on Denoising Diffusion Implicit Models with Resampling

no code implementations9 Jul 2023 Xiaoli Wei, Chunxia Zhang, Hongtao Wang, Chengli Tan, Deng Xiong, Baisong Jiang, Jiangshe Zhang, Sang-Woon Kim

The model training is established on the denoising diffusion probabilistic model, where U-Net is equipped with the multi-head self-attention to match the noise in each step.

Denoising Uncertainty Quantification

MSSPN: Automatic First Arrival Picking using Multi-Stage Segmentation Picking Network

no code implementations7 Sep 2022 Hongtao Wang, Jiangshe Zhang, Xiaoli Wei, Chunxia Zhang, Zhenbo Guo, Li Long, Yicheng Wang

Besides, since the gather data is a set of signals which are greatly different from the natural images, it is difficult for the current method to solve the FAT picking problem in case of a low Signal to Noise Ratio (SNR).

Deep Gradient Projection Networks for Pan-sharpening

1 code implementation CVPR 2021 Shuang Xu, Jiangshe Zhang, Zixiang Zhao, Kai Sun, Junmin Liu, Chunxia Zhang

Specifically, two optimization problems regularized by the deep prior are formulated, and they are separately responsible for the generative models for panchromatic images and low resolution multispectral images.

Towards Reducing Severe Defocus Spread Effects for Multi-Focus Image Fusion via an Optimization Based Strategy

1 code implementation29 Dec 2020 Shuang Xu, Lizhen Ji, Zhe Wang, Pengfei Li, Kai Sun, Chunxia Zhang, Jiangshe Zhang

According to the idea that each local region in the fused image should be similar to the sharpest one among source images, this paper presents an optimization-based approach to reduce defocus spread effects.

SSIM

When Image Decomposition Meets Deep Learning: A Novel Infrared and Visible Image Fusion Method

no code implementations2 Sep 2020 Zixiang Zhao, Jiangshe Zhang, Shuang Xu, Kai Sun, Chunxia Zhang, Junmin Liu

The core idea is that the encoder decomposes an image into base and detail feature maps with low- and high-frequency information, respectively, and that the decoder is responsible for the original image reconstruction.

Image Enhancement Image Reconstruction +1

Efficient and Model-Based Infrared and Visible Image Fusion Via Algorithm Unrolling

no code implementations12 May 2020 Zixiang Zhao, Shuang Xu, Jiangshe Zhang, Chengyang Liang, Chunxia Zhang, Junmin Liu

The proposed AUIF model starts with the iterative formulas of two traditional optimization models, which are established to accomplish two-scale decomposition, i. e., separating low-frequency base information and high-frequency detail information from source images.

Infrared And Visible Image Fusion Rolling Shutter Correction

MFFW: A new dataset for multi-focus image fusion

no code implementations12 Feb 2020 Shuang Xu, Xiaoli Wei, Chunxia Zhang, Junmin Liu, Jiangshe Zhang

It is found that current methods are evaluated on simulated image sets or Lytro dataset.

Pruning variable selection ensembles

no code implementations26 Apr 2017 Chunxia Zhang, Yilei Wu, Mu Zhu

In the context of variable selection, ensemble learning has gained increasing interest due to its great potential to improve selection accuracy and to reduce false discovery rate.

Ensemble Learning Variable Selection

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