Search Results for author: Lingyu Si

Found 16 papers, 8 papers with code

End-To-End Underwater Video Enhancement: Dataset and Model

1 code implementation18 Mar 2024 Dazhao Du, Enhan Li, Lingyu Si, Fanjiang Xu, Jianwei Niu

To fill this gap, we construct the Synthetic Underwater Video Enhancement (SUVE) dataset, comprising 840 diverse underwater-style videos paired with ground-truth reference videos.

Image Enhancement Video Enhancement

Self-Supervised Representation Learning with Meta Comprehensive Regularization

no code implementations3 Mar 2024 Huijie Guo, Ying Ba, Jie Hu, Lingyu Si, Wenwen Qiang, Lei Shi

Specifically, we update our proposed model through a bi-level optimization mechanism, enabling it to capture comprehensive features.

counterfactual Data Augmentation +6

FreeStyle: Free Lunch for Text-guided Style Transfer using Diffusion Models

no code implementations28 Jan 2024 Feihong He, Gang Li, Mengyuan Zhang, Leilei Yan, Lingyu Si, Fanzhang Li

In the decoder, we further modulate features from the dual streams based on a given content image and the corresponding style text prompt for precise style transfer.

Style Transfer

Rethinking Causal Relationships Learning in Graph Neural Networks

1 code implementation15 Dec 2023 Hang Gao, Chengyu Yao, Jiangmeng Li, Lingyu Si, Yifan Jin, Fengge Wu, Changwen Zheng, Huaping Liu

In order to comprehensively analyze various GNN models from a causal learning perspective, we constructed an artificially synthesized dataset with known and controllable causal relationships between data and labels.

UIEDP:Underwater Image Enhancement with Diffusion Prior

no code implementations11 Dec 2023 Dazhao Du, Enhan Li, Lingyu Si, Fanjiang Xu, Jianwei Niu, Fuchun Sun

To address this issue, we propose UIE with Diffusion Prior (UIEDP), a novel framework treating UIE as a posterior distribution sampling process of clear images conditioned on degraded underwater inputs.

Image Generation No-Reference Image Quality Assessment +1

PrototypeFormer: Learning to Explore Prototype Relationships for Few-shot Image Classification

no code implementations5 Oct 2023 Feihong He, Gang Li, Lingyu Si, Leilei Yan, Fanzhang Li, Fuchun Sun

In particular, our method achieves 97. 07% and 90. 88% on 5-way 5-shot and 5-way 1-shot tasks of miniImageNet, which surpasses the state-of-the-art results with accuracy of 7. 27% and 8. 72%, respectively.

Classification Contrastive Learning +2

Background Debiased SAR Target Recognition via Causal Interventional Regularizer

no code implementations30 Aug 2023 Hongwei Dong, Fangzhou Han, Lingyu Si, Wenwen Qiang, Lamei Zhang

Based on the constructed SCM, we propose a causal intervention based regularization method to eliminate the negative impact of background on feature semantic learning and achieve background debiased SAR-ATR.

A Dimensional Structure based Knowledge Distillation Method for Cross-Modal Learning

no code implementations28 Jun 2023 Lingyu Si, Hongwei Dong, Wenwen Qiang, Junzhi Yu, Wenlong Zhai, Changwen Zheng, Fanjiang Xu, Fuchun Sun

To address this issue, in this paper, we discover the correlation between feature discriminability and dimensional structure (DS) by analyzing and observing features extracted from simple and hard tasks.

Knowledge Distillation

Introducing Expertise Logic into Graph Representation Learning from A Causal Perspective

no code implementations20 Jan 2023 Hang Gao, Jiangmeng Li, Wenwen Qiang, Lingyu Si, Xingzhe Su, Fengge Wu, Changwen Zheng, Fuchun Sun

By further observing the ramifications of introducing expertise logic into graph representation learning, we conclude that leading the GNNs to learn human expertise can improve the model performance.

Graph Representation Learning Knowledge Graphs

Timestamp-Supervised Action Segmentation from the Perspective of Clustering

1 code implementation22 Dec 2022 Dazhao Du, Enhan Li, Lingyu Si, Fanjiang Xu, Fuchun Sun

Most existing methods generate pseudo-labels for all frames in each video to train the segmentation model.

Action Segmentation Clustering +2

Disentangle and Remerge: Interventional Knowledge Distillation for Few-Shot Object Detection from A Conditional Causal Perspective

1 code implementation26 Aug 2022 Jiangmeng Li, Yanan Zhang, Wenwen Qiang, Lingyu Si, Chengbo Jiao, Xiaohui Hu, Changwen Zheng, Fuchun Sun

To understand the reasons behind this phenomenon, we revisit the learning paradigm of knowledge distillation on the few-shot object detection task from the causal theoretic standpoint, and accordingly, develop a Structural Causal Model.

Few-Shot Learning Few-Shot Object Detection +4

Robust Causal Graph Representation Learning against Confounding Effects

1 code implementation18 Aug 2022 Hang Gao, Jiangmeng Li, Wenwen Qiang, Lingyu Si, Bing Xu, Changwen Zheng, Fuchun Sun

This observation reveals that there exist confounders in graphs, which may interfere with the model learning semantic information, and current graph representation learning methods have not eliminated their influence.

Graph Representation Learning

Do we really need temporal convolutions in action segmentation?

1 code implementation26 May 2022 Dazhao Du, Bing Su, Yu Li, Zhongang Qi, Lingyu Si, Ying Shan

Most state-of-the-art methods focus on designing temporal convolution-based models, but the inflexibility of temporal convolutions and the difficulties in modeling long-term temporal dependencies restrict the potential of these models.

Action Classification Action Segmentation +1

Bootstrapping Informative Graph Augmentation via A Meta Learning Approach

1 code implementation11 Jan 2022 Hang Gao, Jiangmeng Li, Wenwen Qiang, Lingyu Si, Fuchun Sun, Changwen Zheng

To this end, we propose a novel approach to learning a graph augmenter that can generate an augmentation with uniformity and informativeness.

Contrastive Learning Informativeness +2

SimViT: Exploring a Simple Vision Transformer with sliding windows

2 code implementations24 Dec 2021 Gang Li, Di Xu, Xing Cheng, Lingyu Si, Changwen Zheng

Although vision Transformers have achieved excellent performance as backbone models in many vision tasks, most of them intend to capture global relations of all tokens in an image or a window, which disrupts the inherent spatial and local correlations between patches in 2D structure.

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