Search Results for author: Xiang Gu

Found 9 papers, 7 papers with code

Adversarial Reweighting with $α$-Power Maximization for Domain Adaptation

1 code implementation26 Apr 2024 Xiang Gu, Xi Yu, Yan Yang, Jian Sun, Zongben Xu

To theoretically analyze our method, we deduce an upper bound of target domain expected error for PDA, which is approximately minimized in our approach.

Test-time Adaptation

Optimal Transport-Guided Conditional Score-Based Diffusion Models

1 code implementation2 Nov 2023 Xiang Gu, Liwei Yang, Jian Sun, Zongben Xu

Conditional score-based diffusion model (SBDM) is for conditional generation of target data with paired data as condition, and has achieved great success in image translation.

Image-to-Image Translation Super-Resolution +1

Keypoint-Guided Optimal Transport

2 code implementations23 Mar 2023 Xiang Gu, Yucheng Yang, Wei Zeng, Jian Sun, Zongben Xu

In this paper, we propose a novel KeyPoint-Guided model by ReLation preservation (KPG-RL) that searches for the optimal matching (i. e., transport plan) guided by the keypoints in OT.

Domain Adaptation Image-to-Image Translation +1

Generalized Semantic Segmentation by Self-Supervised Source Domain Projection and Multi-Level Contrastive Learning

1 code implementation3 Mar 2023 Liwei Yang, Xiang Gu, Jian Sun

SSDP aims to reduce domain gap by projecting data to the source domain, while MLCL is a learning scheme to learn discriminative and generalizable features on the projected data.

Contrastive Learning Domain Generalization +2

Adversarial Reweighting for Partial Domain Adaptation

1 code implementation NeurIPS 2021 Xiang Gu, Xi Yu, Yan Yang, Jian Sun, Zongben Xu

To tackle the challenge of negative domain transfer, we propose a novel Adversarial Reweighting (AR) approach that adversarially learns the weights of source domain data to align the source and target domain distributions, and the transferable deep recognition network is learned on the reweighted source domain data.

Partial Domain Adaptation

Domain-Free Adversarial Splitting for Domain Generalization

no code implementations1 Jan 2021 Xiang Gu, Jiasun Feng, Jian Sun, Zongben Xu

In this framework, we model the domain generalization as a learning problem that enforces the learner to be able to generalize well for any train/val subsets splitting of the training dataset.

Domain Generalization Meta-Learning

Spherical Space Domain Adaptation With Robust Pseudo-Label Loss

1 code implementation CVPR 2020 Xiang Gu, Jian Sun, Zongben Xu

In this paper, we propose a novel adversarial DA approach completely defined in spherical feature space, in which we define spherical classifier for label prediction and spherical domain discriminator for discriminating domain labels.

Domain Adaptation Pseudo Label

Should All Temporal Difference Learning Use Emphasis?

1 code implementation1 Mar 2019 Xiang Gu, Sina Ghiassian, Richard S. Sutton

ETD was proposed mainly to address convergence issues of conventional Temporal Difference (TD) learning under off-policy training but it is different from conventional TD learning even under on-policy training.

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