Search Results for author: Ziyi Zhang

Found 10 papers, 2 papers with code

Confronting Reward Overoptimization for Diffusion Models: A Perspective of Inductive and Primacy Biases

no code implementations13 Feb 2024 Ziyi Zhang, Sen Zhang, Yibing Zhan, Yong Luo, Yonggang Wen, DaCheng Tao

Then, we surprisingly discover that dormant neurons in our critic model act as a regularization against overoptimization, while active neurons reflect primacy bias in this setting.

Denoising Inductive Bias

Learning Robust Generalizable Radiance Field with Visibility and Feature Augmented Point Representation

no code implementations25 Jan 2024 Jiaxu Wang, Ziyi Zhang, Renjing Xu

Experiments show that our model can deliver better geometries, view consistencies, and rendering quality than all counterparts and benchmarks on three datasets in both generalization and finetuning settings, preliminarily proving the potential of the new paradigm for generalizable NeRF.

Neural Rendering

GRACE: Loss-Resilient Real-Time Video through Neural Codecs

no code implementations21 May 2023 Yihua Cheng, Ziyi Zhang, Hanchen Li, Anton Arapin, Yue Zhang, Qizheng Zhang, YuHan Liu, Xu Zhang, Francis Y. Yan, Amrita Mazumdar, Nick Feamster, Junchen Jiang

In real-time video communication, retransmitting lost packets over high-latency networks is not viable due to strict latency requirements.

RankMatch: Fostering Confidence and Consistency in Learning with Noisy Labels

no code implementations ICCV 2023 Ziyi Zhang, Weikai Chen, Chaowei Fang, Zhen Li, Lechao Chen, Liang Lin, Guanbin Li

Confidence-wise, we propose a novel sample selection strategy based on confidence representation voting instead of the widely-used small-loss criterion.

Learning with noisy labels Representation Learning +1

Divide and Contrast: Source-free Domain Adaptation via Adaptive Contrastive Learning

2 code implementations12 Nov 2022 Ziyi Zhang, Weikai Chen, Hui Cheng, Zhen Li, Siyuan Li, Liang Lin, Guanbin Li

We investigate a practical domain adaptation task, called source-free domain adaptation (SFUDA), where the source-pretrained model is adapted to the target domain without access to the source data.

Contrastive Learning Source-Free Domain Adaptation

Dite-HRNet: Dynamic Lightweight High-Resolution Network for Human Pose Estimation

1 code implementation22 Apr 2022 Qun Li, Ziyi Zhang, Fu Xiao, Feng Zhang, Bir Bhanu

A high-resolution network exhibits remarkable capability in extracting multi-scale features for human pose estimation, but fails to capture long-range interactions between joints and has high computational complexity.

Pose Estimation Vocal Bursts Intensity Prediction

BagPipe: Accelerating Deep Recommendation Model Training

no code implementations24 Feb 2022 Saurabh Agarwal, Chengpo Yan, Ziyi Zhang, Shivaram Venkataraman

Based on these insights, we develop Bagpipe, a system for training deep recommendation models that uses caching and prefetching to overlap remote embedding accesses with the computation.

An Augmented Reality Platform for Introducing Reinforcement Learning to K-12 Students with Robots

no code implementations10 Oct 2021 Ziyi Zhang, Samuel Micah Akai-Nettey, Adonai Addo, Chris Rogers, Jivko Sinapov

To create a common ground between the human and the learning robot, in this paper, we propose an Augmented Reality (AR) system that reveals the hidden state of the learning to the human users.

reinforcement-learning Reinforcement Learning (RL)

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