Search Results for author: Zhenghao Chen

Found 14 papers, 3 papers with code

Peer-aided Repairer: Empowering Large Language Models to Repair Advanced Student Assignments

no code implementations2 Apr 2024 Qianhui Zhao, Fang Liu, Li Zhang, Yang Liu, Zhen Yan, Zhenghao Chen, Yufei Zhou, Jing Jiang, Ge Li

Automated generation of feedback on programming assignments holds significant benefits for programming education, especially when it comes to advanced assignments.

Language Modelling Large Language Model +1

UFDA: Universal Federated Domain Adaptation with Practical Assumptions

no code implementations27 Nov 2023 Xinhui Liu, Zhenghao Chen, Luping Zhou, Dong Xu, Wei Xi, Gairui Bai, Yihan Zhao, Jizhong Zhao

Conventional Federated Domain Adaptation (FDA) approaches usually demand an abundance of assumptions, which makes them significantly less feasible for real-world situations and introduces security hazards.

Domain Adaptation

Neural Vector Fields: Generalizing Distance Vector Fields by Codebooks and Zero-Curl Regularization

no code implementations4 Sep 2023 Xianghui Yang, Guosheng Lin, Zhenghao Chen, Luping Zhou

Recent neural networks based surface reconstruction can be roughly divided into two categories, one warping templates explicitly and the other representing 3D surfaces implicitly.

Surface Reconstruction

Neural Vector Fields: Implicit Representation by Explicit Learning

2 code implementations CVPR 2023 Xianghui Yang, Guosheng Lin, Zhenghao Chen, Luping Zhou

Deep neural networks (DNNs) are widely applied for nowadays 3D surface reconstruction tasks and such methods can be further divided into two categories, which respectively warp templates explicitly by moving vertices or represent 3D surfaces implicitly as signed or unsigned distance functions.

Quantization Surface Reconstruction

Improving RGB-D Point Cloud Registration by Learning Multi-scale Local Linear Transformation

1 code implementation31 Aug 2022 ZiMing Wang, Xiaoliang Huo, Zhenghao Chen, Jing Zhang, Lu Sheng, Dong Xu

In addition to previous methods that seek correspondences by hand-crafted or learnt geometric features, recent point cloud registration methods have tried to apply RGB-D data to achieve more accurate correspondence.

Point Cloud Registration

LSVC: A Learning-Based Stereo Video Compression Framework

no code implementations CVPR 2022 Zhenghao Chen, Guo Lu, Zhihao Hu, Shan Liu, Wei Jiang, Dong Xu

In this work, we propose the first end-to-end optimized framework for compressing automotive stereo videos (i. e., stereo videos from autonomous driving applications) from both left and right views.

Autonomous Driving Motion Compensation +1

Improving Facial Attribute Recognition by Group and Graph Learning

no code implementations28 May 2021 Zhenghao Chen, Shuhang Gu, Feng Zhu, Jing Xu, Rui Zhao

For the spatial correlation, we aggregate attributes with spatial similarity into a part-based group and then introduce a Group Attention Learning to generate the group attention and the part-based group feature.

Attribute Graph Learning

Improving Deep Video Compression by Resolution-adaptive Flow Coding

no code implementations ECCV 2020 Zhihao Hu, Zhenghao Chen, Dong Xu, Guo Lu, Wanli Ouyang, Shuhang Gu

In this work, we propose a new framework called Resolution-adaptive Flow Coding (RaFC) to effectively compress the flow maps globally and locally, in which we use multi-resolution representations instead of single-resolution representations for both the input flow maps and the output motion features of the MV encoder.

Optical Flow Estimation Video Compression

Composition and decomposition of GANs

no code implementations23 Jan 2019 Yeu-Chern Harn, Zhenghao Chen, Vladimir Jojic

In this work, we propose a composition/decomposition framework for adversarially training generative models on composed data - data where each sample can be thought of as being constructed from a fixed number of components.

Visual Analytics of Movement Pattern Based on Time-Spatial Data: A Neural Net Approach

no code implementations9 Jul 2017 Zhenghao Chen, Jianlong Zhou, Xiuying Wang

This method aggregates three main parts that are Back-end Data Model, Neural Net Algorithm including clustering method Self-Organizing Map (SOM) and prediction approach Recurrent Neural Net (RNN) for ex- tracting the features and lastly a solid front-end that displays the results to users with an interactive system.

Clustering Management +1

Tuned Models of Peer Assessment in MOOCs

no code implementations9 Jul 2013 Chris Piech, Jonathan Huang, Zhenghao Chen, Chuong Do, Andrew Ng, Daphne Koller

In massive open online courses (MOOCs), peer grading serves as a critical tool for scaling the grading of complex, open-ended assignments to courses with tens or hundreds of thousands of students.

Sparse Filtering

no code implementations NeurIPS 2011 Jiquan Ngiam, Zhenghao Chen, Sonia A. Bhaskar, Pang W. Koh, Andrew Y. Ng

Unsupervised feature learning has been shown to be effective at learning representations that perform well on image, video and audio classification.

Audio Classification General Classification

Tiled convolutional neural networks

no code implementations NeurIPS 2010 Jiquan Ngiam, Zhenghao Chen, Daniel Chia, Pang W. Koh, Quoc V. Le, Andrew Y. Ng

Using convolutional (tied) weights significantly reduces the number of parameters that have to be learned, and also allows translational invariance to be hard-coded into the architecture.

Object Recognition

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