Search Results for author: Chao Zhou

Found 16 papers, 3 papers with code

Robust lEarned Shrinkage-Thresholding (REST): Robust unrolling for sparse recover

no code implementations20 Oct 2021 Wei Pu, Chao Zhou, Yonina C. Eldar, Miguel R. D. Rodrigues

In this paper, we consider deep neural networks for solving inverse problems that are robust to forward model mis-specifications.

Compressive Sensing

Mean Field Portfolio Games in Incomplete Markets: Nonconstant Equilibria Do Not Exist in $L^\infty$

no code implementations11 Jun 2021 Guanxing Fu, Chao Zhou

We study mean field portfolio games in incomplete markets with random market parameters, where each player is concerned with not only her own wealth but also the relative performance to her competitors.

The Discovery of Dynamics via Linear Multistep Methods and Deep Learning: Error Estimation

no code implementations21 Mar 2021 Qiang Du, Yiqi Gu, Haizhao Yang, Chao Zhou

We put forward error estimates for these methods using the approximation property of deep networks.

Relative wealth concerns with partial information and heterogeneous priors

no code implementations23 Jul 2020 Chao Deng, Xizhi Su, Chao Zhou

We observe that the agent with the most accurate prior estimate is likely to lead the herd, and the effect of competition on heterogeneous agents varies more with market characteristics compared to the homogeneous case.

Hyperspectral Unmixing Network Inspired by Unfolding an Optimization Problem

no code implementations21 May 2020 Chao Zhou

We first consider a linear mixture model with sparsity constraint, then we unfold Alternating Direction Method of Multipliers (ADMM) algorithm to construct the unmixing network structures.

Hyperspectral Unmixing

Deep learning for smart fish farming: applications, opportunities and challenges

no code implementations6 Apr 2020 Xinting Yang, Song Zhang, Jintao Liu, Qinfeng Gao, Shuanglin Dong, Chao Zhou

This change can create new opportunities and a series of challenges for information and data processing in smart fish farming.

Decision Making

Balance Between Efficient and Effective Learning: Dense2Sparse Reward Shaping for Robot Manipulation with Environment Uncertainty

no code implementations5 Mar 2020 Yongle Luo, Kun Dong, Lili Zhao, Zhiyong Sun, Chao Zhou, Bo Song

The experiment results show that the Dense2Sparse method obtained higher expected reward compared with the ones using standalone dense reward or sparse reward, and it also has a superior tolerance of system uncertainty.

Lifetime Ruin under High-watermark Fees and Drift Uncertainty

no code implementations3 Sep 2019 Junbeom Lee, Xiang Yu, Chao Zhou

This paper aims to make a new contribution to the study of lifetime ruin problem by considering investment in two hedge funds with high-watermark fees and drift uncertainty.

Dimensionality Reduction

Comyco: Quality-Aware Adaptive Video Streaming via Imitation Learning

1 code implementation6 Aug 2019 Tianchi Huang, Chao Zhou, Rui-Xiao Zhang, Chenglei Wu, Xin Yao, Lifeng Sun

Using trace-driven and real-world experiments, we demonstrate significant improvements of Comyco's sample efficiency in comparison to prior work, with 1700x improvements in terms of the number of samples required and 16x improvements on training time required.

Imitation Learning

Pressure Predictions of Turbine Blades with Deep Learning

no code implementations12 Jun 2018 Cheng'an Bai, Chao Zhou

Deep learning has been used in many areas, such as feature detections in images and the game of go.

Game of Go

Unsupervised Learning of Stereo Matching

no code implementations ICCV 2017 Chao Zhou, Hong Zhang, Xiaoyong Shen, Jiaya Jia

However, due to the limitations of these datasets and the difficulty of collecting new stereo data, current methods fail in real-life cases.

Stereo Matching Stereo Matching Hand

Zero-order Reverse Filtering

1 code implementation ICCV 2017 Xin Tao, Chao Zhou, Xiaoyong Shen, Jue Wang, Jiaya Jia

In this paper, we study an unconventional but practically meaningful reversibility problem of commonly used image filters.

High-Quality Correspondence and Segmentation Estimation for Dual-Lens Smart-Phone Portraits

no code implementations ICCV 2017 Xiaoyong Shen, Hongyun Gao, Xin Tao, Chao Zhou, Jiaya Jia

Estimating correspondence between two images and extracting the foreground object are two challenges in computer vision.

Binary Funding Impacts in Derivative Valuation

no code implementations1 Mar 2017 Junbeom Lee, Chao Zhou

It is often believed that considering both DVA and funding benefits results in a double-counting issue but it will be shown that the two components are affected by different mathematical structures of derivative transactions.

Mutual-Structure for Joint Filtering

no code implementations ICCV 2015 Xiaoyong Shen, Chao Zhou, Li Xu, Jiaya Jia

Previous joint/guided filters directly transfer the structural information in the reference image to the target one.

Depth Completion Image Enhancement +3

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