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matrix Theory

2022-autumn sysu-seit matrix theory final project

Author Email
AnnLIU15 (ZhaoY) (github.com) [email protected]
zxh1128 (github.com) [email protected]
华哥 我的超人 🙅‍♀️
炀神 真正的超人🦸
~~点解html无法在GitHub上正常显示字号和颜色捏~~

报告与PPT

git 教程

  • 每次打开项目的时候,先在terminal输入

    git pull origin master
  • 每次写完一点东西的时候,在terminal输入

    # 将所有更改提交缓存区
    git add .  
    # 将所有缓存区内的变动提交
    git commit -m "本次commit的名字"
    # 提交到远程
    git push origin master

运行方式

以fig1和fig9为例子 (需要快速运行请在yaml文件设置为 min_R = max_R)

Fig1

addpath(genpath(cd)); run("scripts/getFig1.m")

Fig9

addpath(genpath(cd)); run("scripts/getFig9.m")

项目结构

选题与需要实现的算法

Baseline/对比算法


Y. Hu, D. Zhang, J. Ye, X. Li, and X. He, “Fast and Accurate Matrix Completion via Truncated Nuclear Norm Regularization,” Ieee T Pattern Anal, vol. 35, no. 9, pp. 2117–2130, Sep. 2013.

    • TNNR-ADMM
    • TNNR-APGL
    • TNNR-ADMMAP

在我们复现的代码中,归一化会有更好的效果,Fig4~8未作归一化(结果更接近),Fig9归一化了(不想调超参了)。复现结果与作者论文展示的效果存在差异,作者参数在本复现代码中无法发挥良好,不清楚作者图像是否做了预处理,以下为一些差异:

  • 运算时间:我们的复原在运算时间上无法完成tnnr-admmap快于tnnr-admm的效果,可能是由于我们设置的$\rho_0$较为保守(按照作者的设置会发散)
  • 效果:APGL在图像复原的效果无法达到作者展示的清晰度
  • Baseline 在人工生成环境表现过好,在图像mask环境中表现较差

由于没时间了,没法调最好的超参Orz

要求

  • Write a detailed report in LaTex on your whole project, including the background, problem formulation, mathematical method(s) and solution(s), algorithm(s), simulation setting and results, discussions, and conclusions;
  • Compose a compact PPT on your report and make a presentation to your classmates if asked. The length of the PPT should be no longer than 20 slides;
  • Submit your report, PPT, and the source codes of your simulation experiments to the TA no later than December 9th, 2022.

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