isLouisHsu / isLouisHsu/isLouisHsu.github.io
PCA | LOUIS' BLOG
Open
Nobody has claimed this yet.
e77c7fee5ee4c3051a6ad4d24560bc35
Gitalk
- Dominant language
- HTML
- Stars
- 4
- Forks
- 1
- PR merge metrics
- No merged PRs in 30d
Description
https://louishsu.xyz/2018/10/22/PCA/
引言PCA全称Principal Component Analysis，即主成分分析，是一种常用的数据降维方法。它可以通过线性变换将原始数据变换为一组各维度线性无关的表示，以此来提取数据的主要线性分量。 向量的投影现有两个任意不共线向量$\vec{u}, \vec{v}$，将$\vec{u}$投射到$\vec{v}$上 投影后，可以得到两个正交向量 \vec{u}' · (\vec{u} - \
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue contains a PCA article excerpt and a link to the author's blog, but it does not name a repository file, test, or specific change. First clarify whether the goal is to add, correct, or migrate this content and where it belongs; completion cannot be determined from the current issue.
Written by the indexing model from the issue text.
Assessment
- Domain
- content
- Issue type
- Documentation
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100