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Welcome to HuangFuSL's blog

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3095. 或值至少 K 的最短子数组 I

2025-01-17

难度：简单

3097. 或值至少 K 的最短子数组 II

2025-01-17

难度：中等

3065. 超过阈值的最少操作数 I

2025-01-14

难度：简单

3066. 超过阈值的最少操作数 II

2025-01-14

难度：中等

Variational AE

2025-01-14

变分自编码器（Variational Autoencoder，VAE）的结构和AE相似，都是使用编码器对输入进行压缩，再通过解码器重建。与AE不同的是，VAE是一个生成模型而不是编码模型，它反而和GAN中的生成器是一个原理。假设数据的生成是通过一个随机分布的隐变量\(z\)控制。即首先从一个容易采样的分布\(P_\theta(z)\)中采样出\(z\)，再训练一个函数\(f(z)\)，输出条件分布\(P_\theta(x | z)\)，从其中采样得到\(x\)。据此，我们可以学习到输入数据\(x\)的概率分布\(P_\theta (x)\)，根据输入样本最大化对数似然\(\log P_\theta(x)\)。

2270. 分割数组的方案数

2025-01-13

难度：中等

2275. 按位与结果大于零的最长组

2025-01-12

难度：中等

3270. 求出数字答案

2025-01-11

难度：简单

Autoencoder

2025-01-11

自编码器是一类无监督的学习方法，可以将输入数据压缩为低维的隐向量表示。它包含两部分网络结构，即编码器和解码器。编码器将输入数据压缩为隐向量，解码器尝试将隐向量重建为对应的数据。通过最小化解码器输出和输入数据之间的差异，编码器可以学习到输入数据的压缩表示。

3298. 统计重新排列后包含另一个字符串的子字符串数目 II

2025-01-10

难度：困难

Recent updates

Currently working on

Customization

Click on the buttons to change the primary color.

Click on the buttons to change the accent color.

However, if you try to switch from dark mode to light mode or reversed, changes to the primary color and accent color will lose.

Building documentation

Run git clone https://github.com/HuangFuSL/HuangFuSL.github.io.git to get the source code.

Bootstrap icon installation

The site uses bootstrap icons, which are added as submodules in third_party/icons. You have to manually initialize the submodule.

git submodule update --recursive --remote

LaTeX support

The site uses xelatex and dvisvgm to render tex document to SVG images embedded in the markdown files. However, as the SVG images are ignored by .gitignore, you have to manually perform the conversion.

For GitHub repository clones:

  • Run git submodule update --recursive --remote to receive the template.
  • Make sure you have installed and correctly configured xelatex and dvisvgm.
  • Add ./template directory to $TEXINPUTS environmental variable.
  • Execute ci/convert.py in the root directory of the repository.
  • Run mkdocs serve to view the images.

The template is located at HuangFuSL/latex-template

GitHub workflow

You need to install the dependencies stored in requirements.txt before you can start building the site:

pip install -r requirements.txt

There are cross-links in the site which require metadata defined in the page, so the project should be built before mkdocs serve is executed. The exported metadata is saved in meta.json after a build is successfully executed. To build the site, execute the following command:

mkdocs build -d build

Execute mkdocs serve, the built site will appear at http://127.0.0.1:8000

Acknowledgements

The blog relies on the following open-source projects:

The blog uses the following mkdocs plugins to function correctly.

Unless noted, content in this blog are shared under CC-BY-NC-SA 4.0 license.

Version information

commit 65f006ca2a56c1751c67df72b38fe3b529f26c37
Merge: 425cd429 b17bbe7a
Author: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Date:   Fri Jan 17 15:21:36 2025 +0800

    Merge pull request #446 from HuangFuSL/leetcode-250117

    Update: Leetcode 250117

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