Compiling Custom LEDE Firmware for K2 Router Using GitHub Actions

2020年3月16日

| Technology

I’ve been using LEDE OpenWRT firmware as my router’s firmware. Due to version updates, some software is missing in older versions, so I decided to compile a custom firmware containing only the needed software for my Phicomm K2 router.……

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Use Python to set image background color to transparent

2020年1月12日

| Technology

Since the original logo has a white background, and we need to change the white background to transparent, here we use the versatile Python tool for image conversion, specifically the pillow package’s Image.……

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Application of Python Implementation of Gradient Descent in Practice

2020年1月8日

| Technology

Gradient descent is a first-order optimization algorithm, commonly called the steepest descent method. To find a local minimum of a function using gradient descent, one must iteratively move from the current point in the opposite direction of the gradient (or approximate gradient) by a specified step size.……

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Mining Monero on MinerGate Pool Using CPUMiner-Multi on CentOS7

2020年1月7日

| Technology

Too many idle servers collecting dust. Here is an option to make use of idle VPS. Today I will teach you how to use CPUMiner-Multi on CentOS for mining and earn some cryptocurrency. Monero is currently the most profitable cryptocurrency, so we choose Monero.……

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git push update rejected because the remote repository contains commits not present locally

2020年1月6日

| Technology

After improving a Hugo theme used by this blog, an error occurred when pushing to the git repository.……

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Decision Trees in Machine Learning and Python Examples

2020年1月4日

| Technology

A tree in real life has many branches and leaves. In fact, the concept of trees is widely used in machine learning, covering classification and regression. In decision analysis, decision trees are used to visually represent and make decisions. As the name implies, a decision tree is a tree-shaped decision model.……

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The Mathematical Principles Behind PCA and Python Example Demonstration

2020年1月3日

| Technology

This article introduces a very important dimensionality reduction method in machine learning—Principal Component Analysis.……

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Explanation of bit, byte, Bps, bps, kbps, Bps, Gbps, pps and other bit/byte network speed units

2020年1月2日

| Technology

It is always known that bit and byte are two concepts, one is binary digit, and the other is a byte unit consisting of 8 bits. However, in practical situations, people still confuse bit and byte in various network speed abbreviations. This article summarizes the knowledge I found.……

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Statistical Skew Distributions Reveal Statistical Traps in Life

2019年12月27日

| Technology

90% of drivers believe their driving skills are above average, 90% think their IQ is above the average IQ of the population, and the key is this can actually be consistent with real data — it’s true and not fabricated.……

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Command-line UI tool for monitoring computer CPU: s-tui

2019年12月23日

| Technology

s-tui is a free and open-source command-line UI tool for monitoring computer CPU. It can monitor CPU temperature, frequency, etc. in real-time and display it graphically. This is a Python tool that can be installed via pip, but requires root permissions. It can be used via SSH login to monitor CPU status graphically.……

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Installing ffmpeg on CentOS 7 and Streaming Movies on Douyu

2019年12月9日

| Technology

Getting back on track, today’s tutorial by Chunjiang Muker shows how to automatically stream Douyu live on CentOS 7 to achieve 24/7 uninterrupted streaming.……

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How to Use Tongji University Public Mirror for CentOS

2019年12月8日

| Technology

A few days ago on WeChat, I discovered that Tongji University actually has its own open source software mirror site. Our lab servers are still using Alibaba Cloud’s CentOS 7 mirror. Wouldn’t it be much faster if we switched to the university’s mirror? So how to change CentOS 7 public repo to Tongji University’s mirror?……

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分类 Technology 中的文章

Compiling Custom LEDE Firmware for K2 Router Using GitHub Actions

Use Python to set image background color to transparent

Application of Python Implementation of Gradient Descent in Practice

Mining Monero on MinerGate Pool Using CPUMiner-Multi on CentOS7

git push update rejected because the remote repository contains commits not present locally

Decision Trees in Machine Learning and Python Examples

The Mathematical Principles Behind PCA and Python Example Demonstration

Explanation of bit, byte, Bps, bps, kbps, Bps, Gbps, pps and other bit/byte network speed units

Statistical Skew Distributions Reveal Statistical Traps in Life

Command-line UI tool for monitoring computer CPU: s-tui

Installing ffmpeg on CentOS 7 and Streaming Movies on Douyu

How to Use Tongji University Public Mirror for CentOS

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