24 posts tagged with "AI"

Introduction​

"Entities should not be multiplied without necessity" -- Ockham's Razor Principle

Graph Theory is a mathematical foundational theory that has been severely underestimated by the public. It doesn't study images, pictures, or charts, but rather an abstract and simple mathematical theory. The graph in graph theory is an abstract concept, very similar to a relationship network, with corresponding nodes (or vertices), and associative relationships or edges between nodes. Graph theory concepts are very simple: graphs, nodes, and edges. This article will briefly introduce basic concepts of graph theory and its applications in the real world. (Note! This is not a scientific paper, so there won't be boring mathematical formulas - please enjoy reading)

Graph Theory Overview​

In graph theory, there are three important concepts:

1. Node: Can be understood as an entity, such as Zhang San, Li Si, Wang Wu in a relationship network;
2. Edge: Can be understood as relationships between entities, for example, Zhang San and Li Si are husband and wife, Wang Wu is their son;
3. Graph: Can be understood as the collection of all nodes and edges, such as the happy family composed of Zhang San, Li Si, and Wang Wu.

From these three basic concepts, we can infer relationships between nodes. For example, Li Si's older brother Li Yi would be Wang Wu's uncle, and Wang Wu would be his nephew.

Introduction​

Data Analytics and Business Intelligence are important business modules for many enterprises to implement digital strategies. We previously introduced indispensable parts of the data field in 《浅谈数据：数据领域需要掌握些什么？》, namely software tool auxiliary services in architecture and processes. The open source data analysis platform Apache Superset introduced in this article can provide such services. This article will briefly introduce how to install, deploy, and use Superset.

Superset Introduction​

Superset is an open source self-service data analytics platform incubated by the Apache Foundation. It can be seen as an open source version of Power BI or Tableau, though Superset's interactive interface is limited to Web. The entire system is based on Python Flask and integrates with mainstream relational databases like MySQL, Postgres, SQL Server, as well as modern databases like ElasticSearch, ClickHouse, Snowflake. The frontend visualization analysis interface is very similar to Power BI and Tableau, with relatively simple operations. Therefore, if you need to build an enterprise-level data analytics platform like Power BI or Tableau without spending money, Superset is an excellent choice.

Introduction​

GitHub Actions is the official CI/CD workflow service provided by GitHub. It is aimed at making it easy for open-source project contributors to manage operational maintenance, and enable open-source communities to embrace cloud-native DevOps. GitHub Actions is integrated into most of my open-source projects including Crawlab and ArtiPub. As a contributor, I think GitHub Actions is not only easy to use, but also free (which is the most important). Therefore, I hope this article will allow open-source project contributors who are not familiar with GitHub Actions, to really get ideas on how to utilize it and make an impact.

Starting from documentation​

For those who are not familiar with GitHub Actions, it is strongly recommended that you read the official documentation first, where you can find Introduction Video, Quick Start, Examples, concepts, how it works, etc. If you read through the docs, you can easily do GitHub DevOps with your own experience in CI/CD. References of all codes in this article can be found on the official documentation,

Ideas​

Let's first figure out what we would like to implement, i.e. using GitHub Actions to run a web crawler to get daily ranking from GitHub Trending.

Introduction​

A bad plan is better than no plan.

坏计划也好过没有计划。--彼得·蒂尔《从0到1》

In software development engineering, there are rarely lone wolf programmers. This is because modern, commonly seen software projects are usually very complex, requiring substantial human resources, resources, and time. Having a single developer complete a large software project alone would be like "an old man moving mountains." Therefore, software development is inseparable from team collaboration and project management. Project Management, simply put, is a methodology for orderly organizing, planning, executing, and completing various tasks in a project. Of course, the actual scope of project management goes far beyond this, usually involving resource allocation, priority setting, progress tracking, etc. It's a product of the Industrial Revolution and a branch of modern management science that can significantly improve engineering completion efficiency and success rates. This article mainly discusses software project management, which is very different from traditional project management in construction engineering, mechanical engineering, etc. Early IT project management borrowed from traditional project management methodologies like construction engineering, playing an important role in the early information age and significantly improving software development and collaboration efficiency. However, with the rapid development of the IT industry, consumer product demands change rapidly, and market conditions have become increasingly volatile. Traditional software project management models can no longer meet software development needs. Therefore, modern software development models, such as Agile Development, emerged and became the preferred choice for many internet companies.

What are the drawbacks of traditional project management models (such as waterfall)? What improvements do modern project management models (such as agile) offer? Should we completely abandon waterfall models and fully embrace agile development? As a programmer, should you master some project management knowledge and related tools? As a team leader, how should you establish project management processes to ensure development efficiency and quality? If readers have similar questions, this article will provide detailed analysis and answers.