通信运营商每时每刻会产生大量的通信数据，例如通话记录，短信记录，彩信记录，第三方服务资费等等繁多信息。数据量如此巨大，除了要满足用户的实时查询和展示之外，还需要定时定期的对已有数据进行离线的分析处理。例如，当日话单，月度话单，季度话单，年度话单，通话详情，通话记录等等。我们以此为背景，寻找一个切入点，学习其中的方法论。当前我们的需求是：统计每天、每月以及每年的每个人的通话次数及时长。
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.
