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The true sign of intelligence is not knowledge, but imagination

Efficient Inference in Fully Connected CRFs with Gaussian Edge Potentials

2020

15

Jan

It’s 2020 now! I am going to pick up paper reading just for fun (better than playing video games and watching TV all night lol)! This is a paper from 2012 and my friend recommended it to me. It’s a great example of how to bridge different mathematical skills (including MAP, CRF, optimization, sampling theorem) to make a great model. Although I still cannot fully understand all the details, reading this paper can serve as a good training of how to extract important takeaways and plan the next rea... 2871

Research Machine Learning Paper Note


Dancing Lights with Raspberry PI

2019

7

Sep

  It has been a long time since last time I posted a blog. I recently joined Google and work on Google Analytics. Feel welcome to send me a resume if you are interested in joining us or joining Alphabet. When I am decorating my new apartment, I feel like the wall is so empty and I didn’t get enough light from IKEA’s lamp. So I decided to build a light with a light strip which can control with my Raspberry Pi.  I brought the strip (WS2812B) on Amazon and this post is super-useful on setting up th... 3133

Engineering RaspberryPi


Host your own broadcast

2019

6

Feb

Recently I want to host my own broadcast on-air. After some digging, I found this repository is a very useful tool for the beginners. Here are some notes that I want to keep: RTMP (Adobe Real-Time Messaging Protocol): [+]: low latency, almost real-time [-]: need Flash support HLS (Http Live Streaming): Slice, store and serve continuous pieces collected from RTMP [+]: can play with HTML5 (no Flash needed) [-]: delay (10s~30s) RTMP to HLS: 1. Use srs to create a HLS stream and serve the m3u8 with ... 3655

Engineering Tutorial


An Update Log System

2018

17

Dec

For the recent few months, I realized that I wrote in the “Exp” (experiment) section more than writing in the post section. Therefore, it’s hard to track my updating from the homepage. Since the Exp section and the post section are using different schemas, I cannot simply concatenate two tables and sort it by time. It’s quite necessary to design a change log system for my current blog. Target: An Update Log System for the blog Functionality: Show the most recent updates from different sources (t... 3236

Engineering


How to SSH to a Remote Server without Public IP (FREE)

2018

15

Nov

When I arrived USC, I decided to spend my money on a desktop (for scientific computation) rather than a Mac. And it turns out to be very useful and I got 800$ reward from Deep Learning class because of the project done with this machine. When I am the library and want to deploy a notebook or run some DL stuff on my desktop, I have to SSH back to it via my laptop. Here are few methods I had tried: 1. NO-IP with Router Forwarding So my laptop has to find the IP of my apartment before connecting to... 6790

Engineering


A practice for Apache families (Hadoop / HDFS / Yarn / Spark / Kafka / Zookeeper/Flink)

2018

20

Oct

Recently I have been frequently using the data processing frameworks from Apache (Hadoop/HDFS/Yarn/Spark/Kafka/ZooKeeper). And I designed a comprehensive project that uses all of them in one project and the purpose is to analyze the crime distribution in LA. I would like to have a brief summary here and move on to other techs.   I think the most fundamental and earliest framework is Hadoop. Hadoop is an open-sourced community version of Google File System. Hadoop Distributed File System (HDFS) c... 5106

Engineering Spotlight


Build a small cluster with VirtualBox

2018

28

Aug

This tutorial is meant to set up a small cluster with VirtualBox so that we can practice some distributed frameworks (e.g. Hadoop, Spark) on our own machine. The main idea is to virtualize many instances with VirtualBox and connect them with the inner network. If you already set up a virtual node or are familiar with VirtualBox, but you failed to connect them together or failed to share a folder, you can jump to this anchor. Install VirtualBox I believe you can find a lot of tutorials about how ... 3415

Engineering Tutorial


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