Last update: 2026/02/16
About Changkun Ou
It is hard to introduce oneself, and it probably means that people will describe a person whom they want to establish. Individuals who point to themselves are trying to map their lifestyle to the public — all of them are mental models. To this day, I’m still seeking the answer to the most difficult philosophical problem: “WHO I AM.” From my side, I am going to list some basics and let them broaden your imagination and horizons, which could help you know me better.
- Legal name: Ou Changkun (Chinese: 欧长坤)
- He/Him
- Living in München
- Email: hi [at] changkun.de
- Resume: Link
Annals
- 1993, born.
- 2000, got a Windows 98 computer.
- 2003, registered Tencent QQ.
- 2008, registered Baidu Tieba, participated in Jihe Ba (几何吧), Shuxue Ba (数学吧), longqi2008 Ba (longqi2008吧), etc. Still in charge of Shuxue Ba.
- 2009, learned all high school mathematics and started studying Mathematical Analysis, Algebra, and Number Theory.
- 2010, influenced by a classmate and learned a few programming skills, such as E-lang (易语言), C, and C++.
- 2012, passed Gaokao (University Entrance Examination), enrolled at Southwest University for Nationalities, majoring in Computer Science.
- 2015, came to Germany to study Human-Computer Interaction (HCI) as an exchange student; received postgraduate recommendation to University of Electronic Science and Technology of China (UESTC).
- 2016, graduated as a Bachelor of Engineering. Enrolled at LMU München for a Master’s in HCI.
- 2018, enrolled at LMU München for a Master’s in Computer Science, parallel degree with HCI.
- 2019, graduated with a Master of Science with two parallel degrees in Human-Computer Interaction and Computer Science. Started a position as research assistant and Ph.D. student at LMU München.
- 2020, founded the golang.design initiative.
- 2023, defended Ph.D. dissertation at LMU München.
Personal Tags
Programmer, Coder, Geek, iFan, Reading, Movies, American/English/Japanese/Korean Drama, Writing, Cycling, Photography, Obsession, Perfectionism, Time Management, Agile, Otaku, C/C++, Go, Python, HTML/CSS/JS, Computer Graphics, Computer Vision, Statistical Learning Theory, Machine Learning, Pattern Recognition, Data Mining, Artificial Intelligence, Number Theory, Functional Analysis, and more!
Q&A
Q: Why did you call yourself Euryugasaki? And why did you decide to switch to your legal name on the Internet?
A: It’s complicated. Basically, “Eu” means “Ou (欧)” in Chinese, and “Ryugasaki” means “Longqi (龙崎)” in Japanese, from a comic named Death Note. So, put them together. I switched to my real name because “Euryugasaki” is pretty hard to remember for English speakers, and my site domain had already changed to changkun.de.
Q: Where are you now?
A: I live in Munich and work as a research assistant and Ph.D. student at LMU München. My research interests are in computer graphics, specifically geometry processing.
Q: Why did you choose Computer Science / Human-Computer Interaction? It seems that you like mathematics much more than CS/HCI?
A: Indeed, I love mathematics much more than CS/HCI. However, my father said I would never get a job if I chose math. For now, CS is my profession, and mathematics is just my hobby. Human-Computer Interaction focuses more on human beings. Having already explored the most important topics in CS as a bachelor student, I wanted to focus on humans rather than machines in my Master’s study.
Q: Why do you have three Master’s degrees according to your CV?
A: It is a long story. I registered at UESTC but didn’t finish since I came to Germany for other master’s degrees. At LMU, I registered HCI and Computer Science in parallel — those are my official Master’s degrees.
Q: What are your research fields?
A: I have a broad set of interests, having touched on almost all areas of computer science — computer vision, machine learning, human-computer interaction, and more. In the first and third years of my undergraduate studies, I spent a lot of time exploring these areas and worked on many related projects. As I mentioned, I love mathematics, especially algebra. In my second year, I spent nearly a semester studying the Riemann Hypothesis, but of course had to give it up due to a busy course load. During my Master’s studies, I worked assiduously on my HCI and CS degrees at LMU Munich, and I am now a research assistant and Ph.D. student there.
关于欧长坤
自我介绍是一件困难的事情，这大概意味着人们会描述一个他们想要建立的形象。每个指向自己的人都在试图将他们的生活方式映射到公众面前，这一切都是心智模型。至今，我仍在寻找最困难的哲学问题——“我是谁"的答案。在这里，我列出一些基本信息，希望能拓宽你的想象，帮助你更好地了解我。
- 姓名：欧长坤
- 他/Him
- 居住在慕尼黑
- 邮箱：hi [at] changkun.de
- 简历：链接
年表
- 1993，出生。
- 2000，获得一台 Windows 98 电脑。
- 2003，注册腾讯 QQ。
- 2008，注册百度贴吧，参与几何吧、数学吧、longqi2008吧等，至今仍管理数学吧。
- 2009，自学完高中全部数学知识，开始学习数学分析、代数、数论。
- 2010，受高中同学影响，学习了一些编程技能，如易语言、C、C++。
- 2012，通过高考，进入西南民族大学计算机科学专业。
- 2015，作为交换生赴德国学习人机交互；获得电子科技大学（UESTC）保研资格。
- 2016，获工学学士学位。进入慕尼黑大学（LMU）攻读人机交互硕士。
- 2018，同时注册慕尼黑大学计算机科学硕士，与人机交互并行攻读。
- 2019，以人机交互和计算机科学双硕士学位毕业。入职慕尼黑大学，担任博士研究员。
- 2020，创立 golang.design 开源计划。
- 2023，在慕尼黑大学完成博士论文答辩。
个人标签
程序员、极客、iFan、阅读、电影、美剧/英剧/日剧/韩剧、写作、骑行、摄影、强迫症、完美主义、时间管理、敏捷开发、宅、C/C++、Go、Python、HTML/CSS/JS、计算机图形学、计算机视觉、统计学习理论、机器学习、模式识别、数据挖掘、人工智能、数论、泛函分析，等等！
问答
Q: 你为什么叫欧龙崎？为什么现在改用真名了？
A：这是因为我最喜欢的一部动漫《死亡笔记》的主角之一的假名叫龙崎，当时百度ID还不能取中文，所以一开始我注册的百度ID就想取为：longqi，后来发现longqi已经被注册了，我就加了一个注册年份，帐号就成了longqi2008。后来在百度贴吧里面和一些网友讨论的时候他们总是叫我longqi，后来觉得挺别扭，就随便取了一个中文名：欧龙崎。我的 Family Name 加龙崎二字。久而久之，也就习惯了。至于为什么改用真名的原因在于「欧龙崎」这个名字的英文略显疲态，与此同时我的域名也进行了更换，索性直接使用真名。
Q: 你现在在哪儿？
A: 我现在居住在慕尼黑，作为一名研究员在慕尼黑大学工作，着手攻读我的人机交互博士学位，研究方向是几何处理。
Q: 为什么你会读计算机/人机交互专业？看起来你更喜欢数学一些？
A: 其实这是家庭因素决定的，直到高考填志愿的当天我还铁了心要填数学与应用数学专业，不过在父亲的劝说之下选了计算机科学与技术专业。至于为什么填了计算机专业，这有两方面的因素，其中一个因素是父亲是搞影视制作生意的，我很小就接触到一些电脑知识。还有一个比较重要的因素是受到高中同学补子畅的影响，他很早就接触了计算机编程，受他的影响我稍微了解了一点易语言和 C 语言。所以后来在父亲的劝说之下没有将数学与应用数学专业作为第一志愿填报，最后被西南民族大学计算机科学专业录取。后来本科阶段接触了大量计算机领域的分支，接触最多的是机器。我发现机器比人总是可靠的多，人的未知性更多，只有技术是不够的，所以我现在对人的行为，而人机交互是一个介于机器和人之间的学科，但更关注人，不仅能提高我的技术水平，也能提高对产品设计的理解，作为一项终身技能发展，所以我选择了人机交互。
Q: 从你的 CV 来看，竟然有三个硕士学位？
A：这个就说来话长了。其实我只有两个，UESTC 的 Master 我确实注册了，但是由于去德国读 Master 的缘故，UESTC 并没有继续读完；而在德国的慕尼黑大学我注册了两个 Master 学位，一个是人机交互，另一个就是计算机科学。现在我已经以这两个学位的身份毕业了。
Q: 你主要的研究领域是什么？
A：其实我感兴趣的东西很多，整个本科期间几乎接触了所有的计算机科学领域，这里面我最喜欢的一些领域包括有计算机视觉、机器学习、人机交互等等。大一和大三我花了很多时间来研究这些领域，做过很多相关项目。正如上一个问题提到的那样，我还喜欢数学，我喜欢研究代数，大二时曾花了一个学期研究过黎曼假设，当然最后由于课业繁忙只好无果而终。我的硕士阶段以人机交互方向的身份学习了非常多关于产品的知识，但我现在的决定是在三十岁之前专注技术和产品，以计算机科学方向的身份进一步实践了机器学习和统计学习理论相关的知识。目前我作为一名博士研究员在慕尼黑大学工作，研究方向是 3D 模型的压缩。