这个系列的缘起是，又到冬天了，本地天天下雨，天文摄影的远程台恢复遥遥无期，所以开始搞一些新爱好。摄影是视觉，咖啡 …
Articles by grapeot
导星误差的系统性改进及AM5赤道仪评测
ZWO最近送测了一台AM5赤道仪，我架到三脚架上一开光，导星均方误差（RMS）直接到了1.41角秒。当时就觉得这个赤道仪实在是太烂了，1.41角秒这是在搞笑么。于是我把同样的器 …
What metric should you use for weight management?
I recently started a new project of my own weight management, and had some learnings on the which metrics to optimize. I share it here hoping it would inspire someone in selecting metrics in ML systems.
I’m a deep believer of “if you cannot measure it, you cannot improve …
使用血糖作为减肥的间接指标
推荐一个健康管理神器，CGM，持续血糖监测仪。是一个小传感器，“贴”在肚皮上，就可以每5分钟测一次血糖，并且和手机同步。它有什么好处呢，对 …
Things I Wish I Knew as a New Grad -- Suggestions on a Software Engineer's Career
Recently some of my friends graduated from school and began their career as software engineers. And they asked me for suggestions on an effective start in the industry. I took this opportunity to think about my career, and summarized a few key learnings that I wish I …