The conceptual evolution of green building is reflected in historical versions of green building rating tools. Computational text analysis on historical versions of LEED revealed changes in the category systems and textual contents, which reflects how LEED’s green building concept has evolved in the 21st century. Keywords: green building rating tool (GBRT); conceptual evolution; LEED; computational text analysis ...

通过一个图像合成视频的脚本案例测试了一下Python3在单线程、多线程和多进程下的运行速度。发现多线程可以一定程度上提高运行速度（将1个线程拆为4个线程，提速大约83%），但是不能达到完全的并行运算，据说是因为threading模块并不能真正调用多个处理器。在多进程下运行，可以接近完全平行的运算速度。 ...

This post of nonsense is written in English to avoid potential censorship of speech1. I write this post as a personal record of the chaos at the end(?) of the strict COVID regulation “era”, as well as a witness of an ongoing elimination(?) of public discussion. NOTE: I’m not quoting any factual sources here, so all will be my personal opinions. ...

之前在使用Hexo平台 + NexT主题搭建博客的时候，自带不蒜子1的网站访问统计。现在的这个主题下需要自行添加统计功能。最终还是决定使用不蒜子来实现，便于直接显示在网站页面上2。唯一的缺点就是目前没办法自定义初始值，所以域名更换后数据就从零开始了。 ...

Barrel distortion(桶形畸变)是一种成像画面呈桶形膨胀的畸变现象，通常在广角镜头下出现。最近在调试生态监测相机时就遇到了非常典型的桶形畸变，会影响到对于监测对象的定位精确性。 ...