Can’t recall where the last scene was. But I was traveling and shared a room with Kevin. He didn’t look happy as usual. I tried to break the silence with some small talk but didn’t manage to break the silence. There are two washers in the room. I have my clothes washed and just stacked…
A great explanation of the Marching Cube algorithm is here. The algorithm’s goal is to draw meshes of an implicit surface function $latex f(x,y,z) = threshold$. Based on the 8 corner points for each tiny cube is above or below the threshold, the mesh triangles for the cube can be easily determined. The algorithm then…
Spent almost 5% of a retirement fund to buy gold mutual funds and already saw a 10% drop. Not sure if it is a mistake in the long run. But the timing is definitely not great. This was mostly aimed as a hedge of the non-stop money printing worldwide governments. I consider this a “short-term”…
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It was a mistake that I didn’t act immediately. I have not many but a sizeable amount of Twitter stock. I had a reasonable impression that the stock will pull back significantly after it banned Trump’s account permanently. I set a limit order hoping for a rebound. I set a price of $55, which is…
I forgot most scenes now. I should have dropped this down when I just woke up. I remember walking with a group. It is a very weird setting. I am standing on an “open” building. There are no windows. It is like a parking garage. The other side is another building. Folks there are fixing…
Try to play with dm_control and request a trial license for mujoco. Since the trial license is for local machine, I have to set colab to run locally. Things mostly work okay. I still have some problems here and there (like ffmpeg can’t generate video). I have to install pyopengl and add the following to…
My Gigabyte laptop overheated and hanged a couple of times. I decided to look for solutions. First, it is a good idea to install psensor to monitor the temperatures of the cores. The current core temperature is almost 70 degrees C. I like it hot, and my room temperature is almost 30 C. But probably…
The two concepts machine teaching and inverse RL are closely related. But one is not a special case of another. For machine teaching, the goal is to decide the optimum data set for an algorithm to learn. In other words, given a constraint of teaching cost (that can be proportional to the size of training…
It is a dream about fleeing from HK… I don’t remember how I get there now. But I was asked to attend some event in HK. And not showing up in the entire event was considered to be not loyal enough. My friends predicted that would correspond to a year of jail time. My friend…