Skip to main content

Posts

2022


Retirement portfolios

·

In this post, we showed that the S&P 500 stock market index is a candidate investment that results in a bigger nest egg than our twin’s. In this post, we discuss mutual fund products, including a S&P 500 one, that we can invest in. A portfolio can own one or more mutual funds. We will make a comparison between a few portfolios that are candidates for retirement investing.

6% per year for 35 years

·

In a post about twins and investing, if annual interest rate of a hypothetical investment is about 6%, then someone who starts contribution early with a lower total contribution can tie at retirement age with another who starts contribution later with a much higher total contribution. The time span of this investing career is 35 years. Does such an investment exists?

2021


Paper published on Arxiv

I have published a paper version of my patent on Arxiv, titled “Iterative Training: Finding Binary Weight Deep Neural Networks with Layer Binarization”.

How to increase GPU training throughput

This is a guide for increasing GPU training throughput given a batch of training run, as opposed to increasing instantaneous throughput for one training run. Obviously, doing the latter can increase training throughput, but that is not in the scope of this guide.

Twins and investing

·

Suppose you have a twin. You start investing USD 10,000 annually for the next 10 years and then stop. At which point, your twin starts and also contributes USD 10,000 annually until retirement age. If no sales occur, who would have more money at age 65? How does the annual interest rate change the answer?

如何釋放iOS設備的存儲空間?

如何釋放iOS設備的存儲空間?

Google Photos可幫你備份手機上的相片。你可以在妥善備份後將相片從手機上移除,藉此釋出手機的儲存空間。

2020


How to limit kids access to one app on iPhone and iPad?

Follow the instructions below to lock iPhone and iPad to the current running app. Useful during kids’ FaceTime so that accidental touches do not interfere with the call. The feature also allows the parent to set a timer so the length of, for example, playing games, can be limited.