dpkingma

There seems to be some relevant prior work that is not referenced by this paper, such as our work on training sparse neural networks:

https://arxiv.org/abs/1712.01312

Abstract: "We propose a practical method for L0 norm regularization for neural networks: pruning the network during training by encouraging weights to become exactly zero. Such regularization is interesting since (1) it can greatly speed up training and inference, and (2) it can improve generalization. [...]"

Haha, thanks for dredging this up, I made that :) It seems quite related to the OP article. It's a library for making grayscale games on the TI83 graphical calculator, which has a monochrome display. The main challenge was optimizing the interrupt routine, the z80 assembly code that performed the flickering/dithering that achieves the grayscale effect, to fit within the tiny amount of clock cycles available on the Zilog Z80 6 MHz processor. Even after optimization, it took up ~50%-75% of all available cycles. Some people managed to make some pretty fun grayscale games with it (e.g. https://www.ticalc.org/archives/files/fileinfo/331/33153.htm...). This was obviously in the pre-smartphone era, so the ti83 was quite popular for playing games in class, and hand written assembly code was the only way to make it fast.

True, edited original comment to reflect this.

Death Valley prides itself on being the hottest place on earth, based on the temperature record of 54.0 °C (air temp at 1.5m).

However, DV does not come out on top when looking at temperatures measured by satellites (EDIT: ground temperature, and less reliable.) From Wikipedia [1]: "The highest recorded temperature taken by a satellite is 66.8 °C (152.2 °F), which was measured in the Flaming Mountains of China in 2008. Other satellite measurements of ground temperature taken between 2003 and 2009, taken with the MODIS infrared spectroradiometer on the Aqua satellite, found a maximum temperature of 70.7 °C (159.3 °F), which was recorded in 2005 in the Lut Desert, Iran. The Lut Desert was also found to have the highest maximum temperature in 5 of the 7 years measured (2004, 2005, 2006, 2007, and 2009). These measurements reflect averages over a large region and so are lower than the maximum point surface temperature." According to [2], the record is 80.8 °C at Lut Desert.

[1] https://en.wikipedia.org/wiki/Highest_temperature_recorded_o... [2] https://journals.ametsoc.org/view/journals/bams/aop/BAMS-D-2...

PSLDX is one:

https://www.portfoliovisualizer.com/backtest-portfolio?s=y&t...

(Disclaimer: this is not an endorsement)

In SF it's actually a bit more nuanced than that:

https://sf.gov/stay-home-except-essential-needs "Are nannies permitted to be used? What about other in-home child care? In some instances. If the nanny provides medical/health care for the child, then yes. If the nanny lives with you, then yes. Otherwise, nannies not necessary for medical care are not permitted. Also, parents required to work away from home for essential services may need in-home child care, which is permitted."

In SF it's actually a bit more nuanced, and in most situations nannies are not allowed:

https://sf.gov/stay-home-except-essential-needs "Are nannies permitted to be used? What about other in-home child care? In some instances. If the nanny provides medical/health care for the child, then yes. If the nanny lives with you, then yes. Otherwise, nannies not necessary for medical care are not permitted. Also, parents required to work away from home for essential services may need in-home child care, which is permitted."

Held individually the negative-yield bonds don't make much sense. However, they can actually improve the risk-adjusted returns of a portfolio that also holds stocks. This is because long-term bonds have, in the past decade, been negatively correlated with stocks [1,2].

[1] https://imgur.com/a/r9nCsN5

[2] https://www.portfoliovisualizer.com/asset-correlations?s=y&s...