Deciding how many nodes and layers to use in a neutral network: many functions can be expressed in 1 or 2 hidden layers, more is often better and faster, and you usually have to experiment.
https://machinelearningmastery.com/how-to-configure-the-number-of-layers-and-nodes-in-a-neural-network/
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Interesting discussion on globs vs regexps for package configuration: https://github.com/facebook/jest/issues/7185
Is it true that all globs can be expressed as regexps? I can imagine there might be some cute tricks that can't be converted.
(I definitely find globs easier to read though!)
If your program is better expressed in HQ9+: http://t.co/qqphzDxEzl, you should find more interesting programs to write!