Arbitrage in cryptocurrency trading due to typos!
miniblog.
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Using machine learning to decide what structure to use for your neural net: https://arxiv.org/pdf/1703.01041.pdf
It's pretty meta, but ML is often good at trading computation for results.
A recent release of Free Pascal has a rather interesting behaviour for its list implementation. Lists grow additivitely (rather than multiplicatively) above 128MiB, trading off computational complexity for trying to avoid out-of-memory issues!
https://wiki.lazarus.freepascal.org/User_Changes_3.0.4#TList_auto-growth
