The Calculus of Service Availability — A service cannot be more available than the intersection of all its critical dependencies. If your service aims to offer 99.99% availability, then all of your critical dependencies must be significantly more than 99.99% available. Internally at Google, we use the following rule of thumb: critical dependencies must offer one additional 9 relative to your service—in the example case, 99.999% availability—because any service will have several critical dependencies, as well as its own idiosyncratic problems. This is called the “rule of the extra 9.”
datproject — open source crypto—guaranteed distributed data share, designed for versioned data sets.
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OpenAI Baselines — open source implementations of the interesting published algorithms in deep learning. The papers often gloss over some of the details, so a full and working implementation truly lets others build on research. It’s like the reproducibility project for deep learning.