gistfile1.txt

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  <dt>u/cokechan: Can you talk about the machine learning model that serves ads? What features is the model trained on?</dt>
  <dd>Currently betting on ELPH: Entropy Learning Pruned Hypothesis but all the Bayesian tools in the kit work. For proof of humanity (see last answer) we know of potential partners using RNNs. The key with machine learning is data feed quality. Browsers are juicy: navigation, tab clusters, opener/openee relations, scrolling of content, and (bigger) search query log, ecommerce log, form fill data. Plus info you volunteer when onboarding about demographics, brand loyalty, that stays on device and is encrypted with client key if you sync. We can do cross-device attribution via encrypted sync + blind tokens, without any data in clear on servers. This will be huge!</dd>
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