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A comment on Apple Hires Google’s A.I. Chief. Parent comment

Re:Apple Hires Google’s A.I. Chief by denzil_correa on Wednesday April 04, 2018 @03:23AM (#16752713)
> Heck, they've been doing machine learning since at least 2004, when they added Latent Semantic Analysis for junk mail filtering to the Mail app.

LSA is a knowledge (text) representation technique not machine learning.

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Re:Apple Hires Google’s A.I. Chief by jd20 on Wednesday April 04, 2018 @06:07AM (#16753392)
Fair point, I mentioned it because I was thinking they combined the LSA with some form of classifier that got trained as you marked messages as spam (or told it when it misclassified), I'm not sure what Apple's full implementation was though.
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Re:Apple Hires Google’s A.I. Chief by denzil_correa on Wednesday April 04, 2018 @06:29AM (#16753462)
Yup - it seems like they used Adaptive Latent Semantic Analysis as a dimensionality reduction technique to represent knowledge[ 0]. LSA helped them use the filtering technique on the device itself as it was not heavy.

[0] https://www.youtube.com/watch?v=7N8b3NZSJoY&t=1m21s

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