Informational Rescaling of PCA Maps with Application to Genetics

Nassim Nicholas Taleb∗, Pierre Zalloua, and Dan Platt
∗Corresponding author, Dec 2019

We discuss the inadequacy of covariances/correlations and other measures in L-2 as relative distance metrics. We propose a computationally simple heuristic to transform a map based on standard principal component analysis (PCA) (when the variables are asymptotically Gaussian) into an entropy-based map where distances are based on mutual information.

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[Podcast] Conversations with Tyler: Nassim Nicholas Taleb on Self-Education and Doing the Math

Nassim Nicholas Taleb and Tyler Cowen

“Though what Taleb was really after was a discussion with Bryan (read that here), the philosopher, mathematician, and author most recently of Skin in the Game also generously agreed to a conversation with Tyler.

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Medium: No, Lebanese is not a “dialect” of Arabic

The anachronism shown. The Phyla and Waves Models of Classification by Semiticists is not very scientific.

It would be an anachronism to assert that Italian is a dialect of Catalan, but safe to say that Italian comes from Latin. But when it comes to Lebanese (more generally NorthWestern Levantine), the “politically correct” Arabist-think-tank view is that is is derived from Arabic (Lebanese “dialect” of Arabic) to accommodate sensitivities — even linguists find arguments to violate the arrow of time to serve the interest of panArabism. In situations where there are similarities between a word used in Leb and Arabic, they insist it comes from Arabic not from a common root. (Most Lebanese are confused by diglossia as one is not supposed to write in the spoken language).

Medium: The insidious racism of Mary Beard and the “diversity” operators

The diversity discourse appears to serve an insidious form of racism and Northern Euro supremacist agenda (with a redefinition of the Western world and a reframing of the classics). Please stop classifying people according to race, and stop creating racial stereotypes and divisions in the name of “diversity”, while doing some smug virtue signaling. Look up “framing” in a decision theory textbook and you can see what I mean. This is no different from funding Al Qaeda headcutters and women-enslavers in Syria in the name of “democracy”.

Read the full piece on Medium: https: // medium. com/ @nntaleb/ the- insidious- racism- of- mary- beard- et- al- 8b6b768b4575