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Monday, December 09, 2019

Calculating Entropy

As I read this and the paper noted at the link, this could be a very big deal.   Entropy is disorder .... and if we can accurately measure it, it leads to means of better models, measures, understanding and should lead to better results. Better measurement is always useful.

Zip Software Can Calculate the Complex Physical Quantity Called Entropy
American Friends of Tel Aviv University
December 4, 2019

Researchers at Tel Aviv University (TAU) in Israel have proposed using a standard compression algorithm like zip software to calculate entropy, a measure of the molecular disorder of a system. TAU's Roy Beck said this method could deliver insights on the physical characteristics of diseased proteins by calculating their entropy values. The technique stems from researchers' modeling of standard physical systems with comparable entropy values, which determined that the simulation data file size following compression rises and falls as entropy is expected to do. The researchers found they could convert the compressed file size into a usable physical entropy value which was valid for all examined systems. Beck said the algorithm would be simple to use on any computer for a wide variety of research.  ... ' 

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