João F. D. Rodrigues, Maximum-Entropy Prior Uncertainty and Correlation of Statistical Economic Data, Journal of Business & Economic Statistics, Vol. 34, No. 3 (July 2016), pp. 357-367 ...

A new study proposes a radically simple and efficient way of calculating the complex physical quantity known as entropy -- and it probably exists on your own computer.

In complex physical systems, the interaction of internal elements is unavoidable, rendering entropy calculation a computationally demanding, and often impractical, task.