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= USPEX (Universal Structure Predictor: Evolutionary Xtallography) =

USPEX is the acronym for Universal Structure Predictor: Evolutionary Xtallography. It is also meant to sound phonetically similar to the Russian word успех ('uspekh'), which means success. It is a method of predicting the structure of crystals that was developed in the Oganov Laboratory in 2004. It was mainly designed by Professor Artem R. Oganov of Moscow State University.

Method
USPEX uses evolutionary code to find the structure of a crystal with no empirical data, only the chemical composition. An evolutionary method is superior to one based on random structure generation because it is able to find the correct structure ab initio in a significantly fewer number of steps.