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James Crutchfield’s research on the structure of complex systems was recently selected by Physical Review as an 'Editor’s Suggestion'
"The authors develop a method for analysis of time series generated by a class of complex processes. They identify the mechanism that causes information divergence at each level in a hierarchy of such processes." Signatures of infinity: Nonergodicity and resource scaling in prediction, complexity, and learning James P. Crutchfield and Sarah Marzen