304 citations · 304 across the 1 of their papers we have counts for
3 papers
Canonical Sectors and Evolution of Firms in the US Stock Markets
Lorien X. Hayden, Ricky Chachra, Alexander A. Alemi +2
A classification of companies into sectors of the economy is important for macroeconomic analysis and for investments into the sector-specific financial indices and exchange traded…
Parameter Space Compression Underlies Emergent Theories and Predictive Models
Benjamin B. Machta, Ricky Chachra, Mark K. Transtrum +1
We report a similarity between the microscopic parameter dependance of emergent theories in physics and that of multiparameter models common in other areas of science. In both case…
Structural Susceptibility and Separation of Time Scales in the van der Pol Oscillator
Ricky Chachra, Mark K. Transtrum, James P. Sethna
We use an extension of the van der Pol oscillator as an example of a system with multiple time scales to study the susceptibility of its trajectory to polynomial perturbations in t…