This is a preview. Log in through your library . Abstract Correlation matrices play a key role in many multivariate methods (e.g., graphical model estimation and factor analysis). The current state-of ...

Statistical mechanics provides a fundamental framework for understanding how collective phenomena in many-body systems give rise to macroscopic changes in state, known as phase transitions. Research ...

Labor market conditions are similar in regions that are near each other. This is called positive spatial correlation.