5 papers
Inverse generalised spin models of answers to questionnaires
Arianna Armanetti, Luca Cecchetti, Paolo Sarti +2
Network psychometrics conceptualises psychological constructs as emergent properties of systems of interacting items. Energy-based probabilistic models have gained popularity as mo…
Assessing imbalance in signed brain networks
Marzio Di Vece, Emanuele Agrimi, Samuele Tatullo +3
Many complex systems - be they financial, natural, or social - are composed of units - such as stocks, neurons, or agents - whose joint activity can be represented as a multivariat…
Noise-cleaning the precision matrix of fMRI time series
Miguel Ibáñez-Berganza, Carlo Lucibello, Francesca Santucci +2
We present a comparison between various algorithms of inference of covariance and precision matrices in small datasets of real vectors, of the typical length and dimension of human…
Information-theoretical analysis of the neural code for decoupled face representation
Miguel Ibáñez-Berganza, Carlo Lucibello, Luca Mariani +1
Processing faces accurately and efficiently is a key capability of humans and other animals that engage in sophisticated social tasks. Recent studies reported a decoupled coding fo…
The low-temperature phase in the two-dimensional long-range diluted XY model
Fabiana Cescatti, Miguel Ibáñez-Berganza, Alessandro Vezzani +1
The critical behaviour of statistical models with long-range interactions exhibits distinct regimes as a function of , the power of the interaction strength decay. For large…