Dynamical criticality: overview and open questions

A Roli, M Villani, A Filisetti, R Serra - Journal of Systems Science and …, 2018 - Springer
Abstract Systems that exhibit complex behaviours are often found in a particular dynamical
condition, poised between order and disorder. This observation is at the core of the so …

Efficient search of relevant structures in complex systems

L Sani, M Amoretti, E Vicari, M Mordonini… - AI* IA 2016 Advances in …, 2016 - Springer
In a previous work, Villani et al. introduced a method to identify candidate emergent
dynamical structures in complex systems. Such a method detects subsets (clusters) of the …

An Iterative Information‐Theoretic Approach to the Detection of Structures in Complex Systems

M Villani, L Sani, R Pecori, M Amoretti, A Roli… - …, 2018 - Wiley Online Library
Systems that exhibit complex behaviours often contain inherent dynamical structures which
evolve over time in a coordinated way. In this paper, we present a methodology based on …

Social relevance index for studying communities in a facebook group of patients

L Sani, G Lombardo, R Pecori, P Fornacciari… - … 2018, Parma, Italy, April …, 2018 - Springer
Abstract Identifying Relevant Sets, ie, variable subsets that exhibit a coordinated behavior, in
complex systems is a very relevant research topic. Systems that exhibit complex dynamics …

Identifying critical states through the relevance index

A Roli, M Villani, R Caprari, R Serra - Entropy, 2017 - mdpi.com
The identification of critical states is a major task in complex systems, and the availability of
measures to detect such conditions is of utmost importance. In general, criticality refers to the …

GPU-based parallel search of relevant variable sets in complex systems

E Vicari, M Amoretti, L Sani, M Mordonini… - Advances in Artificial …, 2017 - Springer
Various methods have been proposed to identify emergent dynamical structures in complex
systems. In this paper, we focus on the Dynamical Cluster Index (DCI), a measure based on …

A relevance index method to infer global properties of biological networks

M Villani, L Sani, M Amoretti, E Vicari, R Pecori… - Artificial Life and …, 2018 - Springer
Many complex systems, both natural and artificial, may be represented by networks of
interacting nodes. Nevertheless, it is often difficult to find meaningful correspondences …

Asymptotic information-theoretic detection of dynamical organization in complex systems

G D'Addese, L Sani, L La Rocca, R Serra, M Villani - Entropy, 2021 - mdpi.com
The identification of emergent structures in complex dynamical systems is a formidable
challenge. We propose a computationally efficient methodology to address such a …

A fast and effective method to identify relevant sets of variables in complex systems

G D'Addese, M Casari, R Serra, M Villani - Mathematics, 2021 - mdpi.com
In many complex systems one observes the formation of medium-level structures, whose
detection could allow a high-level description of the dynamical organization of the system …

New paths for the application of DCI in social sciences: theoretical issues regarding an empirical analysis

R Righi, A Roli, M Russo, R Serra, M Villani - Advances in Artificial Life …, 2017 - Springer
Starting from the conceptualization of 'Cluster Index'(CI), Villani et al.[16, 17] implemented
the 'Dynamic Cluster Index'(DCI), an algorithm to perform the detection of subsets of agents …