4 papers
Local and Global Balance in Financial Correlation Networks: an Application to Investment Decisions
Paolo Bartesaghi, Rosanna Grassi, Pierpaolo Uberti
The global balance is a well-known indicator of the behavior of a signed network. Recent literature has introduced the concept of local balance as a measure of the contribution of…
Global Balance and Systemic Risk in Financial Correlation Networks
Paolo Bartesaghi, Fernando Diaz-Diaz, Rosanna Grassi +1
The global balance index is used in the network literature to quantify how balanced a signed network is. In this paper we show that the global balance index of financial correlatio…
Null-adjusted persistence function for high-resolution community detection
Alessandro Avellone, Paolo Bartesaghi, Stefano Benati +2
Modularity and persistence probability are two widely used quality functions for detecting communities in complex networks. In this paper, we introduce a new objective function cal…
Mathematical Modeling of Local Balance in Signed Networks and Its Applications to Global International Analysis
Fernando Diaz-Diaz, Paolo Bartesaghi, Ernesto Estrada
Alliances and conflicts in social, political and economic relations can be represented by positive and negative edges in signed networks. A cycle is said to be positive if the prod…