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- Tiziano Squartini, Francesco Picciolo, Franco Ruzzenenti, Diego Garlaschelli
- Scientific reports
- 2013

In directed networks, reciprocal links have dramatic effects on dynamical processes, network growth, and higher-order structures such as motifs and communities. While the reciprocity of binaryâ€¦ (More)

In order to detect patterns in real networks, randomized graph ensembles that preserve only part of the topology of an observed network are systematically used as fundamental null models. However,â€¦ (More)

- Tiziano Squartini, Giorgio Fagiolo, Diego Garlaschelli
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2011

Based on the misleading expectation that weighted network properties always offer a more complete description than purely topological ones, current economic models of the International Trade Networkâ€¦ (More)

Network topology plays a key role in many phenomena, from the spreading of diseases to that of financial crises. Whenever the whole structure of a network is unknown, one must resort toâ€¦ (More)

- Tiziano Squartini, Giorgio Fagiolo, Diego Garlaschelli
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2011

The international trade network (ITN) has received renewed multidisciplinary interest due to recent advances in network theory. However, it is still unclear whether a network approach conveysâ€¦ (More)

In all empirical-network studies, the observed properties of economic networks are informative only if compared with a well-defined null model that can quantitatively predict the behavior of suchâ€¦ (More)

- Tiziano Squartini, Iman van Lelyveld, Diego Garlaschelli
- Scientific reports
- 2013

The financial crisis clearly illustrated the importance of characterizing the level of 'systemic' risk associated with an entire credit network, rather than with single institutions. However, theâ€¦ (More)

Sampling random graphs with given properties is a key step in the analysis of networks, as random ensembles represent basic null models required to identify patterns such as communities and motifs. Aâ€¦ (More)

- Tiziano Squartini, Diego Garlaschelli
- IWSOS
- 2012

In self-organizing networks, topology and dynamics coevolve in a continuous feedback, without exogenous driving. The World Trade Network (WTN) is one of the few empirically well documented examplesâ€¦ (More)

- Giulio Cimini, Tiziano Squartini, Andrea Gabrielli, Diego Garlaschelli
- Scientific reports
- 2015

We address a fundamental problem that is systematically encountered when modeling real-world complex systems of societal relevance: the limitedness of the information available. In the case ofâ€¦ (More)