A PageRank-based preferential attachment model for the evolution of the World Wide Web

Giammatteo, Paolo; Donato, Debora; Zlatić, Vinko; Caldarelli, Guido

doi:10.1209/0295-5075/91/18004

Cited by 6 publications

(4 citation statements)

References 36 publications

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“…It is interesting to note that the topology obtained with our model differs significantly from those resulting from preferential attachment implemented in network growth models, which often lead to scale-free degree distributions [22]–[24]. This type of broad distribution is also present in the empirical network of corporate control [9], [25].…”

Section: Resultsmentioning

confidence: 97%

Spontaneous Centralization of Control in a Network of Company Ownerships

2013

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We introduce a model for the adaptive evolution of a network of company ownerships. In a recent work it has been shown that the empirical global network of corporate control is marked by a central, tightly connected “core” made of a small number of large companies which control a significant part of the global economy. Here we show how a simple, adaptive “rich get richer” dynamics can account for this characteristic, which incorporates the increased buying power of more influential companies, and in turn results in even higher control. We conclude that this kind of centralized structure can emerge without it being an explicit goal of these companies, or as a result of a well-organized strategy.

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Section: Resultsmentioning

confidence: 97%

Spontaneous Centralization of Control in a Network of Company Ownerships

2013

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“…Since reciprocity represents only the first viable correlation for such information sharing, it can be asserted that even better fits could be expected if the model took care of conservation of similar measures such as triad significance profile [29] or some other local structural motives. Such attempts were reported in [30] with interesting results. Taking into account the neighborhood of articles as a pool of more probable information sharing could also improve fitting qualities of the model.…”

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confidence: 84%

Model of Wikipedia growth based on information exchange via reciprocal arcs

Zlatić¹,

Štefančić²

2011

EPL

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We show how reciprocal arcs significantly influence the structural organization of Wikipedias, online encyclopedias. It is shown that random addition of reciprocal arcs in the static network cannot explain the observed reciprocity of Wikipedias. A model of Wikipedia growth based on preferential attachment and on information exchange via reciprocal arcs is presented. An excellent agreement between in-degree distributions of our model and real Wikipedia networks is achieved without fitting the distributions, but by merely extracting a small number of model parameters from the measurement of real networks.

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“…These nodes are known as hubs, or better the nodes which collect the largest number of connections with other nodes. In scientific literature this behavior is know as the preferential attachment logic [69]. Furthermore a cluster synchronization could be also considered, thinking the system formed of cluster of nodes, which firstly reach the synchronization inside each cluster, and then all the clusters start to synchronize together between them.…”

Section: Six Node Casementioning

confidence: 99%

A Proposal for a Multi-Agent based Synchronization Method for Distributed Generators in Micro-Grid Systems

Giammatteo¹,

Buccella²,

Cecati³

2016

EAI Endorsed Transactions on Industrial Networks and Intelligen

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A synchronization technique based on the Multi-Agent Systems approach, is proposed for a group of Distributed Generators belonging to a Micro-Grid. The Average Time Synchronization consensus algorithm is used. A detailed description of system's hardware architecture is given and several simulations of the dynamic are performed. Since the synchronization take place on a dedicated layer, different from the power grid one, the proposed technique does not require voltage and current measurements. This gives scalable, flexible and resilient characteristics to the system by construction.

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A PageRank-based preferential attachment model for the evolution of the World Wide Web

Cited by 6 publications

References 36 publications

Spontaneous Centralization of Control in a Network of Company Ownerships

Spontaneous Centralization of Control in a Network of Company Ownerships

Model of Wikipedia growth based on information exchange via reciprocal arcs

A Proposal for a Multi-Agent based Synchronization Method for Distributed Generators in Micro-Grid Systems

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