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Network operators invest significant resources in monitoring and troubleshooting the infrastructure they run. Currently, the availability of large networks of probing devices, like, for example, RIPE Atlas, dramatically increases the amount of data an operator can rely on. In particular, the large amount of traceroutes they can produce are both an opportunity and a challenge. In this paper we provide...
Bitcoin is a digital currency whose transactions are stored into a public ledger, called blockchain, that can be viewed as a directed graph with more than 70 million nodes, where each node represents a transaction and each edge represents Bitcoins flowing from one transaction to another one. We describe a system for the visual analysis of how and when a flow of Bitcoins mixes with other flows in the...
Many different approaches have been proposed for the challenging problem of visually analyzing large networks. Clustering is one of the most promising. In this paper, we propose a new clustering technique whose goal is that of producing both intracluster graphs and intercluster graph with desired topological properties. We formalize this concept in the (X,Y) -clustering framework, where Y is the class...
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