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Delegates make friendships and form partnerships during the 7th International Railway Summit in Frankfurt on 20-22 February 2019.
© 2019 IRITS Events Ltd. Photo: Richard Hadley
Rafael Mariano Grossi, IAEA Director-General, visited the exhibit at the UN Disability Inclusion Network booth as he spend time talking to its members during the Zero Project Conference 2026 (#ZeroCon26) on Accessibility, ICT, and Crisis Response held at the Vienna International Centre, Vienna, Austria. 20 February 2026
Photo Credit: Dean Calma / IAEA
Copyright ©IAEA Images
SAA members and GT alumni network at the annual Speed Networking event at McCamish Pavilion on November 9, 2015
Congresso E-commerce Brasil Search & Vendas 2012
15 de março, Hotel Renaissance, São Paulo
www.ecommercebrasil.com.br/eventos/congresso-e-commerce-b...
Dan Reed Network
FIrst night of the UK tour - Wed March 9th 2016
Robin 2, Bilston
Melvin Brannon Jr - Bass
Connect people more easily with smart networking tools and you’ve redefined the value they get from your event.
Build a private social network that’s bursting with the right people and you enhance your event and your brand.
Washington - 10/4/18 - A partnership event by Irish Network DC and the Notre Dame Keough School of Global Affairs with Ambassador David O'Sullivan interviewed by Thomas Wright. Credit: Marty Katz/washingtonphotographer.com.
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DC photographers political diplomatic event coverage. Copyright 2018 by Marty Katz..
Network robustness is a very important question in many contexts: in communication networks, equipment failures may disrupt the network and prevent users from communicating; in distribution networks (such as power or water distribution), breakdowns can prevent service to customers; also, diseases can spread in contact networks, and vaccinating people (thus in a sense removing them from the network of the disease's spread) can prevent the infection from reaching a large number of persons.
Many papers have studied this question by considering the size of the largest connected component (i.e. the largest set of nodes such that there exists a path between any two nodes) as a criteria for evaluating the robustness of a network: the larger the size of this component, the larger the number of users who can communicate (or the number of people a disease can infect), and hence the more robust the network.
Most real-world networks have heterogeneous degree distributions (i.e. they have a large number of nodes with small degrees, a small number of nodes with a very high degree, and all intermediate cases), hence studying the robustness of power-law random networks seems relevant. This plot shows the resilience of such a network in face of failures and malevolent attacks. Failures are thought to be random events, and are modeled by random removing of nodes. Attacks aim at disrupting quickly a network, and are modeled by the removal of nodes by decreasing order of their degree. In both cases, the plot shows the fraction of nodes remaining in the largest connected component, as a function of the number of removed nodes.
The behaviors of the network in both cases are very different: while the plot for failures decreases very smoothly and reaches 0 only when almost all nodes have been removed, the plot for attacks decreases very sharply and reaches 0 when only a small fraction of the nodes has been removed. This seems to imply that networks with heterogeneous degree distributions are very resilient to failures, but very fragile against attacks. This would be due to the high degree nodes, which hold the network together. In case of failures, very few of these nodes are removed, and the network resists, but in case of attacks the removal of these nodes disrupts the network very quickly.
The third plot, which shows the effect of almost random attacks, can mitigate this conclusion. These attacks simply consist in removing randomly nodes that have degree at least 2. We can observe that, though it is not as efficient as a classical attack, this strategy succeeds in disrupting the network far more quickly than random failures. This shows that the weakness of networks with heterogeneous degree distributions in face of attacks is also caused by their large number of nodes of degree one.
See this survey for more information.
The Manufacturing Council of the Greater Lehigh Valley Chamber of Commerce held a Manufacturers Summit called "Manufacturing is Alive and Growing in the Lehigh Valley."
BUILT ENVIRONMENT NETWORKING - HELD THE FIRST LONDON EVENT AT THE CENTRAL HALL IN WESTMINSTER.©RUSSELL SACH - 0771 882 6138
MFC-EMN Annual Conference 2018
Day 1 - Thursday 4/10/2018, Euskalduna Palace
All pics by Asier Camacho