Talks at DPG conference

I am happy to announce that I will give two talks at this years DPG Spring Meeting in Dresden, 19.-24. of March:

SOE 16.1 (46) Location: GÖR 226
Thu 9:30
Title: Structure and dynamics of multiplex networks: beyond de-
gree correlations
Abstract: The organization of constituent network layers to multiplex networks
has recently attracted a lot of attention. Here, we show empirical
evidence for the existence of relations between the layers of real mul-
tiplex networks that go beyond degree correlations. These relations
consist of correlations in hidden metric spaces that underlie the ob-
served topology. We discuss the impact and applications of these rela-
tions for trans-layer link prediction, community detection, navigation,
game theory, and especially for the robustness of multiplex networks
against random failures and targeted attacks. We show that these
relations lead to fundamentally new behaviors, which emphasizes the
importance to consider organizational principles of multiplex networks
beyond degree correlations in future research.

SOE 16.7 (31) Location: GÖR 226
Thu 11:30
Title: Collective navigation of complex networks: Participatory
greedy routing
Abstract: Many networks are used to transfer information or goods, in other
words, they are navigated. The larger the network, the more difficult
it is to navigate efficiently. Indeed, information routing in the Inter-
net faces serious scalability problems due to its rapid growth, recently
accelerated by the rise of the Internet of Things. Large networks like
the Internet can be navigated efficiently if nodes, or agents, actively
forward information based on hidden maps underlying these systems.
However, in reality most agents will deny to forward messages, which
has a cost, and navigation is impossible. Can we design appropriate
incentives that lead to participation and global navigability? Here, we
present an evolutionary game where agents share the value generated
by successful delivery of information or goods. We show that global
navigability can emerge, but its complete breakdown is possible as
well. Furthermore, we show that the system tends to self-organize into
local clusters of agents who participate in the navigation. This orga-
nizational principle can be exploited to favor the emergence of global
navigability in the system.


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