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25 FEBRUARY 2016

Universal resilience patterns in complex networks

"Resilience, a system's ability to adjust its activity to retain its basic functionality when errors, failures and environmental changes occur, is a defining property of many complex systems. Despite widespread consequences for human health, the economy and the environment, events leading to loss of resilience—from cascading failures in technological systems to mass extinctions in ecological networks—are rarely predictable and are often irreversible. These limitations are rooted in a theoretical gap: the current analytical framework of resilience is designed to treat low-dimensional models with a few interacting components, and is unsuitable for multi-dimensional systems consisting of a large number of components that interact through a complex network. Here we bridge this theoretical gap by developing a set of analytical tools with which to identify the natural control and state parameters of a multi-dimensional complex system, helping us derive effective one-dimensional dynamics that accurately predict the system's resilience. The proposed analytical framework allows us systematically to separate the roles of the system's dynamics and topology, collapsing the behaviour of different networks onto a single universal resilience function. The analytical results unveil the network characteristics that can enhance or diminish resilience, offering ways to prevent the collapse of ecological, biological or economic systems, and guiding the design of technological systems resilient to both internal failures and environmental changes."

(Jianxi Gao, Baruch Barzel & Albert-László Barabási, 17 February 2016, Nature)

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2016Albert-Laszlo Barabasi • Baruch Barzel • biological systems • cascading failure • Cognitive Visualization Lab • complex networkscomplex systems • critical phenomena • data visualisationdroughtecological balance • ecological networks • ecological sustainability • ecological systems • ecosystemenvironmental changeenvironmental statisticsextinctionglobal issuesIBM • IBM Watson • interrelationships • irreversible change • Jianxi Gao • loss of resilience • Mauro Martino • multidimensional systems • network dynamics • network earth • network ecologynetwork model • network relationships • networked interaction • nonlinear phenomena • Northeastern University • one-dimensional dynamics • phase transitions • resiliencespeciationsustainability • system collapse • technological systems • universal resilience function • universal resilience patterns • visual explanations • visual representation graphicallyvisual representations of scientific conceptsvisualising data • wildfire

CONTRIBUTOR

Simon Perkins
06 OCTOBER 2015

Hans Rosling: Don't Panic - The Truth About Population

"'Don't Panic' is a one-hour long documentary produced by Wingspan Productions and broadcasted on BBC on the 7th of November 2013.

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2013BangladeshBBC2birth and deathchanging worldchild mortalitycountry and comparative datadata visualisationdebunkingdemographicsdeveloping countriesdifferent strata of society • Dollar Street • economic developmentenvironmental determinismenvironmental statistics • extreme poverty • family planning • Gapmindergender equalityglobal population • global portrait • Hans Roslinghuman history • human mortality • ignorance survey • Indiainfographics • life expectancy • mortalityour planetPeoples Republic of Chinapopulation change • population explosion • population growthpopulation statisticspovertypreconceptionsmall data • social development • social inequalitystatistical graphicsstatistician • street metaphor • sustainable global development • television documentary • understanding statistics • United Nationsvisualising data • Wingspan Productions

CONTRIBUTOR

Simon Perkins
15 APRIL 2012

Statistics New Zealand Tatauranga Aotearoa: Digital yearbook collection

"The New Zealand Official Yearbook has provided a comprehensive statistical picture of life in New Zealand since 1893. 'Handbooks' and 'Blue books' of statistical information go back even further."

(Statistics New Zealand Tatauranga Aotearoa)

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1893Aotearoa New Zealandbirth and death • census data • Census of Population and Dwellings • cultural identity • Digital yearbook collection • economic statistics • environmental statistics • fiscal statistics • Indigenous people • language and culture • Maorinational cultural heritage onlineNorth Islandpopulation statisticspostcolonialsocial statisticsSouth Islandstatistical informationstatisticsstatistics can tell you most things • Statistics New Zealand • Statistics New Zealand Tatauranga Aotearoa

CONTRIBUTOR

Simon Perkins
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