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Network Science Barab asi: Ch. 1 Introduction Joao Meidanis University of Campinas, Brazil September 18, 2020 Summary Vulnerability from Interconnectivity 1 Networks at Heart of Complex Systems 2 Two Forces Helped Emergency of

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Network Science

Barab´ asi: Ch. 1 — Introduction Joao Meidanis

University of Campinas, Brazil

September 18, 2020

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Summary

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Vulnerability from Interconnectivity

2

Networks at Heart of Complex Systems

3

Two Forces Helped Emergency of Network Science

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Characteristics of Network Science

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Impact of Network Science In Society In the Scientific Community

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Vulnerability from Interconnectivity

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2003 Blackout in North America

a. Previous night; b. Blackout night.

Interconnectivity: Efficient use of resources Failure may affect far away places

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Networks at Heart of Complex Systems

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Complex Systems

Society: billions of individuals Communication: billions of cell phones, computers, satellites Brain: billions of neurons Biology: thousands of genes and metabolites Hard to grasp whole looking at components Goals toward complex systems: understand describe (mathematically) predict control

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Networks Behind Complex Systems

There are networks behind every complex system: Cellular network: cells Neural network: brain Social network: society Communication networks: communication Power grid: electricity Trade network: exchange of goods and services Common set of fundamental laws and principles

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Two Forces Helped Emergency of Network Science

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Two Forces Helped the Emergence of Network Science

Data availability: Maps Visual and non visual Complete description Usually in digital form Universality: Similar characteristics Same organizational principles

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Characteristics of Network Science

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Characteristics of Network Science

Interdisciplinary Nature Data Driven Nature Quantitative Nature Computational Nature

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Impact of Network Science

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Impact of Network Science in Society

Economic Health Security Epidemics Neuroscience Management Scientific

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Scientific Impact of Network Science in Society

Highly cited papers, funding, journals, books

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