Complex Systems Studies
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#complexity #complex_systems #networks #network_science

📨 Contact us: @carimi
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#سمینارهای_هفتگی گروه سیستم‌های پیچیده و علم شبکه دانشگاه شهید بهشتی

🔹دوشنبه، ۰۴ اردیبهشت ‌ماه، ساعت ۴/۵ - کلاس ۴ دانشکده فیزیک دانشگاه شهید بهشتی

@carimi
💭 Albert-László Barabási on the diversity of networks
http://physicstoday.scitation.org/do/10.1063/PT.5.3050/full/
🗞 The Emergence of Consensus

Andrea Baronchelli

🔗 https://arxiv.org/pdf/1704.07767

📌 ABSTRACT
The origin of population-scale coordination has puzzled philosophers and scientists for centuries. Recently, game theory, evolutionary approaches and complex systems science have provided quantitative insights on the mechanisms of social consensus. This paper overviews the main dimensions over which the debate has unfolded and discusses some representative results, with a focus on those situations in which consensus emerges `spontaneously' in absence of centralised institutions. Covered topics include the macroscopic consequences of the different microscopic rules of behavioural contagion, the role of social networks, and the mechanisms that prevent the formation of a consensus or alter it after it has emerged. Special attention is devoted to the recent wave of experiments on the emergence of consensus in social systems.
🌀 The Problem of Action at a Distance in Networks and the Emergence of Preferential Attachment from Triadic Closure

Jérôme Kunegis, Fariba Karimi, Jun Sun

🔗 https://arxiv.org/pdf/1408.0119

(Submitted on 1 Aug 2014 (v1), last revised 24 Apr 2017 (this version, v2))

📌 ABSTRACT
In this paper, we characterise the notion of preferential attachment in networks as action at a distance, and argue that it can only be an emergent phenomenon -- the actual mechanism by which networks grow always being the closing of triangles. After a review of the concepts of triangle closing and preferential attachment, we present our argument, as well as a simplified model in which preferential attachment can be derived mathematically from triangle closing. Additionally, we perform experiments on synthetic graphs to demonstrate the emergence of preferential attachment in graph growth models based only on triangle closing.
🌀 Deadline coming up!
Calling all young quantitative biologists/biophysicists:
there are post-doctoral positions open in ICTP's Quantitative Life Science section.

🔥 Apply by 30 April!

http://ictp.it/wqbq4
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System Dynamics Summer School
#سمینارهای_هفتگی گروه سیستم‌های پیچیده و علم شبکه دانشگاه شهید بهشتی

🔹دوشنبه، ۱۱ اردیبهشت ‌ماه، ساعت ۴/۵ - کلاس ۴ دانشکده فیزیک دانشگاه شهید بهشتی

@carimi
An introduction to Fractal Geometry.pdf
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