🎓 The Institute for Advanced Study IAS, Universiteit van Amsterdam, offers 10 outstanding MSc. students the opportunity to join the IAS research community for their MSc. thesis. This will form an inspiring working environment for your #complexity/#interdisciplinary project. Apply by Nov. 1! https://t.co/bWalkVynz1

IFISC offers several Ph.D. positions to start by the end of 2018. Applications are welcome immediately until September 21.
t.co/LFxe2EgggI

🔖 Balance in signed networks

Alec Kirkley, George T. Cantwell, M. E. J. Newman

🔗 Download

📌 ABSTRACT
We consider signed networks in which connections or edges can be either positive (friendship, trust, alliance) or negative (dislike, distrust, conflict). Early literature in graph theory theorized that such networks should display "structural balance," meaning that certain configurations of positive and negative edges are favored and others are disfavored. Here we propose two measures of balance in signed networks based on the established notions of weak and strong balance, and compare their performance on a range of tasks with each other and with previously proposed measures. In particular, we ask whether real-world signed networks are significantly balanced by these measures compared to an appropriate null model, finding that indeed they are, by all the measures studied. We also test our ability to predict unknown signs in otherwise known networks by maximizing balance. In a series of cross-validation tests we find that our measures are able to predict signs substantially better than chance.

💡 Five book recommendations on a complex financial systems, curated by SFI External Prof AndrewWLo
https://fivebooks.com/best-books/finance-andrew-lo/

🎬 The Math That Predicted the Arab Spring - VICE Video: Documentaries, Films, News Videos

https://video.vice.com/en_us/video/motherboard-math-physics-predicted-arab-spring/58ffac792539226a16ed65a6

📝 “it wasn’t until the past two decades that we finally had enough data, powerful computers and sophisticated mathematical algorithms to develop quantitative theories of human social interactions”


🌐 https://blogs.wsj.com/cio/2018/09/14/social-physics-reinventing-analytics-to-better-predict-human-behaviors/

🎲 @ComplexSys

💡 https://blog.frontiersin.org/2018/09/18/how-physics-can-improve-our-society-matjaz-perc-leads-new-specialty-on-social-physics-in-frontiers-in-physics/

💡 https://petterhol.me/2018/09/19/community-detection-a-consumers-voice/

📝 Even in the age of the internet, distance matters immensely in determining whom — and, as a result, what — we know.

🌐 https://www.nytimes.com/interactive/2018/09/19/upshot/facebook-county-friendships.html


🎲 @ComplexSys

🎈 https://mystudentvoices.com/emergence-of-simplicity-and-complexity-d6e89003f7ad?gi=c4a76804a2a3

💡 https://www.quantamagazine.org/universal-method-to-sort-complex-information-found-20180813

🎬 https://youtu.be/dyz4E89Zjw0

🌀 https://www.johndcook.com/blog/2008/11/12/normal-approximation-for-student-t-distribution-isnt-good-enough/

🔅 https://journals.aps.org/pre/abstract/10.1103/PhysRevE.98.032309

🌀 This series of Jupyter Notebooks is a VERY nice step-by-step introduction to data science and machine learning. If you're just starting out - I recommend walking through these notebooks as a first primer

Definitely a great #100DaysOfMLCode project

https://t.co/RA7c8jg1Yk

〽️ Complexity and the City

The workshop is the 13th of a series of tutorial workshops annually organized to explore the emergence of new research fields in which modeling, analysis and control of nonlinear and complex systems play a role of growing importance. These workshops have been traditionally devoted to an interdisciplinary audience with particular attention to PhD students and young researchers. The theme of this year is “Complexity and The City” with a unique focus on interactions, mobility, epidemics, information and misinformation spreading, and many other complex phenomena occurring in urban environments.

🌐 https://complexcity.polito.it/

🎲 @ComplexSys

Nonlinear Dynamics: Mathematical and Computational Approaches : 🌐 yon.ir/c5Fvs

Introduction to Dynamical Systems and Chaos: 🌐 yon.ir/woARN
🎲 @ComplexSys

⭕️ برای مشاهده‌ ویدیوهای یوتیوب (بدون نیاز به پروکسی یا VPN) می‌تونید از سایت زیر استفاده کنید. برای دانشجویان دانشگاه شریف، این سرویس رایگانه و از حجم اینترنتشون کم نمیشه!

https://www.dideo.ir/

☕️ #چای_و_فیزیک شش ساله شد!

🏵 این ترم برای ششمین سال متوالیِ برگزاری #چای_و_فیزیک، در کنار فیزیکدانان حال و آینده (!) چای می‌نوشیم و درباره‌ی پدیده‌های فیزیکیِ دور و برمان گفت‌وگو می‌کنیم.

☘️ به احترام محیط زیست، لیوان شخصی همراه بیاورید.

🕰 دوشنبه‌ها، ساعت 17 تا 18:30
🚪 اتاق 625 دانشکده فیزیک

🆔 @Zharfa90
🆔 @anjoman_elmi_phys_sut