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Complex Systems Studies
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#complexity #complex_systems #networks #network_science

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Forwarded from TCNS 2018
TCNS 2018
Photo
مدرسه تابستانی یادگیری عمیق در دانشگاه تهران. دهم تا دوازدهم مرداد. ثبت نام تا چهارم مرداد.
http://acm.ut.ac.ir/deeplearning
Forwarded from IPM Biological Sciences
دومین همایش مرزهای علوم‌زیستی
2 الی 4 مرداد 1397
http://biofrontiers.ipm.ir/
Forwarded from گردهمايی پيوند
سومین گردهمایی پیوند
📅 سه‌شنبه ۱۶ مرداد
۹ تا ۱۸
🏛 تالار ابن هیثم، دانشکده فیزیک دانشگاه شهیدبهشتی
📌 ثبت‌نام:
peyvand.me
@peyvandgathering
سومین گردهمایی پیوند
📅 سه‌شنبه ۱۶ مرداد
۹ تا ۱۸
🏛 تالار ابن هیثم، دانشکده فیزیک دانشگاه شهیدبهشتی
📌 ثبت‌نام:
peyvand.me
@peyvandgathering
🧓 "Introduction to Applied Linear Algebra – Vectors, Matrices, and Least Squares"
Book by Prof. Stephen P. Boyd (Stanford) and Prof. Lieven Vandenberghe (UCLA)
Available online

https://t.co/843XLv8xWD
🔅 "Reexamining the renormalization group: Period doubling onset of chaos" (new paper by Archishman Raju, James P Sethna): https://t.co/DdB1BAHDFX
🔖 A different approach to introducing statistical mechanics

Thomas A. Moore, Daniel V. Schroeder

🔗 https://arxiv.org/pdf/1502.07051.pdf

📌 ABSTRACT
The basic notions of statistical mechanics (microstates, multiplicities) are quite simple, but understanding how the second law arises from these ideas requires working with cumbersomely large numbers. To avoid getting bogged down in mathematics, one can compute multiplicities numerically for a simple model system such as an Einstein solid -- a collection of identical quantum harmonic oscillators. A computer spreadsheet program or comparable software can compute the required combinatoric functions for systems containing a few hundred oscillators and units of energy. When two such systems can exchange energy, one immediately sees that some configurations are overwhelmingly more probable than others. Graphs of entropy vs. energy for the two systems can be used to motivate the theoretical definition of temperature, T=(∂S/∂U)−1, thus bridging the gap between the classical and statistical approaches to entropy. Further spreadsheet exercises can be used to compute the heat capacity of an Einstein solid, study the Boltzmann distribution, and explore the properties of a two-state paramagnetic system.
Here is the paper presented by Barabasi at #ICCS2018:
Controllability of complex networks
https://t.co/3YklaJm78N
Social Networks and the Intention to Migrate
CID Research Fellow & Graduate Student Working Paper No. 90

Miriam Manchin and Sultan Orazbayev
March 2018

Abstract:

Using a large individual-level survey spanning several years and more than 150 countries, we examine the importance of social networks in influencing individuals' intention to migrate internationally and locally. We distinguish close social networks (composed of friends and family) abroad and at the current location, and broad social networks (composed of same-country residents with intention to migrate, either internationally or locally). We find that social networks abroad are the most important driving forces of international migration intentions, with close and broad networks jointly explaining about 37% of variation in the probability intentions. Social networks are found to be more important factors driving migration intentions than work-related aspects or wealth (wealth accounts for less than 3% of the variation). In addition, we nd that having stronger close social networks at home has the opposite effect by reducing the likelihood of migration intentions, both internationally and locally. https://www.hks.harvard.edu/centers/cid/publications/fellow-graduate-student-working-papers/social-networks-migration