❇️ نظریه‌هایی برای همه چیز

💵 وقتی فیزیک‌دان‌ها وارد اقتصاد می‌شوند

🔸 تحلیل بحران اقتصادی کشور از منظر فیزیک اقتصاد با ارائه دکتر علی حسینی، دانش‌آموخته دکترای فیزیک دانشگاه #صنعتی_شریف و عضو هیئت علمی دانشگاه #شهید_بهشتی

🔸 آمفی تئاتر جناب دانشکده فیزیک، روز یکشنبه 11 آذر

@sharifdaily

📕 https://www.nature.com/nature/volumes/564/issues/7735?utm_source=twitter&utm_medium=social&utm_content=organic&utm_campaign=NGMT_2_SJH_Nature

🎲 @ComplexSys

imon DeDeo: From Atoms to Societies, Emergentism and Reductionism

we talk about the ways we can apply knowledge and mathematical models from Physics to the study of human social behavior ...

🎙 Data Reveals Most Influential Movies
🌐 yon.ir/ctpFQ

🎲 @ComplexSys

New cheatsheet: how to deal with reviewers' comments! https://t.co/lilVsoxHey #phdchat

#سمینارهای_هفتگی مرکز شبکه‌های پیچیده و مردم‌شناسی دانشگاه شهید بهشتی

⏰ یکشنبه، ۲۵ آذر، ساعت ۱۶:۴۵
🏛 محل برگزاری: سالن ابن هیثم
@mhakim

روز فیزیک در دانشگاه قم

⏪ وب‌گاه انجمن فیزیک ایران:
🌍 http://www.psi.ir

✅ به کانال خبرى انجمن فیزیک ايران بپيوندید:
👇👇🏽👇👇🏽👇👇🏽👇
http://xn--r1a.website/psinews

⭕️ #Hints:

Imagine you are watching a rocket take off nearby and measuring the distance it has traveled once each second. In the first couple of seconds your measurements may be accurate to the nearest centimeter, say. However, 5 minutes later as the rocket recedes into space, the accuracy of your measurements may only be good to 100 m, because of the increased distance, atmospheric distortion and a variety of other factors. The data you collect would exhibit (heteroscedasticity)[https://en.wikipedia.org/wiki/Heteroscedasticity].

In statistics, a collection of random variables is #heteroscedastic (or heteroskedastic;[a] from Ancient Greek hetero “different” and skedasis “dispersion”) if there are sub-populations that have different variabilities from others. Here "variability" could be quantified by the variance or any other measure of statistical dispersion. Thus heteroscedasticity is the absence of #homoscedasticity.

ویکی‌گفت ۴۳

دکتر محرم ایردموسی

"اگه می‌تونی منو بگیر"

دوشنبه ۳ دی ۱۳۹۷
ساعت ۱۲ الی ۱۳
اتاق سمینار دانشکده ریاضی

@MathSBU

The statistical mechanics of Twitter

Gavin Hall, William Bialek

https://arxiv.org/format/1812.07029

We build models for the distribution of social states in Twitter communities. States can be defined by the participation vs silence of individuals in conversations that surround key words, and we approximate the joint distribution of these binary variables using the maximum entropy principle, finding the least structured models that match the mean probability of individuals tweeting and their pairwise correlations. These models provide very accurate, quantitative descriptions of higher order structure in these social networks. The parameters of these models seem poised close to critical surfaces in the space of possible models, and we observe scaling behavior of the data under coarse-graining. These results suggest that simple models, grounded in statistical physics, may provide a useful point of view on the larger data sets now emerging from complex social systems.

🤔 https://www.quora.com/What-is-the-best-machine-learning-paper-you-have-read-in-2018/answer/Yisong-Yue?ch=2&srid=3YXn

🔖 http://science.sciencemag.org/content/358/6365/eaan3184

⭕️ https://www.quantamagazine.org/emergence-how-complex-wholes-emerge-from-simple-parts-20181220/