توی این کار نشون دادن هرچی در دانشگاه خوش آوازه‌تری مشغول باشی، شانس بیشتری داری که حرفت شنیده بشه!

🔖 Prestige drives epistemic inequality in the diffusion of scientific ideas

Allison C. Morgan, Dimitrios Economou, Samuel F. Way, Aaron Clauset

🔗 arxiv.org/pdf/1805.09966v1.pdf

📌 ABSTRACT
The spread of ideas in the scientific community is often viewed as a competition, in which good ideas spread further because of greater intrinsic fitness. As a result, it is commonly believed that publication venue and citation counts correlate with importance and impact. However, relatively little is known about how structural factors influence the spread of ideas, and specifically how where an idea originates can influence how it spreads. Here, we investigate the role of faculty hiring networks, which embody the set of researcher transitions from doctoral to faculty institutions, in shaping the spread of ideas in computer science, and the importance of where in the network an idea originates. We consider comprehensive data on the hiring events of 5,032 faculty at all 205 Ph.D.-granting departments of computer science in the U.S. and Canada, and on the timing and noscripts of 200,476 associated publications. Analyzing three popular research topics, we show empirically that faculty hiring plays a significant role in driving the spread of ideas across the community. We then use epidemic models to simulate the generic spread of research ideas and quantify the consequences of where an idea originates on its longterm diffusion across the network. We find that research from prestigious institutions spreads more quickly and completely than work of similar quality originating from less prestigious institutions. Our analyses establish the theoretical trade-offs between university prestige and the quality of ideas necessary for efficient circulation. These results suggest a lower bound for epistemic inequality, identify a mechanism for the persistent epistemic advantage observed for elite institutions, and highlight limitations for meritocratic ideals.

برسانید به دست کسانی که کنکور کارشناسی داده‌اند:

📢 چهارسال فیزیک!

چهارسال گذشت و دوره کارشناسی فیزیک من تموم شد. چهارسال پر از فراز و نشیبی که با تمام لذت‌ها و هیجان‌ها، سختی‌ها و فشارها بالاخره به پایان رسید (من ورودی ۹۱ فیزیک دانشگاه شهیدبهشتی بودم). قصد دارم طی این نوشته، تجربه‌های خودم از دوران کارشناسی فیزیک رو بنویسم. امیدوارم این نوشته‌ برای کسایی که قصد دارن فیزیک رو به صورت آکادمیک شروع کنن و برای کسانی که به تازگی وارد فیزیک شدن مفید واقع بشه!

🔗 http://www.sitpor.org/2016/06/bachelor-of-science-in-physics/

As #ICCS2018 approaches, here is a list of "significant points" to ponder in the study of complex systems.

In order to help establish a backdrop for the ICCS conferences, I have compiled (with much feedback and contributions from others) a list of "significant points" in the study of complex systems. These are supposed to represent key conceptual insights coupled with mathematical tools for the analysis and discussion of complex systems in general. Feedback and additions are welcome. The points are provided only in brief. In general some familiarity is assumed. Some controversial points are included (what field has no controversy?).

Y. Bar-Yam


http://www.necsi.edu/guide/points.html?platform=hootsuite

🔖 A Mini-Introduction To Information Theory

🙋🏻‍♂ Edward Witten

🔗 https://arxiv.org/pdf/1805.11965

📌 ABSTRACT
This article consists of a very short introduction to classical and quantum information theory. Basic properties of the classical Shannon entropy and the quantum von Neumann entropy are described, along with related concepts such as classical and quantum relative entropy, conditional entropy, and mutual information. A few more detailed topics are considered in the quantum case.

🔹 Master in Physics of Complex Systems: The registration and enrolment period has begun. You can register using the form at the website https://t.co/nwuLndIwgE
Further information about the program and our fellowships can be found at
https://t.co/OM3LwFP2N9

https://t.co/JzO4YGhr5p

به اطلاع دانشجویان گرامی می‌رسانیم، گروه ریاضی کاربردی و صنعتی دانشگاه شهید بهشتی از مهر ۱۳۹۷ در گرایش علوم داده دانشجوی کارشناسی ارشد می‌پذیرد.

سرفصل‌ درس‌های گرایش علوم داده، مصوب وزارت علوم

فراخوان دعوت به همکاری
ما یک شرکت دانش بنیان هستیم که در حوزه مدلسازی و شبیه سازی مسایل اجتماعی-اقتصادی فعالیت می¬کنیم و از افراد واجد شرایط زیر دعوت به همکاری می کنیم. لازمه کار ما داشتن علاقه به مطالعه کمّی و محاسباتی علوم انسانی، حداقلی از دانش ریاضی (در حد رشته های مهندسی)، و استعداد و خلاقیت است. محیط کار ما هم دوستانه و همراه با یادگیری است و در حال حاضر برای انجام بعضی پروژه های در دست و همچنین گسترش تیم مان نیاز به همکاران جدید داریم.بعضی از رشته هایی که ممکن است به کار ما مرتبط باشند و فارغ التحصیلان یا دانشجویانش می توانند جهت همکاری با ما اقدام کنند عبارتند از:
• ریاضی
• آمار
• علوم کامپیوتر
• مهندسی صنایع
• مهندسی کامپیوتر
• فیزیک
• برق (گرایش کنترل)

افراد علاقمند می توانند رزومه خود را به آدرس زیر بفرستند:
info@raayaar.ir

🔖 Multichannel social signatures and persistent features of ego networks

Sara Heydari, Sam G. Roberts, Robin I. M. Dunbar, and Jari Saramäki

🔗 https://rdcu.be/QmwK

📌 ABSTRACT
The structure of egocentric networks reflects the way people balance their need for strong, emotionally intense relationships and a diversity of weaker ties. Egocentric network structure can be quantified with ’social signatures’, which describe how people distribute their communication effort across the members (alters) of their personal networks. Social signatures based on call data have indicated that people mostly communicate with a few close alters; they also have persistent, distinct signatures. To examine if these results hold for other channels of communication, here we compare social signatures built from call and text message data, and develop a way of constructing mixed social signatures using both channels. We observe that all types of signatures display persistent individual differences that remain stable despite the turnover in individual alters. We also show that call, text, and mixed signatures resemble one another both at the population level and at the level of individuals. The consistency of social signatures across individuals for different channels of communication is surprising because the choice of channel appears to be alter-specific with no clear overall pattern, and ego networks constructed from calls and texts overlap only partially in terms of alters. These results demonstrate individuals vary in how they allocate their communication effort across their personal networks and this variation is persistent over time and across different channels of communication.

#Social_signatures, #Social_networks, #Egocentric_networks, #Mobile_phones

🍄 https://comdig.unam.mx/2018/06/01/the-biology-of-consciousness-from-the-bottom-up/amp/?__twitter_impression=true

powerlaw:

A Python Package for Analysis of Heavy-Tailed Distributions
https://pypi.org/project/powerlaw/

🔹 Computational Methods in Physics
Department of Physics, Sharif University of Technology, Fall 2017

Lecture Notes are available in Farsi. Here is the list of released ones:

http://sharifcompphys.ir/course-materials/lecture-notes/

Introduction
Fractals
Surface Growth
Percolation
Random Walk
Random Number Generation
Integrating
The Metropolis Algorithm
Canonical Ensemble
Ising Model

🔹 http://ncase.me/crowds/