Complex Systems Studies
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〽️Weekly Seminars of Condensed Matter and Statistical Physics Group

📝Statistical physics of medical diagnostics

فیزیک آماری مسأله‌ی تشخیص بیماری

🗣 Speaker:

Dr. Abolfazl Ramezanpour
Department of Physics, Shiraz University

Wednesday, September 12, 2018 (۲۱ شهریور)
14:00-15:00

🏛Seminar Room (classroom A), Farmanieh Building, IPM

✍🏻Abstract:
Statistical physics has been widely used to extract macroscopic properties of a wide range of systems from their microscopic interaction models, yet it has not been employed to medical diagnostics. Given an initial subset of observed signs (symptoms, clinical and laboratory findings) with some prior knowledge about the patient (or a complex system like a biological cell), a diagnosis problem simply asks for the most probable diseases (or macrostates with specific phenotypes). An efficient and accurate diagnostic procedure is important specially in the early stages of diseases, where the number and quality of medical evidences are often insufficient to reach a definite diagnosis. Here, we use approximate inference and optimization algorithms of statistical physics to show that a simulation (extrapolation) of the diagnostic process (without doing any real observation) could be helpful as a heuristic strategy in the study of diagnosis problems.

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📝 Attack Tolerance of Link Prediction Algorithms: How to Hide Your Relations in a Social Network

Study of the ability to alter connections so as to increase the probability that some connections remain unidentified by link prediction algorithms.

🌐 https://arxiv.org/abs/1809.00152

🎲 @ComplexSys
📝 "Mathematical models of collective dynamics and self-organization" (by P. Degond):

"In this paper, we begin by reviewing a certain number of mathematical challenges posed by the modelling of collective dynamics and self-organization. Then..."

🌐 https://arxiv.org/abs/1809.02808

🎲 @ComplexSys
This is how Google Translate is trained to be biased in gender neutral languages like Persian.
And this paper shows that the bias is even more than the real data!
https://t.co/2TVXLNTgqt
🌄 Are mountains fractal? Actually there are two scaling regimes (same on earth and venus!)
http://necsi.edu/research/multiscale/earth-venus

Smooth at fine scale, rough at large scales with an exponent satisfying the KPZ (Kardar Parisi Zhang) prediction 0.4.
📝Turn off your e-mail and social media to get more done
Distractions are a fundamental aspect of the modern world, but we don’t have to become hermits to avoid them.

🌐 https://www.nature.com/articles/d41586-018-06213-7

🎲 @ComplexSys