Archivio per 4 marzo 2015

04
Mar
15

A general quantum information model for the contextual dependent systems breaking the classical probability law

See on Scoop.itBounded Rationality and Beyond

There exist several phenomena (systems) breaking the classical probability laws. Such systems are contextual dependent adaptive systems. In this paper, we present a new mathematical formula to compute the probability in those systems by using the concepts of the adaptive dynamics and quantum information theory – quantum channels and the lifting. The basic examples of the contextual dependent phenomena can be found in quantum physics. And recently similar examples were found in biological and psychological sciences. Our novel approach is motivated by traditional quantum probability, but it is general enough to describe aforementioned phenomena outside of quantum physics.

  
See on arxiv.org

04
Mar
15

The quantum-like description of the dynamics of party governance in the US political system

See on Scoop.itBounded Rationality and Beyond
This paper is devoted to the application of the mathematical formalism of quantum mechanics to social (political) science. By using the quantum dynamical equations we model the process of decision making in US elections. The crucial point we attempt to make is that the voter’s mental state can be represented as a superposition of two possible choices for either republicans or democrats. However, reality dictates a more complicated situation: typically a voter participates in two elections, i.e. the congress and the presidential elections. In both elections he/she has to decide between two choices. This very feature of the US election system requires that the mental state is represented by a 2-qubit state corresponding to the superposition of 4 different choices (e.g. for republicans in the congress; for the president as a democrat). The main issue of this paper is to describe the dynamics of the voters’ mental states taking in account the mental and socio- political environment. What is truly novel in this paper is that instead of using Schr”odinger’s equation to describe the dynamics in an absence of interactions, we here apply the quantum master equation. This equation describes quantum decoherence, i.e., resolution from superposition to a definite choice.
See on arxiv.org

04
Mar
15

Quantum Dynamics Power Point

See on Scoop.itBounded Rationality and Beyond

See on mypage.iu.edu

04
Mar
15

Measuring Online Social Bubbles

See on Scoop.itPapers

Social media have quickly become a prevalent channel to access information, spread ideas, and influence opinions. However, it has been suggested that social and algorithmic filtering may cause exposure to less diverse points of view, and even foster polarization and misinformation. Here we explore and validate this hypothesis quantitatively for the first time, at the collective and individual levels, by mining three massive datasets of web traffic, search logs, and Twitter posts. Our analysis shows that collectively, people access information from a significantly narrower spectrum of sources through social media and email, compared to search. The significance of this finding for individual exposure is revealed by investigating the relationship between the diversity of information sources experienced by users at the collective and individual level. There is a strong correlation between collective and individual diversity, supporting the notion that when we use social media we find ourselves inside “social bubbles”. Our results could lead to a deeper understanding of how technology biases our exposure to new information.


Measuring Online Social Bubbles
Dimitar Nikolov, Diego F. M. Oliveira, Alessandro Flammini, Filippo Menczer

http://arxiv.org/abs/1502.07162


See on arxiv.org

04
Mar
15

Oscillation Detection and Analysis in Power Systems

See on Scoop.itCoCo: Collective Dynamics of Complex Systems Research Group
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Collective Dynamics of Complex Systems Research Group Seminar Series March 4, 2015 Ning Zhou (Electrical and Computer Engineering, Binghamton University) “Oscillation…

See on vimeo.com

04
Mar
15

Alzheimer’s Protein Appears At This Incredibly Young Age – PsyBlog

See on Scoop.itBounded Rationality and Beyond

The young age at which amyloid protein, a hallmark of Alzheimer’s, begins to appear in the brain.

 

Amyloid protein, which is a hallmark of Alzheimer’s disease, has been detected in people as young as 20, a new study finds.

This is much earlier than any scientists previously thought.

Amyloid protein is strongly associated with Alzheimer’s disease.

It eventually forms in clumps outside the neurons.

Professor Changiz Geula, who led the study, said:

“Discovering that amyloid begins to accumulate so early in life is unprecedented.

This is very significant.

We know that amyloid, when present for long periods of time, is bad for you.”

See on spring.org.uk




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