October 03, 2017

Evolution of Social Power for Opinion Dynamics Networks

  • Iglesias Rey S.
  • Silva A.
  • Valenzuela P.

This paper studies the evolution of interpersonal influences in a group as they discuss a sequence of issues following a particular opinion dynamics model. In this work, we propose a general opinion dynamics model and we extend it to the evolution of influence networks using the model of reflected appraisal proposed by Friendkin. We show that DeGroots's and Friendkin-Johnsen's models of opinion dynamics are particular cases of our proposal. We establish a dynamical model of the evolution of social influence networks between issues. Moreover, we prove its continuity and the existence of an equilibria, generalization of the DeGroot-Friedkin's model. This work is a step towards providing a solid formulation of the evolution of self-appraisal over a sequence of issues.

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August 09, 2017

A Cloud Native Approach to 5G Network Slicing

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  • Miller R.
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5G networks will have to support a set of very diverse and often extreme requirements. Network slicing offers an effective way to unlock the full potential of 5G networks and meet those requirements on a shared network infrastructure. This paper presents a cloud native approach to network slicing. The cloud ...

August 01, 2017

Modeling and simulation of RSOA with a dual-electrode configuration

  • De Valicourt G.
  • Liu Z.
  • Violas M.
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Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

July 12, 2017

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  • Chen R.
  • Christof Fetzer
  • Le D.
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How to preserve users' privacy while supporting high-utility analytics for low-latency stream processing? To answer this question: we describe the design, implementation and evaluation of PRIVAPPROX, a data analytics system for privacy-preserving stream processing. PRIVAPPROX provides three properties: (i) Privacy: zero-knowledge privacy (ezk) guarantees for users, a privacy bound tighter ...