Time-varying electromagnetic media: opinion

Opinion formation with time-varying bounded confidence

When individuals in social groups communicate with one another and are under the influence of neighbors' opinions, they typically revise their own opinions to adapt to such peer opinions. The individual threshold of bounded confidence will thus be affected by both a change in individual confidence and by neighbor influence. Individuals thus update their own opinions with new bounded confidence,...

Nonclassical Properties of Superpositions of Coherent and Squeezed States for Electromagnetic Fields in Time-Varying Media

Real-Time Filtering for Pulsing Public Opinion in Social Media

When analysing social media conversations, in search of the public opinion about an unfolding event that is being discussed in real-time (e.g., presidential debates, major speeches, etc.), it is important to distinguish between two groups of participants: opinion-makers and opinion-holders. To address this problem, we propose a supervised machinelearning approach, which uses inexpensively acqui...

Electromagnetic Time-Reversal Imaging in Changing Media: Experiment and Analysis

An experimental study is performed on electromagnetic time reversal in highly scattering environments, with a particular focus on performance when environmental conditions change. In particular, we consider the case for which there is a mismatch between the Green’s function used on the forward measurement and that used for time-reversal inversion. We examine the degradation in the time-reversal...

1 Electromagnetic Time - Reversal - Based Target Detection in Uncertain Media

An experimental study is performed on imaging targets that are situated in a highly scattering environment, employing electromagnetic time-reversal (ETR) methods. A particular focus is placed on performance when the electrical properties of the background environment (medium) are uncertain. It is assumed that the (unknown) medium characteristic of the scattered fields represents one sample from...