We propose a social coherence-based model and simulation framework to study the dynamics of multi-agent organizations. This model rests on the notion of social commitment to represent all the agents’ explicit inter-dependencies including roles and organizational structures. A local coherentist approach is used that, along with a sanction policy, ensures social control in the system and the emer...

We highlight the importance of dialogue management in systems that support mixed-initiative interaction. For concreteness, we focus on interaction with recommender systems. We propose an approach that uses both a dialogue grammar and a recommendation strategy. The dialogue grammar makes explicit the opportunities the user and system have for seizing and ceding the initiative. But it maintains o...

Prosody is critical in conveying topic coherence and the salience of information in speech. In this study we propose that the overall coherence is brought about through pitch level structuring of phrases at both the local level of hierarchical phrase unit positioning and the global level of pitch baseline rise and fall as climax and resolution. Our results show that prosody has critical importa...

The effective exciton coherence length in molecular aggregates is calculated using a nonlocal, real-space representation of the linear optical response. Simulations of polarized absorption and linear dichroism demonstrate that the spectra depend on local properties of the molecular aggregate segment where the exciton coherence is delocalized. This allows us to limit the calculations to small se...

The quantization of resistances in the quantum Hall effect and ballistic transport through quantum point contacts is compared with the quantization of the charge relaxation resistance of a coherent mesoscopic capacitor. While the former two require the existence of a perfectly transmitting channel, the charge relaxation resistance remains quantized for arbitrary backscattering. The quantum Hall...

We define the independent natural extension of two local models for the general case of infinite spaces, using both sets of desirable gambles and conditional lower previsions. In contrast to Miranda and Zaffalon (2015), we adopt Williams-coherence instead of Walley-coherence. We show that our notion of independent natural extension always exists—whereas theirs does not—and that it satisfies var...

INTRODUCTION It is unknown how the brain coordinates decisions to withstand personal costs in order to prevent other individuals' distress. Here we test whether local field potential (LFP) oscillations between brain regions create "neural contexts" that select specific brain functions and encode the outcomes of these types of intersubjective decisions. METHODS Rats participated in an "Intersu...