| 1. |
- Grosinger, Jasmin, 1984-, et al.
(author)
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Proactivity through equilibrium maintenance with fuzzy desirability
- 2017
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In: 2017 IEEE International Conference on Systems, Man, and Cybernetics (SMC). - : Institute of Electrical and Electronics Engineers (IEEE). - 9781538616451 - 9781538616444 - 9781538616468
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Conference paper (peer-reviewed)abstract
- Proactive cognitive agents need to be capable ofboth generating their own goals and enacting them. In thispaper, we cast this problem as that ofmaintaining equilibrium,that is, seeking opportunities to act that keep the system indesirable states while avoiding undesirable ones. We characterizedesirability of states as graded preferences, using mechanismsfrom the field of fuzzy logic. As a result, opportunities for anagent to act can also be graded, and their relative preferencecan be used to infer when and how to act. This paper providesa formal description of our computational framework, andillustrates how the use of degrees of desirability leads to well-informed choices of action.
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| 2. |
- Ferrari, S., et al.
(author)
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Visualizing Vortex Clusters in the Wake of a High-Speed Train
- 2017
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In: 2017 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN, AND CYBERNETICS (SMC). - 1062-922X. - 9781538616451 ; 2017-January, s. 683-688
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Conference paper (peer-reviewed)abstract
- Visualization of fluid flows at a high-Reynolds number (Re similar to 10(5)) presents difficulties for user comprehension due to density and ambiguous interactions between vortices. Prior work has used cluster-based reduced-order modelling (CROM) to analyze the wake of a High-Speed Train (HST) with Re = 86,000. In this paper, we present a novel surface visualization to convey the spatiotemporal changes undergone by clustered vortices in the HST wake. This visualization is accomplished through dimensional reduction of 3D volumetric vortices into 1D ridges, and physics-based feature tracking. The result is 3D surfaces visualizing the behavior of the vortices in the HST wake. Compared to conventional still-image representations, these surfaces allow the user to quickly compare and analyze the two shedding cycles identified via CROM. The spatiotemporal differences of the primary vortices in these shedding cycles provide analytic insight to influence the aerodynamics of the HST.
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