Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO002.
Causal loops are loops in cause-effect chains: An effect can be the cause of that effect's cause. We show that causal loops can be unproblematic, and explore them from different points of view. This thesis is motivated by quantum theory, general relativity, and quantum gravity. By accepting all of quantum theory one can ask whether the possibility to take superpositions extends to causal...
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Thèse de doctorat : Université de Fribourg, 2009.
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Thèse de doctorat : Université de Fribourg, 2017 ; no. 2003.
This thesis discusses tangible gesture interaction, a novel paradigm for interacting with computer that blends concepts from the more popular fields of tangible interaction and gesture interaction. Taking advantage of the human innate abilities to manipulate physical objects and to communicate through gestures, tangible gesture interaction is particularly interesting for interacting in smart...
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Thèse de doctorat : Université de Fribourg, 2020.
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Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO004.
Different coordinate systems allow to uniquely determine the position of a geometric element in space. In this dissertation, we consider a coordinate system that lets us determine the position of a two-dimensional point in the plane with respect to an arbitrary simple polygon. Coordinates of this system are called generalized barycentric coordinates in 2D and are widely used in computer...
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In dieser Arbeit führen wir das Konzept von Argumentations-Systemen ein, die ein Hilfsmittel zur Repräsentation von unsicherer Information mit Hilfe von Informations-Algebren und -Systemen sowie Wahrscheinlichkeits-Algebren darstellen. Argumentations-Systeme sind eine Verallgemeinerung von Annahmen- basierten System und propositionellen Argumentations-Systemen und können sehr allgemeine...
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Thèse de doctorat : Università della Svizzera italiana, 2011 ; 2011INFO006.
Coarse Grained Reconfigurable Arrays have emerged, in recent years, as promising candidates to realize efficient reconfigurable platforms. CGRAs feature high computational density, flexible routing interconnect and rapid reconfiguration, characteristics that make them well-suited to speed up execution of computational kernels. A number of designs embodying the CGRA concept have been proposed...
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Thèse de doctorat : Università della Svizzera italiana, 2008 ; 2008INFO003.
Credal networks are probabilistic graphical models that extend Bayesian nets to deal with imprecision in probability, and can actually be regarded as sets of Bayesian nets. Credal nets appear to be powerful means to represent and deal with many important and challenging problems in uncertain reasoning. The counterpart of having more freedom in the modeling phase is an increased inferential...
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Thèse de doctorat : Université de Fribourg, 2017 ; n⁰ 2055.
Cette recherche étudie les relations entre les organisations non-gouvernementales internationales (ONGI) et les communes lors de la mise en place de projets d’accès à l’eau potable pour mettre en lumière les inégalités partenariales qui apparaissent entre ces acteurs et qui sont sources de blocages au développement. La recherche vise aussi à comprendre quel est l’impact de ces...
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Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO015.
We investigate the shape of risk appetite when the bank is financed also with contingent convertible bonds (CoCos). Our contribution to the existent literature is to assess risk appetite in a multi-dimensional perspective and to account for differences among banks' clusters, especially in a world with CoCos and policy rates approaching zero or negative figures. In our model, the bank objective...
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