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Università della Svizzera italiana

Essays in asset pricing

Orlowski, Piotr ; Trojani, Fabio (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017ECO002.

My dissertation consists of three chapters, each of which focuses on a different area of research in asset pricing. The first chapter's focal point is the measurement of the premium for jump risks in index option markets. The second chapter is devoted to non- parametric measurement of pricing kernel dispersion. The third chapter contributes to the literature on latent state variable recovery in...

Università della Svizzera italiana

Geometric deep learning for shape analysis : extending deep learning techniques to non-Euclidean manifolds

Boscaini, Davide ; Bronstein, Michael (Dir.) ; Masci, Jonathan (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO009.

The past decade in computer vision research has witnessed the re-emergence of artificial neural networks (ANN), and in particular convolutional neural network (CNN) techniques, allowing to learn powerful feature representations from large collections of data. Nowadays these techniques are better known under the umbrella term deep learning and have achieved a breakthrough in performance in a...

Université de Neuchâtel

Process based modeling of the karstification processes in the region of Tulum, Mexico

Maqueda, Axayacatl ; Renard, Philippe (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Caves are important since they are preferential paths for groundwater flow. Knowledge of caves or karst is essential for proper management of water resources, but the exploration of caves is a major challenge. An alternative to study caves and their structure is to simulate the processes related to cave growth. The motivation of this thesis is to study large karst networks in the region of...

Université de Neuchâtel

Chloroplast lipid droplet type II NAD(P)H oxidoreductase, NDC1, is essential for vitamin E and K1 metabolism

Eugeni Piller, Lucia ; Kessler, Felix (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Plant cells in different tissues contain specialized organelles belonging to the family of plastids. The chloroplast is the most prominent family member and responsible for photosynthesis in leaves. Most plastid types contain lipoprotein particles ("lipid droplets") termed plastoglobules. Little is known about plastoglobules that were long regarded as passive storage droplets. Indeed, the...

Université de Neuchâtel

Conjugacy growth series of groups

Mercier, Valentin ; Ciobanu, Laura I. (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

In this thesis we study the conjugacy growth series of several group constructions in terms of the standard and the conjugacy growth series of the building groups, with a specific generating set. This includes (1) groups of the form $G\wr L$ when $L$ admits a Cayley graph that is a tree, (2) graph products, (3) a specific free product of $\mathbb{Z}*\mathbb{Z}$ with amalgamation over...

Université de Neuchâtel

Random sampling with repulsion

Wilhelm, Matthieu ; Tillé, Yves (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

In this thesis, we explore the concept of repulsion and exploit it to develop new sampling designs. The first chapter is a review of the literature about sampling in finite population and consists of two distinct parts. In the first one, we suggest three principles as guidelines for designing a survey: randomization, overrepresentation and restriction. In the second part, we review the...

Université de Fribourg

A Framework For Abstracting, Designing And Building Tangible Gesture Interactive Systems

Angelini, Leonardo ; Lalanne, Denis (Dir.)

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...

Università della Svizzera italiana

Cell mechanics in flow : algorithms and applications

Lykov, Kirill ; Pivkin, Igor V. (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO008.

The computer simulations are pervasively used to improve the knowledge about biophysical phenomena and to quantify effects which are difficult to study experimentally. Generally, the numerical methods and models are desired to be as accurate as possible on the chosen length and time scales, but, at the same time, affordable in terms of computations. Until recently, the cell mechanics and blood...

Université de Neuchâtel

Calix[n]tetrahydrofuran[4-n]pyrrolidines : optimized synthesis via hydrogenation of calix[n]furan[4-n]pyrroles, conformational study and preliminary work on their transition metal complexes

Maupillier, William ; Neier, Reinhard (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2016.

An hydrogenation method for the reduction of the easy accessible meso-octaalkylporphirinogen (calix[4]pyrrole) has previously been reported in our group. This “standard method” leads to an unsatisfactory conversion to the saturated analogue, calix[4]pyrrolidine (18% yield determined by GC). However using large excess of the catalyst leads to total conversion. In order to study...

Université de Neuchâtel

A molecular approach to microeukaryotic diversity, ecology and biogeography associated with Sphagnum mosses

Singer, David ; Lara, Enrique (Dir.) ; Mitchell, Edward AD (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Despite the fact that free-living microeukaryotes compose the major part of Earth’s biodiversity and play numerous essential roles in ecosystems, knowledge on their true diversity, ecology and their global patterns of distribution remain limited. In this sense, the objectives of this thesis are 1) to increase the knowledge on the diversity of microeukaryotes 2) characterize the ecological...