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Université de Fribourg

Unsupervised and Parameter-Free Clustering of Large Graphs for Knowledge Exploration and Recommendation

Lutov, Artem ; Cudré-Mauroux, Philippe (Dir.)

Thèse de doctorat : Université de Fribourg, 2020 ; no. 2192.

We live in an Information Age, facing a rapid increase in the amount of information that is exchanged. This permanently growing amount of data makes the ability to store, analyze, and act upon information a primary concern (in addition to the obvious privacy, legal and ethical issues that are related), raising the question: “How can one consume Big Data and transformit into actionable...

Université de Neuchâtel

Ecological immunity of "Anopheles gambiae" mosquitoes

Barreaux, Antoine ; Koella, Jacob (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2016.

Malaria is a vector borne disease caused by protozoan parasites and transmitted to humans by mosquitoes. It is one of the most deadly infectious diseases in the world, with more than one million deaths each year. Malaria is even more worrying in the context of climate change, as global warming is predicted to increase the transmission to humans and to influence vector-parasite interactions. To...

Université de Neuchâtel

Living the prison : An ethnographic study of indefinite incarceration in Switzerland

Marti, Irene ; Hertz, Ellen (Dir.) ; Hostettler, Ueli (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2020 ; TH 2820.

During the first half of the 20th century, rehabilitation served as the main paradigm for criminal policy in Switzerland, as in most so-called Western countries. However, changing demands for security and public pressure over the past decades have led to a shift towards a more punitive and hard-line approach to crime. This ‘punitive turn’ in criminal policy has produced more investment...

Université de Neuchâtel

Towards compact ultralow phase noise lasers and microwave signals based on new approaches

Brochard, Pierre ; Südmeyer, Thomas (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

Today, the lowest phase noise microwave signals are generated optically by frequency division of an ultra-stable optical reference using a femtosecond frequency comb. In the commonly used approach, the ultra-stable optical reference is obtained by frequency-stabilizing a laser to a high-finesse ultra-low expansion optical cavity, and the frequency division is performed by optically locking a...

Université de Neuchâtel

Modeling heat and fluid flow in discrete fracture networks : application to fluid-driven seismicity and engineered geothermal systems

Jansen, Gunnar ; Miller, Stephen A. (Dir.) ; Valley, Benoît (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Understanding the dynamics of naturally fractured systems and fractured reservoirs in terms of flow, heat transport and fracture stability (e.g. earthquakes) is important for a range of applications including geothermal systems, waste water injection and natural fluid-driven seismicity. Many numerical codes exist that can simulate aspects of these dynamics, but in general require either expensive...

Université de Neuchâtel

Ontology engineering using formal concept analysis from unstructured textual data

Jabbari, Simin ; Stoffel, Kilian (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2019 ; 2806.

Knowledge extraction especially from unstructured data such as texts has been always considered as one of the highly demanded requests with lots of applications in almost all industries. Design and building of solutions that are capable of extracting knowledge, in an almost automated way, is not an easy task at all. Many researchers have proposed variety of methodologies and algorithms to...

Université de Neuchâtel

Conditioning groundwater flow parameters with iterative ensemble smoothers : analysis and approaches in the continuous and the discrete cases

Lam, Dan-Thuy ; Renard, Philippe (Dir.) ; Kerrou, Jaouher (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

Data assimilation (DA) consists in combining observations and predictions of a numerical model to produce an optimal estimate of the evolving state of a system. Over the last decade, DA methods based on the Ensemble Kalman Filter (EnKF) have been particularly explored in various geoscience fields for inverse modelling. Although this type of ensemble methods can handle high-dimensional systems,...

Université de Neuchâtel

Memories of the "liberation of Kosovo" among Albanian-speaking activists in Switzerland : narrating transnational belonging to the nation

Farquet, Romaine ; Dahinden, Janine (Dir.) ; Duijzings, Ger (Codir.) ; Schwander-Sievers, Stephanie (Codir.) ; Lacroix, Thomas (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

The Albanian-speaking population living in Switzerland mobilised massively on behalf of the national cause in Kosovo in the 1990s. After the end of the conflict, that saw the departure of the Serbian forces from Kosovo (1999), some of the Albanian-speaking activists from Switzerland returned to their homeland. Many others remained in Switzerland, where they largely diminished or terminated their...

Université de Fribourg

Italian Ex-Votos and ‘Pro Anima’ Images in the Late Middle Ages

Bacci, Michele

In: Ex-Voto. Votive Giving Across Cultures, 2016, p. 76-105

Ex-voto; Pro-Anima Images

Université de Neuchâtel

Rubidium vapour-cell frequency standards : metrology of optical and microwave frequency references

Moreno, William ; Mileti, Gaetano (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

This thesis concerns the development, study, and optimisation of compact and high-performance frequency references based on rubidium (Rb) vapour cells1. More specially, two Rb vapour-cell frequency references are studied: an optical-frequency reference at 1.5 μm and a double-resonance pulsed optically pumped (POP) atomic clock. The use of vapour cells allows compact frequency...