Université de Lausanne

A game theoretical approach to the algebraic counterpart of the Wagner hierarchy

Cabessa, Jérémie ; XXX, xxx (Dir.)

Thèse de doctorat : Université de Lausanne, 2007.

The Wagner hierarchy is known so far to be the most refined topological classification of $\omega$-rational languages. Also, the algebraic study of formal languages shows that these $\omega$-rational sets correspond precisely to the languages recognizable by finite pointed $\omega$-semigroups. Within this framework, we provide a construction of the algebraic counterpart of the Wagner hierarchy....

Université de Lausanne

Value/personality - attitude - behavior hierarchy and its impact on individual performance in the context of market orientation

Perrinjaquet, Amandine ; XXX, xxx (Dir.)

Thèse de doctorat : Université de Lausanne, 2007.

The purpose of this dissertation is to better understand how individual employees’ values and personality traits influence their attitudes toward market orientation; how such attitudes impact their market-oriented behaviors; and how in turn, these behaviors lead to their superior individual performance. To investigate these relationships, an empirical study was conducted in the French speaking...

Université de Lausanne

On solving fair exchange and related distributed problems in Byzantine environments

Rickebusch, Ian ; XXX, xxx (Dir.)

Thèse de doctorat : Université de Lausanne, 2007.

The solvability of the problem of fair exchange in a synchronous system subject to Byzantine failures is investigated in this work. The fair exchange problem arises when a group of processes are required to exchange digital items in a fair manner, which means that either each process obtains the item it was expecting or no process obtains any information on the inputs of others. After introducing...

Université de Lausanne

Development of a harmonised method for the profiling of amphetamine

Lock, Eric ; XXX, xxx (Dir.)

Thèse de doctorat : Université de Lausanne, 2005.

This Ph.D. thesis was carried out in parallel to an European project funded by the fourth framework programme of the European Commission (DG XII, Standards, Measurement and Testing). This project, named SMT-CT98-2277 was funded, for the Swiss part, by the Federal Office of Education and Science (OFES, Bern, Switzerland). The aim of the project was to develop a harmonised, collaboratively tested...

Université de Lausanne

The analysis of ecstasy tablets in a forensic drug intelligence perspective

Zingg, Christian ; XXX, xxx (Dir.)

Thèse de doctorat : Université de Lausanne, 2005.

The use by police services and inquiring agencies of forensic data in an intelligence perspective is still fragmentary and to some extent ignored. In order to increase the efficiency of criminal investigation to target illegal drug trafficking organisations and to provide valuable information about their methods, it is necessary to include and interpret objective drug analysis results already...

Université de Lausanne

The business model ontology a proposition in a design science approach

Osterwalder, Alexander ; XXX, xxx (Dir.)

Thèse de doctorat : Université de Lausanne, 2004.

The goal of this dissertation is to find and provide the basis for a managerial tool that allows a firm to easily express its business logic. The methodological basis for this work is design science, where the researcher builds an artifact to solve a specific problem. In this case the aim is to provide an ontology that makes it possible to explicit a firm's business model. In other words, the...