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Università della Svizzera italiana

Analysis and optimization of task granularity on the Java virtual machine

Rosà, Andrea ; Binder, Walter (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO008.

Task granularity, i.e., the amount of work performed by parallel tasks, is a key performance attribute of parallel applications. On the one hand, fine-grained tasks (i.e., small tasks carrying out few computations) may introduce considerable parallelization overheads. On the other hand, coarse-grained tasks (i.e., large tasks performing substantial computations) may not fully utilize the...

Università della Svizzera italiana

Move people or move the plant? : Business travel and relocation choices of firms

Rossi, Federica ; Maggi, Rico (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO007.

This dissertation proposes three empirical essays on firms’ location-related behaviour, focusing on two strategic issues: business travel plans and relocation choices. The first chapter studies the potential impact on business travel of the future high-speed railway line project, called AlpTransit, which in the meantime links Lugano, the small economic hub of the southern part of...

Accès public à partir du 3 août 2019
Università della Svizzera italiana

Journalists arguing newsmaking decisions on the basis of anticipated audience uptake : a study of argumentation in the newsroom

Luciani, Margherita ; Rocci, Andrea (Dir.) ; Perrin, Daniel (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018COM006.

This thesis sets out to explore journalists’ anticipatory reasoning on audience uptake, i.e. on the ways in which the audience will react to news. In order to reach this goal, I conduct an argumentative analysis of various types of newsroom activities. The analysis sheds light on journalists’ reasoning processes concerning audience uptake that lead them to broadcast/publish one certain...

Università della Svizzera italiana

Reusing constraint proofs in symbolic analysis

Chen, Meixian ; Pezzè, Mauro (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO007.

Symbolic analysis is an important element of program verification and automatic testing. Symbolic analysis techniques abstract program properties as expressions of symbolic input values to characterise the program logical constraints, and rely on Satisfiability Modulo Theories (SMT) solvers to both validate the satisfiability of the constraint expression and verify the corresponding program...

Accès public à partir du 3 juil. 2020
Università della Svizzera italiana

Strategies to access and manage donations for humanitarian operations

Urrea Castaño, Gloria Cecilia ; Maggi, Rico (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO006.

Scarcity of funding and high competition among organizations are typical characteristics of the humanitarian setting, which create high uncertainty for humanitarian organizations (HOs) regarding their ability to access and manage the required donations for their operations. In contrast with past research, which usually considers that HOs have a passive role in the donations process, the main...

Università della Svizzera italiana

New architectures for very deep learning

Srivastava, Rupesh Kumar ; Schmidhuber, Jürgen (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO006.

Artificial Neural Networks are increasingly being used in complex real- world applications because many-layered (i.e., deep) architectures can now be trained on large quantities of data. However, training even deeper, and therefore more powerful networks, has hit a barrier due to fundamental limitations in the design of existing networks. This thesis develops new architectures that, for the...

Università della Svizzera italiana

The role of context in human memory augmentation

Niforatos, Evangelos ; Langheinrich, Marc (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO005.

Technology has always had a direct impact on what humans remember. In the era of smartphones and wearable devices, people easily capture on a daily basis information and videos, which can help them remember past experiences and attained knowledge, or simply evoke memories for reminiscing. The increasing use of such ubiquitous devices and technologies produces a sheer volume of pictures and...

Università della Svizzera italiana

Corporate governance issues and performance of initial public offerings

Seistrajkova, Biljana ; Nowak, Eric (Dir.) ; Degeorge, François (Codir.) ; Habib, Michel (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO005.

In my PhD thesis I analyze corporate governance issues of initial public offerings and their subsequent performance. In the first chapter I find that the first-day return of newly issued subsidiary stocks (equity carve-outs) is explained by the reporting distortions in the pre-IPO period, conditioned on whether the executives and directors of the subsidiary received stock options with an...

Università della Svizzera italiana

Understanding the effects of communication and engagement in a social marketing intervention on children’s eating behavior : design, measurement and evaluation

Rangelov, Natalie ; Suggs, Suzanne (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017COM014.

The prevalence of overweight and obesity represents a serious health problem, and is a risk factor for several non- communicable diseases. Poor nutrition and lack of regular physical activity are among the primary determinants of overweight and obesity. Data show that overweight and obesity rates are high in, and that the Swiss population does not adhere to the nutritional guidelines provided...

Università della Svizzera italiana

Automating test oracles generation

Goffi, Alberto ; Pezzè, Mauro (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO004.

Software systems play a more and more important role in our everyday life. Many relevant human activities nowadays involve the execution of a piece of software. Software has to be reliable to deliver the expected behavior, and assessing the quality of software is of primary importance to reduce the risk of runtime errors. Software testing is the most common quality assessing technique for...