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Università della Svizzera italiana

High-performance state-machine replication

Jalili Marandi, Parisa ; Pedone, Fernando (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO006.

Replication, a common approach to protecting applications against failures, refers to maintaining several copies of a service on independent machines (replicas). Unlike a stand-alone service, a replicated service remains available to its clients despite the failure of some of its copies. Consistency among replicas is an immediate concern raised by replication. In effect, an important factor...

Università della Svizzera italiana

A self-healing framework for general software systems

Perino, Nicolò ; Pezzè, Mauro (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO005.

Modern systems must guarantee high reliability, availability, and efficiency. Their complexity, exacerbated by the dynamic integration with other systems, the use of third- party services and the various different environments where they run, challenges development practices, tools and testing techniques. Testing cannot identify and remove all possible faults, thus faulty conditions may escape...

Università della Svizzera italiana

Query refinement for patent prior art search

Mahdabi, Parvaz ; Crestani, Fabio (Dir.) ; Landoni, Monica (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO004.

A patent is a contract between the inventor and the state, granting a limited time period to the inventor to exploit his invention. In exchange, the inventor must put a detailed description of his invention in the public domain. Patents can encourage innovation and economic growth but at the time of economic crisis patents can hamper such growth. The long duration of the application process...

Università della Svizzera italiana

Are local tax rates strategic complements or strategic substitutes?

Parchet, Raphaël

The identification of strategic interactions among local governments is typically plagued by endogeneity problems. This paper proposes an identification strategy that makes use of a multi-tier federal system. State-level fiscal reforms provide an arguably exogenous source of variation in tax rates of local jurisdictions. Moreover, state borders spatially bound the effects of state-level...

Università della Svizzera italiana

Automatically generating complex test cases from simple ones

Rubinov, Konstantin ; Pezzè, Mauro (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2013 ; 2013INFO007.

While source code expresses and implements design considerations for software system, test cases capture and represent the domain knowledge of software developer, her assumptions on the implicit and explicit interaction protocols in the system, and the expected behavior of different modules of the system in normal and exceptional conditions. Moreover, test cases capture information about the...

Università della Svizzera italiana

Costly institutions as substitutes : novelty and limits of the Coasian approach

Pagano, Ugo ; Vatiero, Massimiliano

One of the main contributions of Ronald H. Coase was to demonstrate how mainstream economics was based on a contradictory amalgam of costly physical inputs and free institutional resources, and to gave origin the economics of institutions: each institution is a mode of allocation and organization of economic resources that is to be investigated. In particular, none of the institutions...

Università della Svizzera italiana

The demand for school meal services by Swiss households

Filippini, Massimo ; Masiero, Giuliano ; Medici, Diego

In: Annals of Public and Cooperative Economics, 2014, vol. 85, no. 3, p. 475-495

In this paper we investigate the household demand for childcare during lunchtime at school using a stated preferences approach. Data are collected through phone- structured interviews to 905 residents with children in the German-speaking region of Switzerland during 2007. Poisson models with random and fixed effects are used to explore factors affecting the demand. Ordinal probit models are also...

Università della Svizzera italiana

Workload characterization of JVM languages

Sarimbekov, Aibek ; Binder, Walter (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO003.

Being developed with a single language in mind, namely Java, the Java Virtual Machine (JVM) nowadays is targeted by numerous programming languages. Automatic memory management, Just-In-Time (JIT) compilation, and adaptive optimizations provided by the JVM make it an attractive target for different language implementations. Even though being targeted by so many languages, the JVM has been tuned...

Università della Svizzera italiana

End-user development of mashups using live natural language programming

Aghaee, Saeed ; Pautasso, Cesare (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO002.

The emergence of the long-tail in the market of software applications is shifting the role of end-users from mere consumers to becoming developers of applications addressing their unique, personal, and transient needs. On the Web, a popular form of such applications is called mashup, built out of the lightweight composition of Web APIs (reusable software components delivered as a service...

Università della Svizzera italiana

Social support and acceptance among rheumatoid arthritis patients : “learning how to live with chronic pain”

Kostova, Zlatina ; Schulz, Peter J. (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014COM008.

Chronic pain sufferers with diseases such as Rheumatoid Arthritis (RA) are a category of patients that feels stigmatized, lacking understanding and support from the surrounding social environment (Davison et al., 2000). The invisible and unpredictable character of RA makes it very difficult to be recognized and understood by family, friends, colleagues, and so on, and patients often complain...