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Università della Svizzera italiana

1001stories+ : An effective and affordable multi-media, multi-format communication framework for cultural heritage institutions

Negrini, Michela ; Paolini, Paolo (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014COM013.

Over the last decade, there has been an increasing number of technologies and devices (including smartphones, tablets and alike) able to provide new perspectives for the use of multimedia applications in the field of Cultural Heritage. This work arises from the interest in providing better authoring/delivery possibilities to cultural heritage institutions (small and medium sized in particular). ...

Università della Svizzera italiana

Abandon ship? : party brands and politicians’ responses to a political scandal

Daniele, Gianmarco ; Galletta, Sergio ; Geys, Benny

In this article, we study politicians’ – rather than voters’ – responses to the main political scandal in Italian recent history (Tangentopoli), and overcome endogeneity concerns by analysing the local implications of this national corruption scandal. We find that local politicians withdraw support for incumbents in parties hit by Tangentopoli – inducing increased political...

Università della Svizzera italiana

Accounting based valuation and implied discount factor

Brughelli, Moreno ; Barone-Adesi, Giovanni (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2012 ; 2012ECO003.

The focus of this doctoral thesis is on the determination of the implied cost of capital in the equity market. Three issues are investigated in detail: the relations between the cost of equity capital, the credit spread and the economic growth; the links between realized market returns and the cost of capital; and the forecasting power of the implied discount factor in predicting market...

Università della Svizzera italiana

Accounting for WTP/WTA discrepancy in discrete choice models : discussion of policy implications based on two freight transport stated choice experiments

Masiero, Lorenzo ; Maggi, Rico

A key input in cost-benefit analysis is represented by the marginal rate of substitution which expresses the willingness to pay, or its counterpart willingness to accept, for both market and non-market goods. The consistent discrepancy between these two measures observed in the literature suggests the need to estimate reference dependent models able to capturing loss aversion by...

Università della Svizzera italiana

Accuracy of performance counter measurements

Zaparanuks, Dmitrijs ; Jovic, Milan ; Hauswirth, Matthias

Many workload characterization studies depend on accurate measurements of the cost of executing a piece of code. Often these measurements are conducted using infrastructures to access hardware performance counters. Most modern processors provide such counters to count micro-architectural events such as retired instructions or clock cycles. These counters can be diffocult to configure, may not be...

Università della Svizzera italiana

Accurate short-term yield curve forecasting using functional gradient descent

Audrino, Francesco ; Trojani, Fabio

In: Journal of financial econometrics, 2007, vol. 5, no. 4, p. 591–623

We propose a multivariate nonparametric technique for generating reliable shortterm historical yield curve scenarios and confidence intervals. The approach is based on a Functional Gradient Descent (FGD) estimation of the conditional mean vector and covariance matrix of a multivariate interest rate series. It is computationally feasible in large dimensions and it can account for non- linearities...

Università della Svizzera italiana

Adaptive Hypermedia Systems design : a method from practice

Armani, Jacopo ; Botturi, Luca

In: WWW/Internet 2003, Algarve, Portugal, 2003, p. 843

Adaptive Hypermedia Systems represent a great potential for e-learning; nevertheless instructors and designers find it difficult to develop adaptive application within their framework. This paper presents a map-based visual design method, developed at the AHS atelier in the University of Lugano and tailored for non-technical people, for designing adaptive courseware according to different...

Università della Svizzera italiana

Adaptive query-based sampling of distributed collections

Baillie, Mark ; Azzopardi, Leif ; Crestani, Fabio

In: Lecture Notes in Computer Science, 2006, vol. 4209, p. 316-328

As part of a Distributed Information Retrieval system a description of each remote information resource, archive or repository is usually stored centrally in order to facilitate resource selection. The acquisition of precise resource descriptions is therefore an important phase in Distributed Information Retrieval, as the quality of such representations will impact on selection accuracy, and...

Università della Svizzera italiana

Adaptive routing in ad hoc wireless multi-hop networks

Ducatelle, Frederick ; Gambardella, Luca Maria (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2007 ; 2007INFO001.

Ad hoc wireless multi-hop networks (AHWMNs) are communication networks that consist entirely of wireless nodes, placed together in an ad hoc manner, i.e. with minimal prior planning. All nodes have routing capabilities, and forward data packets for other nodes in multi-hop fashion. Nodes can enter or leave the network at any time, and may be mobile, so that the network topology continuously...

Università della Svizzera italiana

Adoption and use of new information technology

Alderighi, Marco ; Maggi, Rico

A general result of information theory is that asymmetric information generates agent rents and distortions in production. In this paper, we analyse the impact of asymmetric information on adoption and use of information technology (IT). Depending on the conctracting scheme, different results may occur. We explore the differences between the case of contractible investment and the case of...