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Università della Svizzera italiana

Identity reinforcement or risky organizational change? : Category spanning in humanitarian projects

Kooijman, Eva A. P. ; Beck, Nikolaus

In: Administrative sciences, 2021, vol. 11, no. 4, p. 17

In this study, we investigate the consequences of organizational change that consist of adding new categories to the portfolio of humanitarian organizations. Our aim is to discern differences in these consequences between specialist and generalist organizations. Previous research has shown that spanning categories lead to disadvantages in the evaluation of organizations by audience members in...

Università della Svizzera italiana

Managing the trade-off between groundwater resources and large-scale agriculture : the case of pistachio production in Iran

Akhavan, Ali ; Gonçalves, Paulo

In: System dynamics review, 2021, vol. 37, no. 2-3, p. 155-196

Benefiting from historically favorable conditions (e.g. low costs, fertile land, and abundant water), pistachio producers in Rafsanjan, Iran, have flourished, with pistachio orchards and production growing dramatically since the 1970s. Today, however, the enormous increase in water consumption associated with pistachio production has severely depleted groundwater aquifers, causing widespread...

Università della Svizzera italiana

Block-enhanced precision matrix estimation for large-scale datasets

Eftekhari, Aryan ; Pasadakis, Dimosthenis ; Bollhöfer, Matthias ; Scheidegger, Simon ; Schenk, Olaf

In: Journal of computational science, 2021, vol. 53, p. 13

The ℓ1-regularized Gaussian maximum likelihood method is a common approach for sparse precision matrix estimation, but one that poses a computational challenge for high-dimensional datasets. We present a novel ℓ1- regularized maximum likelihood method for performant large-scale sparse precision matrix estimation utilizing the block structures in the underlying computations. We identify the...

Università della Svizzera italiana

Joint desirability foundations of social choice and opinion pooling

Casanova, Arianna ; Miranda, Enrique ; Zaffalon, Marco

In: Annals of Mathematics and Artificial Intelligence, 2021, no. 89, p. 965–1011

We develop joint foundations for the fields of social choice and opinion pooling using coherent sets of desirable gambles, a general uncertainty model that allows to encompass both complete and incomplete preferences. This leads on the one hand to a new perspective of traditional results of social choice (in particular Arrow’s theorem as well as sufficient conditions for the existence of an...

Università della Svizzera italiana

Inflation bald als Folgeeffekt der COVID-19-Pandemie? = Inflation soon a consequence of the COVID-19 pandemic?

Beretta, Edoardo

In: List Forum für Wirtschafts- und Finanzpolitik, 2021, vol. 46, no. 3, p. 359-377

Although COVID-19 pandemic has so far been assumed to have recessivedeflationary consequences due to the dramatic deterioration of economic forecasts worldwide, inflation risks cannot be excluded. What effects might result from the combination of billion-high liquidity injections and high decline in production levels as well as strict (and costly) security and protection requirements? And why...

Università della Svizzera italiana

6D virtual sensor for wrench estimation in robotized interaction tasks exploiting extended Kalman filter

Roveda, Loris ; Bussolan, Andrea ; Braghin, Francesco ; Piga, Dario

In: Machines, 2020, vol. 8, no. 4, p. 17

Industrial robots are commonly used to perform interaction tasks (such as assemblies or polishing), requiring the robot to be in contact with the surrounding environment. Such environments are (partially) unknown to the robot controller. Therefore, there is the need to implement interaction controllers capable of suitably reacting to the established contacts. Although standard force controllers...

Università della Svizzera italiana

Testing machine learning based systems : a systematic mapping

Riccio, Vincenzo ; Jahangirova, Gunel ; Stocco, Andrea ; Humbatova, Nargiz ; Weiss, Michael ; Tonella, Paolo

In: Empirical Software Engineering, 2020, vol. 25, no. 6, p. 5193–5254

Context: A Machine Learning based System (MLS) is a software system including one or more components that learn how to perform a task from a given data set. The increasing adoption of MLSs in safety critical domains such as autonomous driving, healthcare, and finance has fostered much attention towards the quality assurance of such systems. Despite the advances in software testing, MLSs bring...

Università della Svizzera italiana

Immigration policy and immigrants' sleep : evidence from DACA

Giuntella, Osea ; Lonsky, Jakub ; Mazzonna, Fabrizio ; Stella, Luca

In: Journal of economic behavior and organization, 2021, vol. 182, no. February, p. 12 p

Stress is associated with sleep problems and poor sleep is linked to mental health and depression symptoms. The stress associated with immigrant status and immigration policy can directly affect mental health. While previous studies have documented the significant relationship between immigration policy and the physical and mental health of immigrants, we know little about the effects of...

Università della Svizzera italiana

Disentangling individual phases in the hunted vs. farmed meat supply chain : exploring hunters’ perceptions in Italy

Marescotti, Maria Elena ; Demartini, Eugenio ; Gibbert, Michael ; Viganò, Roberto ; Gaviglio, Anna

In: Foods, 2021, vol. 10, no. 1, p. 15 p

The growing body of literature concerning the hunted wild game meat (HWGM) supply chain is mainly focused on the final consumer, while little is known about upstream production processes. Even though the hunter plays a central role here, it is not well understood how hunters themselves perceive their role in the various phases of the production process. The present study explores Italian...

Università della Svizzera italiana

Institutional barriers to participation in EU framework programs : contrasting the Swiss and UK cases

Cavallaro, Marco ; Lepori, Benedetto

In: Scientometrics, 2021, vol. 126, no. 2, p. 1311–1328

The aim of this study was to examine how institutional barriers arising from policy decisions influence the level of participation of third- party countries in European Framework Programs (EU-FPs). To achieve this, we contrasted the effect of EU funding restrictions following Switzerland’s 2014 reclassification as a “third country” in Horizon 2020, and the political uncertainties resulting...