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Université de Fribourg

Social gamification in enterprise crowdsourcing

Afentoulidis, Gregory ; Szlávik, Zoltán ; Yang, Jie ; Bozzon, Alessandro

In: Proceedings of 10th ACM Conference on Web Science (WebSci’18) Amsterdam, 27-30 May 2018

Enterprise crowdsourcing capitalises on the availability of employ-ees for in-house data processing. Gamification techniques can help aligning employees’ motivation to the crowdsourcing endeavour. Although hitherto, research efforts were able to unravel the wide arsenal of gamification techniques to construct engagement loops, little research has shed light into the social game dynamics...

Université de Fribourg

The Â-genus of S¹-manifolds with finite second homotopy group

Amann, Manuel ; Dessai, Anand

In: Comptes rendus Mathematique

We construct simply connected smooth manifolds M of dimension 4k ≤ 8 with the following properties: the second homotopy group π₂(M) is finite, M admits a smooth action by the circle S¹ and the Â-genus Â(M) is non-zero.

Université de Fribourg

Disentangling manner and path : Evidence from varieties of German and Romance

Berthele, Raphael

The standard theory of lexicalization patterns in the encoding of motion events (STLP in the remainder of this chapter; cf. Talmy 1985; Slobin 1996b; Talmy 2000, 2009) has been used in such a great number of research projects in the past two decades that its extensive introduction is superfluous. However, in this contribution I argue that that some of the claims of ‘mainstream’ STLP research...

Université de Fribourg

Demography vs. Legitimacy : Current issues in Swiss language policy

Berthele, Raphael

In: Cahiers de l'Institut de Linguistique et des Sciences Du Langage

This paper discusses current language policy debates on national and immigrated languages in Switzerland. Problems with the principle of territoriality, which represents a locally monolingual regime in an officially quadrilingual country, and other issues related to the legal status of languages are discussed. The proportional representation of the national minorities and the use of their...

Université de Fribourg

Googling Toubon : Testing the effects of institutional French language purism

Berthele, Raphael

In: Change of Paradigms – New Paradoxes. Recontextualizing Language and Linguistics

This study investigates the impact of French corpus planning efforts in two semantic domains, telecommunication and sport. Lists of Anglicisms and their French counterparts pertaining to these two domains are used in a corpus study using the Google Books corpus. A method to explore this corpus diachronically is proposed, and analyses assessing the odds of encountering the ‘official’ French...

Université de Fribourg

Smoking and adolescence : Exploring tobacco consumption and related attitudes in three different age groups in Switzerland

Bosson, M. ; Maggiori, C. ; Gygax, P.M. ; Gay, C.

The present study constitutes an investigation of tobacco consumption, related attitudes and individual differences in smoking or non-smoking behaviours in a sample of adolescents of different ages in the French-speaking part of Switzerland. We investigated three school-age groups (7th-grade, 9th-grade and the second-year of high school) for differences in attitude and social and cognitive...

Université de Fribourg

Dynamical instabilities in a simple minority game with discounting

Challet, Damien ; De Martino, Andrea ; Marsili, Matteo

In: Journal of Statistical Mecanics, Theory and Experiment (2008) L04004

We explore the effect of discounting and experimentation in a simple model of interacting adaptive agents. Agents belong to either of two types and each has to decide whether to participate a game or not, the game being profitable when there is an excess of players of the other type. We find the emergence of large fluctuations as a result of the onset of a dynamical instability which may arise...

Université de Fribourg

Fat tails, long memory, maturity and ageing in open-source software projects

Challet, Damien ; Valverde, Sergi

We report activity data analysis on several open source software projects, focusing on time between modifications and on the number of files modified at once. Both have fat-tailed distributions, long-term memory, and display systematic non-trivial cross-correlations, suggesting that quiet periods are followed by cascading modifications. In addition the maturity of a software project can be...