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Consortium of Swiss Academic Libraries

Structure-preserving desynchronization of minority games

Mosetti, G. ; Challet, D. ; Solomon, S.

In: The European Physical Journal B, 2009, vol. 71, no. 4, p. 573-577

Consortium of Swiss Academic Libraries

Shedding light on microcirculation?

Takala, Jukka ; Jakob, Stephan

In: Intensive Care Medicine, 2009, vol. 35, no. 3, p. 394-396

Consortium of Swiss Academic Libraries

The photometric structure of the inner Galaxy

Binney, James ; Gerhard, Ortwin ; Spergel, David

In: Monthly Notices of the Royal Astronomical Society, 1997, vol. 288, no. 2, p. 365-374

Université de Fribourg

Statistical mechanics of competitive resource allocation using agent-based models

Chakraborti, Anirban ; Challet, Damien ; Chatterjee, Arnab ; Marsili, Matteo ; Zhang, Yi-Cheng ; Chakrabarti, Bikas K.

In: Physics Reports, 2015, vol. 552, p. 1–25

Demand outstrips available resources in most situations, which gives rise to competition, interaction and learning. In this article, we review a broad spectrum of multi-agent models of competition (El Farol Bar problem, Minority Game, Kolkata Paise Restaurant problem, Stable marriage problem, Parking space problem and others) and the methods used to understand them analytically. We emphasize the...

Université de Fribourg

Receptive Multilingualism in the Swiss Army

Berthele, Raphael ; Wittlin, Gabriele

In: International Journal of Multilingualism, 2013, vol. 10, no. 2, p. 181-195

In this paper a particular context where receptive multilingualism at work can be observed is discussed. The Swiss armed forces underwent a series of quite dramatic downsizing measures, which lead to a situation with increased amount of mixed groups and linguistically mixed situations regarding the first/native language of officers and the first/native languages of the recruits. Although...

Université de Fribourg

Emergence of heterogeneity in a noncompetitive resource allocation problem

Matzke, Christina ; Challet, Damien

In: Physical Review E statistical, nonlinear, and soft matter physics, 2011, vol. 84, no. 1, p. 016107

Tuning one’s shower in some hotels may turn into a challenging coordination game with imperfect information. The temperature sensitivity increases with the number of agents, making the problem possibly unlearnable. Because there is in practice a finite number of possible tap positions, identical agents are unlikely to reach even approximately their favorite water temperature. We show that a...

Université de Fribourg

Turnover, account value and diversification of real traders: evidence of collective portfolio optimizing behavior

Lachapelle, David Morton de ; Challet, Damien

In: New Journal of Physics, 2010, vol. 12, no. 7, p. 075039

Despite the availability of very detailed data on financial markets, agent-based modeling is hindered by the lack of information about real trader behavior. This makes it impossible to validate agent-based models, which are thus reverse-engineering attempts. This work is a contribution towards building a set of stylized facts about the traders themselves. Using the client database of Swissquote...