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See detailConvex Risk Measures: Basic Facts, Law-invariance and beyond, Asymptotics for Large Portfolios
Föllmer, Hans UL; Knispel, Thomas

in MacLean, Leonard C.; Ziemba, William T. (Eds.) Handbook of the Fundamentals of Financial Decision Making (2013)

Detailed reference viewed: 156 (4 UL)
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See detailConvexity of probit weights
Schumann, Martin; Tripathi, Gautam UL

in Statistics and Probability Letters (2018), 143

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See detailConvivial ambient technologies: Requirements, ontology, and design
Caire, Patrice UL; van der Torre, Leon UL

in The Computer Journal (2010), 53(8), 12291256

In this paper we discuss the use of the social concept ‘conviviality’ for computer science in general, and for the development of ambient technologies in particular. First, we give a survey of the use of ... [more ▼]

In this paper we discuss the use of the social concept ‘conviviality’ for computer science in general, and for the development of ambient technologies in particular. First, we give a survey of the use of the concept ‘conviviality’ in the social sciences. Conviviality is usually considered a positive concept related to sociability. However, further analysis reveals a negative side related to lack of diversity, privacy and ethical issues. Second, we argue that conviviality requirements for ambient intelligence are challenging, because ambient technologies give rise to a new virtual and social reality, and conviviality issues play a central role in applications that are concerned with the interaction of material, virtual and social realities. Conviviality highlights an important challenge that we illustrate with examples that emphasize ethical issues, such as privacy threats, surveillance of users and identity theft. Intelligent interfaces, for example, allow instant interactions and thereby create strong needs for coordination and regulation mechanisms that have to be addressed to ensure the safeguard of individuals against abuses, such as privacy intrusions and identity manipulations. Third, we propose a conviviality ontology by operationalizing the fuzzy concept of ‘conviviality,’ such that it can be used in computer science in the same way as other social concepts such as ‘service,’ ‘contract’ or ‘trust’ are used in this area. Conviviality is defined using dependence networks, and tools for conviviality are based on, what we call, conviviality masks. Fourth, we illustrate how convivial ambient intelligence applications can be designed using our operationalized concept of conviviality. We illustrate our arguments and contributions with a running example on the use of ambient technologies in digital cities, as a prototypical example where material reality such as ambient technologies interacts with virtual and social realities. [less ▲]

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See detailConviviality by Design
Caire, Patrice UL; Bikakis, Antonis; Efthymiou, Vasileios UL

in Social computing, Social cognition, social networks Acquisition, representation and reasoning with contextualized knowledge (ARCOE 2012) (2012)

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See detailConviviality masks in multiagent systems
Caire, Patrice UL; Villata, Serena; Boella, Guido et al

in Conviviality Masks in Multiagent Systems (2008)

In this paper we study tools for conviviality to develop user-friendly multiagent systems. First, we show how to use the social-cognitive concept of conviviality in multiagent system technology by ... [more ▼]

In this paper we study tools for conviviality to develop user-friendly multiagent systems. First, we show how to use the social-cognitive concept of conviviality in multiagent system technology by relating it to agent power and social dependence networks. Second, we de- fine conviviality masks as transformations of social dependencies by hiding power relations and social structures to facilitate social interactions. Third, we introduce dynamic dependence networks to model the creation of conviviality using conviviality masks. We illustrate the use of conviviality masks with a multiagent telecon- ferencing application for virtual worlds. [less ▲]

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See detailA Conviviality Measure for Early Requirement Phase of Multiagent System Design
Caire, Patrice UL; van der Torre, Leon UL

in Normative Multiagent Systems (2009)

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See detailConviviality Measures
Caire, Patrice UL; Alcalde, Baptiste UL; van der Torre, Leon UL et al

in Proc. of 10th Int. Conf. on Autonomous Agents and Multiagent Systems (AAMAS 2011) (2011)

Conviviality has been introduced as a social science concept for multiagent systems to highlight soft qualitative requirements like user friendliness of systems. In this paper we introduce formal ... [more ▼]

Conviviality has been introduced as a social science concept for multiagent systems to highlight soft qualitative requirements like user friendliness of systems. In this paper we introduce formal conviviality measures for dependence networks using a coalitional game theoretic framework, which we contrast with more traditional efficiency and stability measures. Roughly, more opportunities to work with other people increases the conviviality, whereas larger coalitions may decrease the efficiency or stability of these involved coalitions. We first introduce assumptions and requirements, then we introduce a classification, and finally we introduce the conviviality measures. We use a running example from robotics to illustrate the measures. [less ▲]

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See detailConviviality-Driven Access Control Policy
El Kateb, Donia UL; Zannone, Nicola; Moawad, Assaad UL et al

in Requirements Engineering (2014)

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See detailConviviality-driven access control policy
El Kateb, Donia UL; Zannone, N.; Moawad, Assaad UL et al

in Requirements Engineering (2015), 20(4), 363-382

Nowadays many organizations experience security incidents due to unauthorized access to information. To reduce the risk of such incidents, security policies are often employed to regulate access to ... [more ▼]

Nowadays many organizations experience security incidents due to unauthorized access to information. To reduce the risk of such incidents, security policies are often employed to regulate access to information. Such policies, however, are often too restrictive, and users do not have the rights necessary to perform assigned duties. As a consequence, access control mechanisms are perceived by users as a barrier and thus bypassed, making the system insecure. In this paper, we draw a bridge between the social concept of conviviality and access control. Conviviality has been introduced as a social science concept for ambient intelligence and multi-agent systems to highlight soft qualitative requirements like user-friendliness of systems. To bridge the gap between conviviality and security, we propose a methodological framework for updating and adapting access control policies based on conviviality recommendations. Our methodology integrates and extends existing techniques to assist system designers in the derivation of access control policies from socio-technical requirements of the system, while taking into account the conviviality of the system. We illustrate our framework using the Ambient Assisted Living use case from the HotCity of Luxembourg. © 2014, Springer-Verlag London. [less ▲]

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See detailLe coopérateur ouvrier ou la signification du principe de double qualité dans les SCOP
Hiez, David UL

in Revue Internationale de l'Economie Sociale : Recma, Revue des Etudes Coopératives, Mutualistes et Associatives (2006), (299),

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See detailLe coopérateur ouvrier ou le principe de double qualité dans les SCOP
Hiez, David UL

in Revue des Etudes Coopératives Mutualistes et Associatives (2006), (299), 34-56

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See detailCooperation and exchange for sustainable urban development
Becker, Tom UL

Scientific Conference (2013, October)

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See detailLa coopération comme « formation transfrontalière de pratiques ». Une perspective d’analyse praxéologique
Wille, Christian UL; Connor, Ulla

Presentation (2018)

Les développements sociétaux récents ont remis la question de la frontière sur l'agenda scientifique. Dans un contexte de montée du populisme, de BREXIT ou de mouvements migratoires, différentes ... [more ▼]

Les développements sociétaux récents ont remis la question de la frontière sur l'agenda scientifique. Dans un contexte de montée du populisme, de BREXIT ou de mouvements migratoires, différentes disciplines activent des concepts nouveaux ou déjà éprouvés pour saisir les réalités contemporaines et pour repenser le projet européen, respectivement les frontières nationales. A cet effet, de plus en plus d’approches constructivistes prévalent, décentralisant le regard analytique de la frontière nationale en tant qu'objet ontologique aux processus de démarcation et de différenciation. Le décentrement méthodologique de la frontière en faveur des réalités sociétales de frontiérisation (bordering) a été reçu de manière productive au sein des border studies et s’est établi comme tournant praxéologique (practice turn). Ce développement n’a pas encore trouvé d’écho significatif au sein de la recherche sur la coopération transfrontalière. C’est pourquoi la présente communication propose d’analyser la coopération transfrontalière dans une perspective praxéologique. Celle-ci ne se limite pas à des systèmes ou structures, des frontières territoriales ou des normativités d’action en tant que facteurs explicatifs des dynamiques de la coopération transfrontalière ; au contraire, elle est centrée sur les réalités immédiates et contingentes de la coopération. La coopération sera donc conçue comme une « formation transfrontalière de pratiques », c.-à-d. comme un ensemble complexe de pratiques politiques et administratives interdépendantes dépassant une frontière nationale. De telles formations ne représentent pas des entités uniquement formées ; elles sont plutôt dynamiques et à caractère relationnel puisqu’elles sont constamment actualisées et en conséquence re/produites. Ces processus sociaux de mise à jour constituent les réalités de la coopération sur lesquelles porte l'intérêt d’une analyse praxéologique. Cette dernière ne construit donc pas la coopération transfrontalière comme un « objet entre-deux » situé entre différents systèmes politiques et administratifs. Il s’agit plutôt de développer une approche centrée sur les pratiques qui attribue à la coopération une identité propre. Pour ce faire, la présente communication, axée sur des questions théoriques, (1) donne un aperçu des hypothèses praxéologiques ; (2) présente ensuite la notion de « formation transfrontalière de pratiques » et (3) développe sur base de l'exemple des défis de coopération une perspective praxéologique sur la coopération transfrontalière. Enfin, (4) cette communication présentera quelques-unes des particularités méthodologiques liées à la perspective d’analyse proposée. La présente communication propose de sensibiliser à de nouvelles modalités d’analyse et de questionner les prémisses implicites de la recherche traditionnelle sur la coopération. En outre, la présente communication veut soumettre au débat une approche de connexions multidisciplinaires qui s’inscrit dans les développements récents au sein des border studies. [less ▲]

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See detailCoopération franco-américaine dans le cadre du Forum non conveniens : Note sous Paris, 6 mars 2008
Cuniberti, Gilles UL

in Journal du Droit International (2009)

Forum non conveniens et action en incompétence par voie d’action.

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See detailLa coopération transfrontalière comme formation de pratiques. Perspectives pour une approche de recherche alternative
Wille, Christian UL; Connor, Ulla UL

in Dziub (Ed.) Le Transfrontalier, pratiques et représentations (in press)

In order to achieve our objective, we will first provide an overview of the development of cooperation research, its characterizing orientations and establish a link to the topic of this contribution ... [more ▼]

In order to achieve our objective, we will first provide an overview of the development of cooperation research, its characterizing orientations and establish a link to the topic of this contribution (chapter 2). The following presentation of practice theories introduces praxeo-logical thinking and provides a condensed outline of the state of the art of this cultural soci-ological theory (chapter 3). Building on this, we will develop our idea of a cross-border practice formation that breaks with the premises of traditional cooperation research, and we provide an alternative perspectivation by outlining four challenges of CBC (chapter 4). In consideration of some research-practical particularities which are linked to the suggested analytical perspective, we eventually offer (chapter 5) an outlook on the development of an alternative research approach which is compatible within a multidisciplinary context. [less ▲]

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See detailCoopération transfrontalière des universités dans l’espace SaarLorLux
Lehners, Jean-Paul UL

in Schmeling, Manfred; Veith, Michael (Eds.) Universitäten in europäischen Grenzräumen / Universités et Frontières en Europe. Frankreich-Forum. Jahrbuch des Frankreichzentrums der Universität des Saarlandes (2005)

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See detailLa coopération transfrontalière, un levier potentiel des réconciliations interethniques en ex-Yougoslavie ? Une approche critique
Blondel, Cyril UL

in Cybergeo : Revue Européenne de Géographie = Cybergeo - European Journal of Geography (2013)

Detailed reference viewed: 75 (2 UL)