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See detailNorges Bank Investment Management
Mehra, Rajnish UL

Scientific Conference (2011)

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See detailNorm Creation in Proposition Control Games
Sun, Xin UL; Robaldo, Livio UL

in Proceedings of the 1st Chinese Conference on Logic and Argumentation (CLAR 2016), Hangzhou, China, April 2-3, 2016. (2016)

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See detailNorm negotiation in multiagent systems
Boella, Guido UL; van der Torre, Leon UL

in International Journal of Cooperative Information Systems (2007), 16(2),

Normative multiagent systems provide agents with abilities to autonomously devise societies and organizations coordinating their behavior via social norms and laws. In this paper we study how agents ... [more ▼]

Normative multiagent systems provide agents with abilities to autonomously devise societies and organizations coordinating their behavior via social norms and laws. In this paper we study how agents negotiate new social norms and when they accept them. We introduce a negotiation model based on what we call the social delegation cycle, which explains the negotiation of new social norms from agent desires in three steps. First individual agents or their representatives negotiate social goals, then a social goal is negotiated in a social norm, and finally the social norm is accepted by the agents when it leads to fulfilment of the desires the cycle started with. We characterize the allowed proposals during social goal negotiation as mergers of the individual agent desires, and we characterize the allowed proposals during norm negotiation as both joint plans to achieve the social goal (obligations associated with the norm) and the associated sanctions or rewards (a control system associated with the norm). The norm is accepted when the norm is stable in the sense that agents will act according to the norm, and effective in the sense that fulfilment of the norm leads to achievement of the agents’ desires. We also compare norm negotiation with contract negotiation and negotiation of the distribution of obligations [less ▲]

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See detailNorm Negotiation in Online Multi-Player Games
Boella, Guido UL; Caire, Patrice UL; van der Torre, Leon UL

in Knowledge & Information Systems (2009), 18(2), 137156

In this paper, we introduce an agent communication protocol and speech acts for norm negotiation. The protocol creates individual or contractual obligations to fulfill goals of the agents based on the so ... [more ▼]

In this paper, we introduce an agent communication protocol and speech acts for norm negotiation. The protocol creates individual or contractual obligations to fulfill goals of the agents based on the so-called social delegation cycle. First, agents communicate their individual goals and powers. Second, they propose social goals which can be accepted or rejected by other agents. Third, they propose obligations and sanctions to achieve the social goal, which can again be accepted or rejected. Finally, the agents accept the new norm by indicating which of their communicated individual goals the norm achieves. The semantics of the speech acts is based on a commitment to public mental attitudes. The norm negotiation model is illustrated by an example of norm negotiation in multi-player online gaming. [less ▲]

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See detailNorm-based deontic logic for access control, some computational results
Sun, Xin; Robaldo, Livio UL

in Future Generation Computer Systems (2017)

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See detailNormal approximation and almost sure central limit theorem for non-symmetric Rademacher functionals
Zheng, Guangqu UL

in Stochastic Processes & Their Applications (2017), 127(5), 1622-1636

In this work, we study the normal approximation and almost sure central limit theorems for some functionals of an independent sequence of Rademacher random variables. In particular, we provide a new chain ... [more ▼]

In this work, we study the normal approximation and almost sure central limit theorems for some functionals of an independent sequence of Rademacher random variables. In particular, we provide a new chain rule that improves the one derived by Nourdin et al. (2010) and then we deduce the bound on Wasserstein distance for normal approximation using the (discrete) Malliavin–Stein approach. Besides, we are able to give the almost sure central limit theorem for a sequence of random variables inside a fixed Rademacher chaos using the Ibragimov–Lifshits criterion [less ▲]

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See detailNormal approximation for functions of hidden Markov models
Kerchev, George UL

E-print/Working paper (2020)

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See detailNormal approximation on Poisson spaces: Mehler's formula, second order Poincaré inequalities and stabilization
Last, Guenter; Peccati, Giovanni UL; Schulte, Matthias

in Probability Theory & Related Fields (2016), 165(3), 667-723

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See detailNormal approximations for wavelet coefficients on spherical Poisson fields
Durastanti, Claudio; Marinucci, Domenico; Peccati, Giovanni UL

in Journal of Mathematical Analysis & Applications (2014), 409(1), 212--227

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See detailNormal approximations with Malliavin calculus
Nourdin, Ivan UL; Peccati, Giovanni UL

Book published by Cambridge University Press (2012)

Detailed reference viewed: 167 (13 UL)
See detailNormal ordering: cohomological applications and refinements
Poncin, Norbert UL

Presentation (2002)

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See detailThe normalized CES production function: theory and empirics
Klump, Rainer UL; McAdam, Peter; Willman, Alpo

in JOURNAL OF ECONOMIC SURVEYS (2012), 26(5), 769-799

The elasticity of substitution between capital and labor and, in turn, the direction of technical change are critical parameters in many fields of economics. Until recently, though, the application of ... [more ▼]

The elasticity of substitution between capital and labor and, in turn, the direction of technical change are critical parameters in many fields of economics. Until recently, though, the application of production functions with specifically non-unitary substitution elasticities (i.e., non-CobbDouglas) was hampered by empirical and theoretical uncertainties. As recently revealed, normalization of production-technology systems holds out the promise of resolving many of those uncertainties. We survey and assess the intrinsic links between production (as conceptualized in a production function), factor substitution (as made most explicit in Constant Elasticity of Substitution functions) and normalization (defined by the fixing of baseline values for relevant variables). First, we recall how the normalized Constant Elasticity of Substitution function came into existence and what normalization implies for its formal properties. Then we deal with the key role of normalization in recent advances in the theory of business cycles and of economic growth. Next, we discuss the benefits normalization brings for empirical estimation and empirical growth research. Finally, we identify promising areas of future research. [less ▲]

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See detailNormalized LMS Algorithm and Data-selective Strategies for Adaptive Graph Signal Estimation
Jorge Mendes Spelta, Marcelo; Alves Martins, Wallace UL

in Signal Processing (2019)

This work proposes a normalized least-mean-squares (NLMS) algorithm for online estimation of bandlimited graph signals (GS) using a reduced number of noisy measurements. As in the classical adaptive ... [more ▼]

This work proposes a normalized least-mean-squares (NLMS) algorithm for online estimation of bandlimited graph signals (GS) using a reduced number of noisy measurements. As in the classical adaptive filtering framework, the resulting GS estimation technique converges faster than the least-mean-squares (LMS) algorithm while being less complex than the recursive least-squares (RLS) algorithm, both recently recast as adaptive estimation strategies for the GS framework. Detailed steady-state mean-squared error and deviation analyses are provided for the proposed NLMS algorithm, and are also employed to complement previous analyses on the LMS and RLS algorithms. Additionally, two different time-domain data-selective (DS) strategies are proposed to reduce the overall computational complexity by only performing updates when the input signal brings enough innovation. The parameter setting of the algorithms is performed based on the analysis of these DS strategies, and closed formulas are derived for an accurate evaluation of the update probability when using different adaptive algorithms. The theoretical results predicted in this work are corroborated with high accuracy by numerical simulations. [less ▲]

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See detailNormalizing Unemployment: A New Way to Cope with Unemployment
Pignault, Anne; Houssemand, Claude UL

in Basic and Applied Social Psychology (2017)

Although the literature suggests that the massive unemployment statistics of the last decade have resulted in changes in the way people view unemployment, no study to date has precisely identified this ... [more ▼]

Although the literature suggests that the massive unemployment statistics of the last decade have resulted in changes in the way people view unemployment, no study to date has precisely identified this phenomenon and its effects on individuals. This study brings to light the connection between these new perceptions of and experiences with unemployment and health. Using both qualitative and quantitative methods, we developed and validated the Unemployment Normalization Questionnaire and correlated it with health. Thus, 938 unemployed people from two economic contexts (France and Luxembourg) completed both the Unemployment Normalization Questionnaire and the General Health Questionnaire. This study confirmed the existence of the psychological concept of unemployment normalization among actual job seekers and its relation to perceived well-being. [less ▲]

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See detailNormative framework for normative system change
Boella, Guido UL; Pigozzi, Gabriella UL; van der Torre, Leon UL

in Normative framework for normative system change (2009)

Normative systems in a multiagent system must be able to evolve over time, for example due to actions creating or removing norms in the system. The only formal framework to evaluate and classify normative ... [more ▼]

Normative systems in a multiagent system must be able to evolve over time, for example due to actions creating or removing norms in the system. The only formal framework to evaluate and classify normative system change methods is the so-called AGM framework of theory change, which has originally been developed as a framework to describe and classify both belief and normative system change. However, it has been used for belief change only, since the beliefs or norms are represented as propositional formulas. We therefore propose, as a normative framework for normative system change, to replace propositional formulas in the AGM framework of theory change by pairs of propositional formulas, representing the rule based character of norms, and to add several principles from the input/output logic framework. In this new framework, we show that some of the AGM properties cannot be expressed, and other properties are consistent only for some logics, but not for others. [less ▲]

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See detailNormative Multi-Agent Systems
Andrighetto, Giulia; Governatori, Guido; Noriega, Pablo et al

in Dagstuhl Reports (2012), 2(3), 23-49

Normative systems are systems in the behavior of which norms play a role and which need normative concepts in order to be described or specified. A normative multi-agent system combines models for ... [more ▼]

Normative systems are systems in the behavior of which norms play a role and which need normative concepts in order to be described or specified. A normative multi-agent system combines models for normative systems (dealing for example with obligations, permissions and prohibitions) with models for multi-agent systems. Norms have been proposed in multi-agent systems and computer science to deal with issues of coordination, security, electronic commerce and institutions, agent organization. However, due to the lack of a unified theory, many multi-agent system researchers are presently developing their own ad hoc concepts and applications. The aim of this Dagstuhl Seminar was to formulate a collective appraisal of the current perspectives in the field and the most promising venues for future activity. In particular, the seminar has been conceived for the writing of a volume titled "A Prospective view of Normative Multi Agent Systems" aimed to become a standard reference in the field and to provide guidelines for future research in normative multi-agent systems. [less ▲]

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See detailA Normative Multi-Agent Systems Approach to the Use of Conviviality for Digital Cities
Caire, Patrice UL

in Coordination, Organizations, Institutions, and Norms in Agent Systems III (2007)

Detailed reference viewed: 63 (2 UL)