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Some Considerations About Collaborative Systems Supporting Knowledge Management in Organizations

MUNTEAN, MIHAELA I.; TÂRNĂVEANU, DIANA - Volkswirtschaftliche Fakultät, … - 2009

In the present global economy, strongly influenced by IT (information technology) and information systems evolution, the modern organizations try to face the challenges by adjusting their strategies and restructuring their activities, for aligning them to the new economy requirements. It is...

Persistent link: https://www.econbiz.de/10011260334

Privacy metrics and boundaries

Pau, Louis-François - Volkswirtschaftliche Fakultät, … - 2007

This paper aims at defining a set of privacy metrics (quantitative and qualitative) in the case of the relation between … a privacy protector ,and an information gatherer .The aims with such metrics are : -to allow to assess and compare … case is given with the qualitative and quantitative privacy metrics determination and envelope, i.e. a Cisco Inc. privacy …

Persistent link: https://www.econbiz.de/10009022009

Digital divide – inequalities in level of implementation of new information and telecommunication technologies. Cross country study.

Ewa, Lechman - Volkswirtschaftliche Fakultät, … - 2010

In the paper presented, the author considers few aspects of the so-called “digital divide”. It is easily noticeable worldwide, that new information and communication technologies (ICTs) “possess” a great ability to spread, at high pace, among countries from all around the world. At the...

Persistent link: https://www.econbiz.de/10011258166

Repulsive Particle Swarm Method on Some Difficult Test Problems of Global Optimization

Mishra, SK - Volkswirtschaftliche Fakultät, … - 2006

In this paper we test a particular variant of the (Repulsive) Particle Swarm method on some rather difficult global optimization problems. A number of these problems are collected from the extant literature and a few of them are newly introduced. First, we introduce the Particle Swarm method of...

Persistent link: https://www.econbiz.de/10005836253

New perspectives on realism, tractability, and complexity in economics

Smith, Peter - Volkswirtschaftliche Fakultät, … - 2008

Fuzzy logic and genetic algorithms are used to rework more realistic (and more complex) models of competitive markets. The resulting equilibria are significantly different from the ones predicted from the usual static analysis; the methodology solves the Walrasian problem of how markets can...

Persistent link: https://www.econbiz.de/10005836597

Coevolutionary Genetic Algorithms for Establishing Nash Equilibrium in Symmetric Cournot Games

Protopapas, M.K.; Kosmatopoulos, E.B.; Battaglia, F. - Volkswirtschaftliche Fakultät, … - 2009

We use co-evolutionary genetic algorithms to model the players' learning process in several Cournot models, and evaluate them in terms of their convergence to the Nash Equilibrium. The ``social-learning'' versions of the two co-evolutionary algorithms we introduce, establish Nash Equilibrium in...

Persistent link: https://www.econbiz.de/10005042715

Minimization of Keane’s Bump Function by the Repulsive Particle Swarm and the Differential Evolution Methods

Mishra, SK - Volkswirtschaftliche Fakultät, … - 2007

Keane’s bump function is considered as a standard benchmark for nonlinear constrained optimization. It is highly multi-modal and its optimum is located at the non-linear constrained boundary. The true minimum of this function is, perhaps, unknown. We intend in this paper to optimize Keane’s...

Persistent link: https://www.econbiz.de/10005621797

Smoothing Transition Autoregressive (STAR) Models with Ordinary Least Squares and Genetic Algorithms Optimization

Giovanis, Eleftherios - Volkswirtschaftliche Fakultät, … - 2008

In this paper we present, propose and examine additional membership functions as also we propose least squares with genetic algorithms optimization in order to find the optimum fuzzy membership functions parameters. More specifically, we present the tangent hyperbolic, Gaussian and Generalized...

Persistent link: https://www.econbiz.de/10008614998

In Search of a Warning Strategy Against Exchange-rate Attacks: Forecasting Tactics Using Artificial Neural Networks

Andreou, Andreas S.; Zombanakis, George A.; … - Volkswirtschaftliche Fakultät, … - 2000

The contribution that this paper aspires to make is the prediction of an oncoming attack against the domestic currency, something that is expected to increase the possibilities of successful hedging by the authorities. The analysis has focused on the Greek Drachma,which has suffered a series of...

Persistent link: https://www.econbiz.de/10008578222

Crisis Management and Political Decision Making Using Genetically Evolved Fuzzy Cognitive Maps

Andreou, A. S.; Mateou, N. H.; Zombanakis, George A. - Volkswirtschaftliche Fakultät, … - 2003

This paper examines the use of Fuzzy Cognitive Maps (FCMs) as a technique for modeling political and crisis situations and supporting the decision-making process. FCMs use notions borrowed from artificial intelligence and neural networks to combine concepts and causal relationships, in the form...

Persistent link: https://www.econbiz.de/10011107777

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