Jorge Louçã

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This paper examines the interplay of opinion exchange dynamics and communication network formation. An opinion formation procedure is introduced which is based on an abstract representation of opinions as k–dimensional bit–strings. Individuals interact if the difference in the opinion strings is below a defined similarity threshold dI. Depending on dI ,(More)
This paper presents a multi-agent model to support decision-making in organizations. The model is characterized by being interactive, distributed, and incremental and by the use of cognitive maps to represent the knowledge of decision-making actors. The main proposition is to consider the context of concepts belonging to cognitive maps in a way that it(More)
Individual cognitive map Individual cognitive map Individual cognitive map Socio-cognitive model Emergence of a socio-cognitive model Socio-cognitive model influencing individual beliefs La Thèorie de l'Impact Social (TIS) de Latané est utilisée pour identifier les facteurs qui l'impact des croyances individuelles dans le modèle socio-cognitif(More)
This paper proposes the use of cognitive schemata to model metacognitive social phenomena, characterizing the reciprocity between micro and macro dimensions in an organization. The main idea that rationalizes this research is that explicit modeling of social cognitive constructs might improve the understanding of organizational culture and learning(More)
We present a formal framework for the identification and interpretation of emergent properties in environments where agents participate in distinct kinds of relations or networks. We focus here on the interplay between social and geographic relations in the behavior of our agents. The method we present provides a way to detect emergent properties in the(More)
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