Graçaliz Pereira Dimuro

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The main contribution of this paper is to introduce an autonomous definition of the connective “fuzzy exclusive or” (fuzzy Xor, for short), which is independent from others connectives. Also, two canonical definitions of the connective Xor are obtained from the composition of fuzzy connectives, and based on the commutative and associative properties related(More)
This paper presents a centralized mechanism for solving the coordination problem of personality-based multiagent systems from the point of view of social exchanges. The social exchanges are evaluated by the agents according to certain scales of exchange values. The agents may have different personality traits, which induce different attitudes towards both(More)
This work introduces the Geometric Machine (GM) – a computational model for the construction and representation of concurrent and non-deterministic processes, preformed in a synchronized way, with infinite memory whose positions are labelled by the points of a geometric space. The ordered structure of the GM model is based on Girard’s Coherence Spaces.(More)
This paper introduces a fuzzy rule-based method for the recognition of hand gestures acquired from a data glove, with an application to the recognition of some sample hand gestures of LIBRAS, the Brazilian Sign Language. The method uses the set of angles of finger joints for the classification of hand configurations, and classifications of segments of hand(More)
This paper introduces systems of exchange values as tools for the organization of multi-agent systems. Systems of exchange values are defined on the basis of the theory of social exchanges, developed by Piaget and Homans. A model of social organization is proposed, where social relations are construed as social exchanges and exchange values are put into use(More)
The SignWriting system (developed at the Center for Sutton Movement Writing, Ca., USA), is a writing system for deaf sign languages. In SignWriting, signs are represented as figures made up of graphic symbols, each symbol schematically representing an important aspect of the sign gestures: hand configurations, hand and finger movements, contacts, facial(More)
This work introduces a tessellation-based model for the declivity analysis of geographic regions. The analysis of the relief declivity, which is embedded in the rules of the model, categorizes each tessellation cell, with respect to the whole considered region, according to the (positive, negative, null) sign of the declivity of the cell. Such information(More)
This paper introduces semantical concepts to support a formal structural dynamics of situated multiagent systems. Multiagent systems are seen from the perspective of the Population-Organization model, a minimal semantical model where the performance of organizational roles by agents, and the realization of organizational links by social exchanges between(More)