Fielded Object Network as a Framework for Computer Intelligence State University of Campinas UNICAMP - Brazil Rodrigo Gonçalves Ricardo Gudwin Fernando Gomide

What is Fielded Object Network (FON)? zObject Network extension aiming at a multiresolutional and massively parallel representation and implementation tool y[4] Gudwin, R. R., Gomide, F., An Approach to Computational Semiotics. Proceedings of the ISAS'97 - Intelligent Systems and Semiotics: A Learning Perspective - Gaithersburg, MD, USA September, 1997 zObject definition: object is an individual and atomic entity zDefinition: FON is an object system where the objects are composed by five elements: yattributes (attributes  parts) yfunctions (  method) yfield yconnections ylife cycle.

FON object: Field zField yplace where the object places the objects that it contains yPhysical parameters xspatial structure and dimension. yPhysical laws xrules that affect a subset of attributes of the contained objects yEmbedded nature yUniverse object yAtomic object Attributes Functions Field OBJECT

FON object: Life cycle zAn independent and parallel dynamic system that is ruled by some kind of algorithm while the object exists zA processing stream related to an object zLife Cycle x Embedded Nature zPassive x Active Attributes Functions Field OBJECT Life Cycle

zField concept  data visibility restrictions  visibility scope zNormal visibility scope (direct access) zConnection: communication line between two or more objects zTwo kinds of communication (interaction): physical & logical FON object: Connections Attributes Functions Field OBJECT Life Cycle X X

zPhysical communication yembedded nature + hit function zLogical communication yconnection + assimilation function yan object must explicitly allow its assimilation before being assimilated FON objects: connections and assimilation hit func embedded nature assimilate

FON objects: assimilation types zThree different assimilation types: yDestructive assimilation yNon-destructive assimilation assimilate

FON objects: assimilation types yMessage passing assimilate

Why and when FON? zDistributed Artificial Intelligence (DAI) yDistributed Problem Solving (DPS) yMulti-agent Systems (MAS) zFON = Framework for DAI zHighlights: yUsing CORBA or PVM: FON can be distributed in a network yFON objects  mobile objects

Example: A FON approach to GSM zGSM  FON

Application example: AGV Car Walls Objective

What is the relationship between FON and semiotics? zSemiotic Oriented Autonomous Intelligent Systems Engineering yAnalysis xSemiotic analysis + UML extension yProject xFON modeling + UML extension yDesign xFON framework

Conclusions zFielded Object Network (FON) is an extension of Object Network (ON) yObject yLife Cycle yField, embedded nature yCommunication: xphysical hit xlogical Destructive assimilation Non destructive assimilation Message passing assimilation zFON is a framework for DAI zExample: GSM implementation using FON zApplication example: AGV zFON can be used in a “Semiotic Oriented Autonomous Intelligent Systems Engineering” as modeling and implementation tool