F. Pachet, Reprsentation de connaissances par objets et rgles : le systme NOpus. Thse, Universit de Paris 6, Septembre 1992. Home/Search Document Not in Database Summary Related Articles Check |
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Using Rules to Support Evolution - Fethi Bounaas Inria (Correct)
....There are defined in this way: when the event E is detected, and the condition C is satisfied then the action A is executed. The object activity behavior can be described more generally ( Condition component) by using ECA rules than with trigger [3] They are different from production rules [14] because of the Event component, that is the reason why we have chosen to design the active behavior by ECA rules (Event, Condition, Action) 4] 6] Our objective is not to implement an original active model, but to specify an ECA rule model to support schema and object evolution. Our active ....
....[4] 6] Our objective is not to implement an original active model, but to specify an ECA rule model to support schema and object evolution. Our active model includes some common features which are found in existing models as HIPAC [9] URDOS [16] and adds others as rules organization [14] and implicit inhibition link. The modelisation of the different ECA rule basic concepts is made easy by using the Shood Meta level. Thanks to the extensibility of the latter, the modelisation had allowed us introduction of rules into the system without any deterioration of the system code or ....
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F. Pachet, Reprsentation de connaissances par objets et rgles : le systme NOpus. Thse, Universit de Paris 6, Septembre 1992.
A Real-Time Agent Model in an Asynchronous-Object Environment - Guessoum, Dojat (1996) (Correct)
....of machines at the service of our MASs. Our actors are built with Actalk [Briot 1989, Briot 1995] a generic platform for implementing various actor models in Smalltalk80. Actalk may be seen as the foundation stone of our model. The rule bases and metabases of the reasoning modules use NOpus [Pachet 1992; Pachet 1995] a first order inference engine completely embedded in Smalltalk 80. We have added a few features to customize these components to meet the specific needs of our model. 2.1 Actalk Among other things, Actalk allows to transform ordinary Smalltalk objects into actors. Asynchronism, ....
....With each rule base there may be associated a metabase which controls the firing of its rules (see Fig. 1) A number of metabases have been designed by NOpus users to define standard types of control. In particular, specific metabases have been built to reason on critical situations [Dojat and Pachet 1992] We have adapted some of them to our needs by changing a few individual metarules. 3 Relations Between Agents We are interested in situations where an agent shares a collection of resources with other agents. Thus, agents must adapt themselves to take advantages of resources as needed, but ....
F. Pachet. Reprsentation de connaissances par objets et rgles : le systme NOpus. PhD thesis, LAFORIA, Paris 6, 1992.
NOpus User's Guide - Pachet Self-citation (Pachet) (Correct)
....core of a number of research projects in Knowledge Representation at LAFORIA (AI lab of Paris 6 University) and other research labs in France and in Canada. The system s implementation, as well as a discussion of the conceptual hypothesis and methodological issues may be found in my Ph.D. thesis [Pachet 1992a] in French) See the Documentation section for more details. Quick description of the system NOpus in general NOpus adds a facility for writing first order forward chaining rules to Smalltalk80. These rules may be seen as conditional actions and are expressed as if then statements. The ....
....system controls a ventilator in real time, to provide respiratory help for patients in intensive care units. The system is described in details in Michel Dojat thesis [Dojat 1994] More compact description emphasize technical problems of a real world application [Dojat and Pachet 1992b; Dojat and Pachet 1992a] Several papers emphasize the reusable aspects of the NoGanesh architecture [Dojat and Pachet 1995b; Dojat and Pachet 1995a; Dojat and Pachet 1995c] A typical use of rule base inheritance is described for representing temporal reasoning in [Dojat and Sayettat 1994] The Metagen architecture ....
Pachet F. Reprsentation de connaissances par objets et rgles : le systme NOpus. Universit Pierre et Marie Curie, Ph. D. thesis, 1992a.
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