Abstract: "This paper presents an object-oriented and constraint-based knowledge representation system FREEDOM for design object modeling. An object model represented as a set of objects in this system is not a mere data structure but an active entity which works to solve design problems. Knowl...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	Yokoyama, Takanori (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	Tokyo, Japan 1989
Schriftenreihe:	Shin-Sedai-Konpyūta-Gijutsu-Kaihatsu-Kikō <Tōkyō>: ICOT technical memorandum 809
Schlagworte:	Computer simulation Expert systems (Computer science)
Zusammenfassung:	Abstract: "This paper presents an object-oriented and constraint-based knowledge representation system FREEDOM for design object modeling. An object model represented as a set of objects in this system is not a mere data structure but an active entity which works to solve design problems. Knowledge representation provided in the system, based on the object-oriented paradigm, makes it possible to describe constraints in declarative form. A class hierarchy is represented with is-a links and includes links, and a class-instance relation can be changed dynamically. These features are useful for top-down refinement The problem solving mechanism of the system is based on constraint satisfaction techniques. Constraints are declared statically and can be added to objects dynamically. An object has a function to keep its state satisfying given constraints. By this function, we can find values of attributes and classes of objects that satisfy design requirements. The constraint satisfaction method is based on the technique of constraint logic programming and constraint propagation among objects. FREEDOM is implemented using ESP language on a PSI machine.
Beschreibung:	6 S.