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B. Feijó*, P.C.R. Gomes*, S. Scheer+ and J. Bento$

*Department of Computing, PUC-Rio, Rio de Janeiro, Brazil
+CESEC, UFPRM, Parana, Brazil
$DECivil, IST, Lisbon, Portugal

doi:10.4203/ccp.61.2.2

, "Online Algorithms Supporting Emergence in Distributed CAD Systems", in B. Kumar, B.H.V. Topping, (Editors), "Novel Design and Information Technology Applications for Civil and Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 25-31, 1999. doi:10.4203/ccp.61.2.2

Abstract

The rule-based approach from traditional AI and the conventional constraint satisfaction algorithms are not adequate to cope with the unpredictable events and interactive computations in distributed CAD environments. This paper claims that the problems faced by distributed CAD systems require solutions based on the concepts of emergence, reactivity, and online algorithms. The present paper presents Extended Constraints Graphs (ECGs) as online algorithms supporting emergence in a network of reactive agents. ECGs represent an effective solution for the nonlinear constraint problem in cyclic graphs, which are distributed over a heterogeneous computer network. The relationships between agents in an ECG are generic, distributed, recursive and nonlinear - a problem not solved in the literature. Also this paper presents a CORBA model integrated with a Geometry Bus to support distributed virtual prototype whose variables can be defined in terms of ECGs.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 61 NOVEL DESIGN AND INFORMATION TECHNOLOGY APPLICATIONS FOR CIVIL AND STRUCTURAL ENGINEERING Edited by: B. Kumar and B.H.V. Topping Paper II.2 Online Algorithms Supporting Emergence in Distributed CAD Systems B. Feijó, P.C.R. Gomes, S. Scheer+ and J. Bento$ *Department of Computing, PUC-Rio, Rio de Janeiro, Brazil +CESEC, UFPRM, Parana, Brazil $DECivil, IST, Lisbon, Portugal doi:10.4203/ccp.61.2.2 purchase the full-text of this paper Full Bibliographic Reference for this paper , "Online Algorithms Supporting Emergence in Distributed CAD Systems", in B. Kumar, B.H.V. Topping, (Editors), "Novel Design and Information Technology Applications for Civil and Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 25-31, 1999. doi:10.4203/ccp.61.2.2 Abstract The rule-based approach from traditional AI and the conventional constraint satisfaction algorithms are not adequate to cope with the unpredictable events and interactive computations in distributed CAD environments. This paper claims that the problems faced by distributed CAD systems require solutions based on the concepts of emergence, reactivity, and online algorithms. The present paper presents Extended Constraints Graphs (ECGs) as online algorithms supporting emergence in a network of reactive agents. ECGs represent an effective solution for the nonlinear constraint problem in cyclic graphs, which are distributed over a heterogeneous computer network. The relationships between agents in an ECG are generic, distributed, recursive and nonlinear - a problem not solved in the literature. Also this paper presents a CORBA model integrated with a Geometry Bus to support distributed virtual prototype whose variables can be defined in terms of ECGs. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £66 +P&P)
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