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A parallel implementation of the EQUIP expert system

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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 503))

Abstract

We describe a parallel implementation of a subset of the EQUIP expert system. In EQUIP, diagnostic reasoning is applied to the domain of silicon chip production control. In order to diagnose all probable process faults that occurred in the manufacturing of IC's, the necessary computations in the inference part of the program become very time-consuming. To reduce this computation time, a parallel inference algorithm has been developed. We describe this inference algorithm and its parallel implementation in POOL-X. In the end some results will be shown using a multi-node computer.

The work described in this document was conducted at the Centre for Mathematics and Computer Science (CWI) in Amsterdam as part of the PRISMA project, a joint effort with Philips Research Eindhoven, partially supported by the Dutch “Stimulerings-projectteam Informatica-onderzoek” (SPIN).

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References

  1. H.J. Ter Horst (1990). Paper on EQUIP, Philips Research Laboratories Eindhoven, The Netherlands, to appear.

    Google Scholar 

  2. J.W. Spee (1990). Finding All Minimal Covers of a Set Using Implicit Enumeration, technical report of the Centre for Mathematics and Computer Science CS-R9007, Department of Software Technology, The Netherlands.

    Google Scholar 

  3. J.W. Spee (1989). A Parallel Implementation of a Part of EQUIP in POOL2, PRISMA doc. nr. P0459, Philips Research Laboratories Eindhoven, The Netherlands.

    Google Scholar 

  4. J.W. Spee (1989). A Dynamic Load Balancing Strategy for POOL Programs, PRISMA doc. no. P0464, Philips Research Laboratories Eindhoven, The Netherlands.

    Google Scholar 

  5. P. America (1989). Language Definition of POOL-X, PRISMA doc. nr. P0350, Philips Research Laboratories Eindhoven, The Netherlands.

    Google Scholar 

  6. P. America, L. Augusteijn, B, Hulshof, (1990), Annotations for Data Object Support in POOL-X, POOMA doc. nr. 0019, Philips Research Laboratories Eindhoven, The Netherlands.

    Google Scholar 

  7. P. America (1988). Definition of POOL2, a parallel object-oriented language, Esprit 415A, doc. nr. 364.

    Google Scholar 

  8. M. Beemster (1990), POOL±X, PRISMA doc. nr. P0522, Philips Research Laboratories Eindhoven, The Netherlands.

    Google Scholar 

  9. Y. Peng (1986). A Formalization of Parsimonious Covering and Probabilistic Reasoning in Abductive Diagnostic Inference, Ph.-D. Thesis, Department of Computer Science, TR-1615, University of Maryland.

    Google Scholar 

  10. J.A. Reggia, D.S. Nau, P.Y. Wang (1985). A Formal Model of Diagnostic Inference I. Information Sciences, vol. 37, pp. 227–256.

    Google Scholar 

  11. J.A. Reggia, D.S. Nau, P.Y. Wang (1985). A Formal Model of Diagnostic Inference II. Information Sciences, vol. 37, pp. 257–285.

    Google Scholar 

  12. A.M. Geoffrion (1967). Integer Programming by Implicit Enumeration and Balas' Method, SIAM Review, Vol. 9, No. 2, pp. 178–190.

    Google Scholar 

  13. N. Christofides (1975). Graph Theory, An Algorithmic Approach, Academic Press, New York, pp. 30–57.

    Google Scholar 

  14. C.E. Lemke, H.M. Salkin, K. Spielberg (1971). Set Covering by Single Branch Enumeration with Linear-Programming Subproblems, Operations Research, vol. 19, pp. 998–1022.

    Google Scholar 

  15. R. Garfinkel, G.L. Nemhauser (1972). Integer Programming, John Wiley & Sons, New York. Class of Set-Covering Algorithms, SIAM Journal of Computing, Vol. 12, No. 2, pp. 329–346.

    Google Scholar 

  16. V. Lifschitz, B. Pittel (1983). The Worst and the Most-Probable Performance of a Class of Set-Covering Algorithms, SIAM Journal of Computing, Vol. 12, No. 2, pp. 329–346.

    Google Scholar 

  17. M.H. Young, S. Muroga (1985). Minimal Covering Problem and PLA Minimization, International Journal of Computer and Information Sciences, Vol. 14, No. 6, pp. 337–364.

    Google Scholar 

  18. F. Sijstermans & J.M. Jansen (1988). Parallel branch-and bound algorithms, Esprit 415A doc. nr. 413.

    Google Scholar 

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Pierre America

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© 1991 Springer-Verlag Berlin Heidelberg

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Spee, J.W. (1991). A parallel implementation of the EQUIP expert system. In: America, P. (eds) Parallel Database Systems. PDS 1990. Lecture Notes in Computer Science, vol 503. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-54132-2_63

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  • DOI: https://doi.org/10.1007/3-540-54132-2_63

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-54132-5

  • Online ISBN: 978-3-540-47432-6

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