Integration of semiqualitative and qualitative safety models

Mirko Dohnal, Raija Koivisto, J. Vystrcil

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Integration of a qualitative submodel, qualitative query, semiqualitative submodel (see Ref. 6) and semiqualitative query is described. The resulting hybrid model represents the optimal trade-off between the accuracy of semiqualitative modelling and the flexibility of qualitative common sense. Hybrid modelling can eliminate many spurious solutions.
A general integration approach is represented by an algorithm which iteratively eliminates impossible qualitative and semiqualitative combinations.
An example (chemical reactor and two-level control system) is used to demonstrate how numbers of, for example, qualitative states (solutions) are decreased by semiqualitative submodels.
Original languageEnglish
Pages (from-to)33-38
JournalReliability Engineering and System Safety
Volume37
Issue number1
DOIs
Publication statusPublished - 1992
MoE publication typeA1 Journal article-refereed

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Chemical reactors
Level control
Control systems

Cite this

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Integration of semiqualitative and qualitative safety models. / Dohnal, Mirko; Koivisto, Raija; Vystrcil, J.

In: Reliability Engineering and System Safety, Vol. 37, No. 1, 1992, p. 33-38.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Koivisto, Raija

AU - Vystrcil, J.

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AB - Integration of a qualitative submodel, qualitative query, semiqualitative submodel (see Ref. 6) and semiqualitative query is described. The resulting hybrid model represents the optimal trade-off between the accuracy of semiqualitative modelling and the flexibility of qualitative common sense. Hybrid modelling can eliminate many spurious solutions. A general integration approach is represented by an algorithm which iteratively eliminates impossible qualitative and semiqualitative combinations. An example (chemical reactor and two-level control system) is used to demonstrate how numbers of, for example, qualitative states (solutions) are decreased by semiqualitative submodels.

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JO - Reliability Engineering and System Safety

JF - Reliability Engineering and System Safety

SN - 0951-8320

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