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This paper reviews four aspects of fuzzy sets, namely, the general framework, the role of expert judgement, mathematical and computational aspects, and present applications. Fuzzy-set theory is applied to simplified problems in radionuclide migration, with comparisons between fuzzy and probabilistic approaches, treated both analytically and computationally. A new approach to fuzzy differential equations is presented, and applied to simple ordinary and partial differential equations. It is argued that such fuzzy techniques represent a viable alternative to probabilistic risk assessment, for handling systems subject to uncertainties.

Additional information

Authors: SHAW W, Environmental Sciences Department, Intera-Ecl, Henley-on-Thames (GB);GRINDROD P, Environmental Sciences Department, Intera-Ecl, Henley-on-Thames (GB)
Bibliographic Reference: EUR 12499 EN (1989) 74 pp., FS, ECU 7.50
Availability: (2)
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