Journal
FUZZY SETS AND SYSTEMS
Volume 159, Issue 11, Pages 1345-1353Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fss.2007.09.010
Keywords
expected interval; nearest trapezoidal approximation; triangular approximation
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In this paper, an improvement of the nearest trapezoidal approximation operator preserving the expected interval is studied, which proposed by Grzegorzewski and Mrowka. A formula for computing the improved approximation is presented. Moreover, the nearest triangular approximation operator preserving the expected interval is also investigated. (c) 2007 Elsevier B.V. All rights reserved.
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