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Reseach Article

Comparison of a Case Study of Uncertainty Propagation using Possibility-Probability Transformation

by Tazid Ali, Palash Dutta, Hrishikesh Boruah
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 35 - Number 11
Year of Publication: 2011
Authors: Tazid Ali, Palash Dutta, Hrishikesh Boruah
10.5120/4450-6219

Tazid Ali, Palash Dutta, Hrishikesh Boruah . Comparison of a Case Study of Uncertainty Propagation using Possibility-Probability Transformation. International Journal of Computer Applications. 35, 11 ( December 2011), 47-54. DOI=10.5120/4450-6219

@article{ 10.5120/4450-6219,
author = { Tazid Ali, Palash Dutta, Hrishikesh Boruah },
title = { Comparison of a Case Study of Uncertainty Propagation using Possibility-Probability Transformation },
journal = { International Journal of Computer Applications },
issue_date = { December 2011 },
volume = { 35 },
number = { 11 },
month = { December },
year = { 2011 },
issn = { 0975-8887 },
pages = { 47-54 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume35/number11/4450-6219/ },
doi = { 10.5120/4450-6219 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:21:45.198337+05:30
%A Tazid Ali
%A Palash Dutta
%A Hrishikesh Boruah
%T Comparison of a Case Study of Uncertainty Propagation using Possibility-Probability Transformation
%J International Journal of Computer Applications
%@ 0975-8887
%V 35
%N 11
%P 47-54
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Uncertainty parameters in risk assessment can be modeled by different ways viz. probability distribution, possibility distribution, belief measure, depending upon the nature and availability of the data. Different transformations exist for converting expression of one form of uncertainty to another form. They differ from one another substantially, ranging from simple ratio scaling to more sophisticated transformation based upon various principles. These transformations should satisfy certain consistency principles. Several researchers viz., Zadeh, Klir, Dubois & Prade have given such type of consistency laws. The weakest consistency rule that any probability-possibility transformation should satisfy is pro(A)≤ pos(A) i.e., probability of any event is less than or equal to possibility of that event. The strongest among such transformation law Pro(A) > 0 Pos(A) =1. Though possibility and probability capture different types of uncertainty, still transformations are used because it is essential in solving many practical problems. In this paper, we reviewed the consistency principles as given by the above authors. Then we have made a comparative case study of uncertainty propagation by three different methods using probability- possibility transformation satisfying consistency conditions.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Uncertainty Risk Assessment Hybrid method Probability-possibility transformation