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FUZZY PREDICTION STRATEGIES FOR GENE-ENVIRONMENT NETWORKS - FUZZY REGRESSION ANALYSIS FOR TWO-MODAL REGULATORY SYSTEMS
Date
2016-04-01
Author
Kropat, Erik
Ozmen, Ayse
Weber, Gerhard Wilhelm
Meyer-Nieberg, Silja
DEFTERLİ, ÖZLEM
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Target-environment networks provide a conceptual framework for the analysis and prediction of complex regulatory systems such as genetic networks, eco-finance networks or sensor-target assignments. These evolving networks consist of two major groups of entities that are interacting by unknown relationships. The structure and dynamics of the hidden regulatory system have to be revealed from uncertain measurement data. In this paper, the concept of fuzzy target-environment networks is introduced and various fuzzy possibilistic regression models are presented. The relation between the targets and/or environmental entities of the regulatory network is given in terms of a fuzzy model. The vagueness of the regulatory system results from the (unknown) fuzzy coefficients. For an identification of the fuzzy coefficients' shape, methods from fuzzy regression are adapted and made applicable to the bi-level situation of target-environment networks and uncertain data. Various shapes of fuzzy coefficients are considered and the control of outliers is discussed. A first numerical example is presented for purposes of illustration. The paper ends with a conclusion and an outlook to future studies.
Subject Keywords
Fuzzy evolving networks
,
Fuzzy target-environment networks
,
Uncertainty
,
Fuzzy theory
,
Fuzzy regression analysis
,
Possibilistic regression
,
Forecasting
URI
https://hdl.handle.net/11511/57454
Journal
RAIRO-OPERATIONS RESEARCH
DOI
https://doi.org/10.1051/ro/2015044
Collections
Graduate School of Applied Mathematics, Article