Journal
INTERNATIONAL JOURNAL OF MACHINE LEARNING AND CYBERNETICS
Volume 5, Issue 1, Pages 93-99Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13042-013-0154-8
Keywords
Universal approximation; Polygonal fuzzy neural network; Choquet integral; Fuzzy measure
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Funding
- National Natural Science Foundation of China [61163040, 61261005]
- Science Foundation of Jiangxi Provincial Department of Education [GJJ12323]
- Foundation of East China Jiaotong University [09102018]
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Approximation capabilities are important and primary properties of neural networks and fuzzy neural networks (FNNs). Neural networks have been successfully applied in many fields since they can work as approximators in nature. Many scholars research FNNs' approximation abilities for continuous fuzzy functions. It is concluded that FNNs can work as approximators for continuous fuzzy functions if the fuzzy functions satisfy some specified conditions. However, the problem whether FNNs can work as approximators for discontinuous fuzzy functions is not solved completely until now. In this work, we focus on the approximation of polygonal FNN for discontinuous fuzzy functions in sense of Choquet integral norms. We first introduce the Choquet integral norms in sub-additive fuzzy measure. Then the universal approximation of polygonal FNNs for fuzzy valued functions in sense of Choquet integral norms is analyzed in this paper. It is proved that the polygonal FNNs can work as approximators for fuzzy valued functions in the sense of Choquet integral norms with respect to sub-additive fuzzy measure.
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