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Proceedings Paper

A data prediction method under small sample condition by combining neural network and grey system methods
Author(s): Jihua Fu; Jie Tong; Qian Wang; Zhongyu Wang
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Paper Abstract

Data prediction is one of the key problems for precision measurement and control. The data obtained by measuring system are often limited. To solve the small sample problem, the BP neural network methods are widely used. However, because of too many input factors and complex data training process, the convergence speed of the BP neural network method is slow. To increase the convergence speed, some grey relational analysis methods were introduced into the BP neural network methods. The grey relational coefficients were calculated first. And by sorting the grey relational coefficients, some factors with less relationship were removed form the BP neural network's inputs. Through the preliminary theory and experiment analysis, the data prediction under small sample could be fulfilled in accuracy and with high convergence speed.

Paper Details

Date Published: 26 May 2011
PDF: 6 pages
Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79971E (26 May 2011); doi: 10.1117/12.887370
Show Author Affiliations
Jihua Fu, Institute of Crustal Dynamics (China)
Jie Tong, Beihang Univ. (China)
Qian Wang, Beihang Univ. (China)
Zhongyu Wang, Beihang Univ. (China)


Published in SPIE Proceedings Vol. 7997:
Fourth International Seminar on Modern Cutting and Measurement Engineering

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