Volume 7 Number 5 (May 2012)
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JCP 2012 Vol.7(5): 1116-1121 ISSN: 1796-203X
doi: 10.4304/jcp.7.5.1116-1121

Testing of Rounded Corner for Micro-Drill on Hybrid of BP Neural Network and Adaptive Particle Swarm Optimization

Wen-Jiang Xiang1, Ying-Zhi Gu1, Dong-Yuan Ge2
1Department of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, P.R. China
2School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, P.R. China


Abstract—A new approach based on hybrid of linear BP neural network and particle swarm optimization algorithm for fitting of micro-drill’s margin projection is proposed. The network is structured according to fitting equation, where sampled point coordinates of micro-drill and their recombination are taken as 6 inputs, and one output is obtained. The square of difference between the output and constant 0 is taken as performance index. The weights between input neurons and output neuron are tuned in the light of gradient descent method. In order to obtain global optimal solution, improved particle swarm optimization algorithm is integrated into the fitting program, where inertia weigh ω is modifying adaptively and mutation operator is carried on to increase the variety of particle dynamically. While the iteration is finish and the desired performance index of BP neural network is reached, thus stable weight values are obtained, according to which expression coefficients of ellipse can be solved. The rounded corner and diameter of the micro-drill can be tested easily. The presented approach provides a new solving method for ellipse fitting with advantages of programming easily and high precision.

Index Terms—BP neural network, particle swarm optimization, micro-dril, margin projection, rounded corner.

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Cite: Wen-Jiang Xiang, Ying-Zhi Gu, Dong-Yuan Ge, "Testing of Rounded Corner for Micro-Drill on Hybrid of BP Neural Network and Adaptive Particle Swarm Optimization," Journal of Computers vol. 7, no. 5, pp. 1116-1121, 2012.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Monthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
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