EM-BP Model for Hughes Effect Improvement:An Exampleof Launch Vichle Cost ForecastingChinese Full Text
ZHAO Xue-feng;WU Wei-wei;SHI Hui-ning;ZHANG Heng;School of physics and Telecommunication Engineering,South China Normal University;School of Management,Harbin Institute of Techology;Guangdong University of Foreign Studies;Maanshan University;
Abstract: Small samples, high feature dimensions and more features than samples will lead to large errors in most model analytical results, which is called the Hughes effect.Carrier rocket fund estimation is a typical case.Hughes effect can be effectively reduced by EM-BP model,which is obtained by improving BP neural network by EM algorithm.The model first inputs high-dimensional samples to the input layer.Then EM algorithm extracts low-dimensional neurons based on input neurons and transfers to the hidd... More
- Series:
(A) Mathematics/ Physics/ Mechanics/ Astronomy; (I) Electronic Technology & Information Science; (J) Economics & Management
- Subject:
Automation Technology; Theory of Industrial Economy; Accounting
- Classification Code:
F407.5;TP183;F406.7
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