Hybridising PCA and BPN for job flow time forecasting in a wafer fabrication factory
Toly Chen · International Journal of Technology Intelligence and Planning · 2011
Principal Component Analysis (PCA) is a multivariate statistical analysis method. This method constructs a series of linear combinations of the original variables to form a new variable, so that these new variables are unrelated to each other as much as possible, to reflect information in a better way. A PCA and Back Propagation Network (PCA–BPN) approach is proposed in this study for forecasting the flow time of a job in a wafer fabrication factory, which is a critical task to the wafer fabrication factory. For evaluating the effectiveness of the proposed methodology, Production Simulation (PS) is also applied in this study to generate some test data.