Fisher discriminant analysis model and application of classifying difficulty degree of water infusion for coal seam
Based on Fisher discriminant theory and main factors influencing difficulty degree of water infusion for coal seamsix major difficulty degree of water infusion factors for coal seam such as buried depthcranny viabilityporositywet rim anglesaturation moisture incrementfirm coefficient
of coal were regarded as the discriminant factors of the Fisher discriminant analysis modelDiscriminant functions were obtained through training of fifteen sets of insitu dataeach of the fifteen sets of samples was tested by using resubstitution method according to the Fisher discriminant
methodand the correct rate was equal to 93.3% after the Fisher discriminant analysis was trained.Moreoverthe proposed method was applied and tested in three actual water infusion casesboth the validity and the feasibility were approved.The result is the same or better than the results with
the Fuzzy classification analysis method and neural network method.
Keywords: Fisher discriminant; coal seam water infusion; difficulty degree of water infusion
Document Type: Research Article
Publication date: 15 April 2011
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