根据测井曲线，运用费歇准则导出了识别砂岩油层大孔道的判别函数，判别函数是测井曲线的线性组合。
In the paper, the discriminant function is derived from the Fisher principle to distinguish large pore paths in sandstone oil layers based on logging curves.
第三章主要讨论了分类器设计过程中的特征空间优化设计问题、分类器设计准则、基本方法和判别函数的知识。
The third chapter mainly introduces characteristic space optimization design, the classification's design criterion, the essential method and the knowledge about knowledge function.
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