关键词: 综合评价, 评价指标, 异常值, 无量纲化

Abstract: For the dimensionless problem of comprehensive evaluation index, the existing methods although take the actual requirements into account, they lack the consideration of outliers, which may lead to the wrong evaluation result because of certain evaluation value. For this, provides an improved dimensionless method based on normal interval estimation, provides the definition rules and disposing rules of outliers through normal interval estimation method to discern and correct their value, and makes the evaluation values dimensionless through standard dimensionless methods to improve the distinction between them. Numerical example and analysis show that the method is feasible and effective.

Key words: comprehensive evaluation, evaluation index, outlier, dimensionless