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arXiv 1602.03311math.OC
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两两比较矩阵的有效权向量

Efficient weight vectors from pairwise comparison matrices

Sándor Bozóki, János Fülöp

摘要:

两两比较矩阵是多准则决策中常用的一种方法。如果没有其他权向量在逼近成对比较矩阵的元素方面至少一样好,并且在至少一个位置上严格更好,则称权向量是有效的。一个权向量是弱有效的,如果成对比率不能在所有非对角位置得到改善。我们表明,主特征向量总是弱有效的,但数值例子表明,它可以是无效的。提出的线性规划检验给定的权向量是否是(弱)有效的,在(强)无效的情况下,计算有效的(强)支配权向量.所提出的算法实现成对比较矩阵计算器,可在pcmc.online。

英文摘要:

Pairwise comparison matrices are frequently applied in multi-criteria decision making. A weight vector is called efficient if no other weight vector is at least as good in approximating the elements of the pairwise comparison matrix, and strictly better in at least one position. A weight vector is weakly efficient if the pairwise ratios cannot be improved in all non-diagonal positions. We show that the principal eigenvector is always weakly efficient, but numerical examples show that it can be inefficient. The linear programs proposed test whether a given weight vector is (weakly) efficient, and in case of (strong) inefficiency, an efficient (strongly) dominating weight vector is calculated. The proposed algorithms are implemented in Pairwise Comparison Matrix Calculator, available at pcmc.online.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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