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Koczkodaj, W. W., Herman, M. W., & Orlowski, M. (1999). Managing null entries in pairwise comparisons. Knowledge and Information Systems, 1(1), 119–125. 
Added by: Klaus D. Goepel (10 Jun 2019 00:41:42 Asia/Singapore)   Last edited by: Klaus D. Goepel (10 Jun 2019 00:44:06 Asia/Singapore)
Resource type: Journal Article
DOI: 10.1007/BF03325094
BibTeX citation key: Koczkodaj1999
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Categories: Decision Making
Keywords: incomplete pairwise comparison matrix, missing entry, missing judgment estimation, multi-criteria decision-making
Creators: Herman, Koczkodaj, Orlowski
Publisher: Springer
Collection: Knowledge and Information Systems
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This paper shows how to manage null entries in pairwise comparisons matrices. Although assessments can be imprecise, since subjective criteria are involved, the classical pairwise comparisons theory expects all of them to be available. In practice, some experts may not be able (or available) to provide all assessments. Therefore managing null entries is a necessary extension of the pairwise comparisons method. It is shown that certain null entries can be recovered on the basis of the transitivity property which each pairwise comparisons matrix is expected to satisfy.
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