Multi-objective particle swarm optimization for repairing inconsistent comparison matrices

Abba Suganda Girsang, Chun Wei Tsai, Chu-Sing Yang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


To repair an inconsistent comparison matrix, two objectives should be minimized, namely the deviation between the original matrix and the modified matrix and the consistency ratio of the modified matrix. However, there will be a conflict if an attempt is made to optimize them together when repairing the inconsistent matrix. This paper proposes a method that uses particle swarm optimization to optimize both objectives when repairing an inconsistent comparison matrix. Some examples of inconsistent matrices are repaired using the proposed method. The results show that the proposed method produces good alternative solutions that satisfy both objectives when repairing inconsistent matrices.

Original languageEnglish
Pages (from-to)101-109
Number of pages9
JournalInternational Journal of Computers and Applications
Issue number3
Publication statusPublished - 2014 Nov 4

All Science Journal Classification (ASJC) codes

  • Software
  • Hardware and Architecture
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design


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