Abstract
We present a new polynomially solvable case of the Quadratic Assignment Problem in Koopmans–Beckman form QAP(A,B), by showing that the identity permutation is optimal when AA and BB are respectively a Robinson similarity and dissimilarity matrix and one of AA or BB is a Toeplitz matrix. A Robinson (dis)similarity matrix is a symmetric matrix whose entries (increase) decrease monotonically along rows and columns when moving away from the diagonal, and such matrices arise in the classical seriation problem.
Original language | English |
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Pages (from-to) | 103-109 |
Journal | Operations Research Letters |
Volume | 43 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2015 |
Keywords
- quadratic assignment problem
- seriation
- Robinson (dis)similarity
- well solvable special case