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math.OC2017★ 1 cited
Inverse Fractional Knapsack Problem with Profits and Costs Modification
Kien Trung Nguyen, Huynh Duc Quoc
We address in this paper the problem of modifying both profits and costs of a fractional knapsack problem optimally such that a prespecified solution becomes an optimal solution wi…
math.OC2015
The inverse -maxian problem on trees with variable edge lengths
Kien Trung Nguyen
We concern the problem of modifying the edge lengths of a tree in minimum total cost so that the prespecified vertices become the -maxian with respect to the new edge length…