Mechanism Design for Maximum Vectors
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We consider the Maximum Vectors problem in a strategic setting. In the classical setting this problem consists, given a set of k-dimensional vectors, in computing the set of all nondominated vectors. Recall that a vector v=(v^1, v^2, ..., v^k) is said to be nondominated if there does not exist another vector v_*=(v_*^1, v_*^2, ..., v_*^k) such that v^l ≤ v_*^l for 1≤ l≤ k, with at least one strict inequality among the k inequalities. This problem is strongly related to other known problems such as the Pareto curve computation in multiobjective optimization. In a strategic setting each vector is owned by a selfish agent which can misreport her values in order to become nondominated by other vectors. Our work explores under which conditions it is possible to incentivize agents to report their true values using the algorithmic mechanism design framework. We provide both impossibility results along with positive ones, according to various assumptions.
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