Selecting intervals to optimize the design of observational studies subject to fine balance constraints

Asaf Levin ()
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Asaf Levin: The Technion

Journal of Combinatorial Optimization, 2024, vol. 47, issue 3, No 4, 16 pages

Abstract: Abstract Motivated by designing observational studies using matching methods subject to fine balance constraints, we introduce a new optimization problem. This problem consists of two phases. In the first phase, the goal is to cluster the values of a continuous covariate into a limited number of intervals. In the second phase, we find the optimal matching subject to fine balance constraints with respect to the new covariate we obtained in the first phase. We show that the resulting optimization problem is NP-hard. However, it admits an FPT algorithm with respect to a natural parameter. This FPT algorithm also translates into a polynomial time algorithm for the most natural special cases of the problem.

Keywords: Observational studies; Fine balance constraints; Complexity classification; Algorithms; Matching (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10878-024-01116-y

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