Assigning Proctors to Exams with Scatter Search
Universitat Pompeu Fabra Economics and Business Working Paper 534
16 Pages Posted: 29 Jun 2001
In this paper we present an algorithm to assign proctors to exams. This NP-hard problem is related to the generalized assignment problem with multiple objectives. The problem consists of assigning teaching assistants to proctor final exams at a university. We formulate this problem as a multiobjective integer program (IP) with a preference function and a workload-fairness function. We then consider also a weighted objective that combines both functions. We develop a scatter search procedure and compare its outcome with solutions found by solving the IP model with CPLEX 6.5. Our test problems are real instances from a University in Spain.
Keywords: Multiobjective combinatorial optimization, metaheuristics, scatter search.
JEL Classification: C61, C63, D83
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