A Pareto Local Search (PLS) algorithm was developed and applied tothe screw configuration of co-rotating twin-screw extruders. This problem can beseen as a sequencing problem where a set of different screw elements are to be sequentiallypositioned along the screw in order to maximize the extruder performance.The results obtained were compared with previous results obtained with aMulti-Objective Evolutionary Algorithm (MOEA), which was previously developedby the authors. These results show that the PLS algorithm, despite its conceptualsimplicity, is able to generate screws with good performance.
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