Helge Spieker

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An evolving strategy for a multi-stage placement of charging stations for electrical cars is developed. Both an incremental as well as a decremental placement decomposition are evaluated on this Maximum Covering Location Problem. We show that an incremental Genetic Algorithm benefits from problem decomposition effects of having multiple stages and shows(More)
Bariatric surgery is an elective intervention, which is also performed in patients with additional risk factors, e.g. elderly patients over 65 years old, in patients suffering from relevant comorbidities and in patients with a body mass index (BMI) greater than 60 kg/m(2). To reduce the perioperative risks comorbidities require optimal adjustment.(More)
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