Application problems can often not be solved adequately by numerical algorithms as several difficulties might arise at the same time. When developing and improving algorithms which hopefully allow to handle those difficulties in the future, good test instances are required. These can then be...

The hospitality and tourism industry is witnessing unprecedented growth, driven by a relentless pursuit of service excellence and customer satisfaction. In this dynamic landscape, meeting and exceeding customer expectations has become paramount. Customers not only wield significant influence in...