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This paper presents a mixed-integer program for the dynamic lot sizing and scheduling problem in a multi-level, single-machine environment. It turns out that in contrast to single-level problems the integration of initial inventory is a crucial aspect if generality should not be lost. It is...
Persistent link: https://www.econbiz.de/10011594606
Cellular automata were used to model and to simulate phenomena in the area of physics, biology and medicine. In this paper it is now shown how the idea of cellular automata can be applied to optimization problems as well. As an example a cellular automaton is used as a basis for solving...
Persistent link: https://www.econbiz.de/10011613734
This contribution presents two heuristic approaches for multi-level, single-machine lot sizing and scheduling. The first one is a variant of a so-called randomized regret based heuristic which is assumed to be the fastest available method for this particular class of problems. The second...
Persistent link: https://www.econbiz.de/10011613745
This contribution deals with dynamic, capacitated, multi-level lot sizing and scheduling. The basic assumption is that for each item there is exactly one machine that this item can be manufactured on but no two items share a common machine. Finding an optimal solution with a greedy algorithm...
Persistent link: https://www.econbiz.de/10011613748
This contribution acquaints the reader with a model for multi-level single-machine proportional lot sizing and scheduling problems (PLSPs) that appear in the scope of short-term production planning. It is one of the first papers that deals with dynamic capacitated multi-level lot sizing and...
Persistent link: https://www.econbiz.de/10011613751
Three types of multi-item capacitated dynamic lotsizing and scheduling models are well established until now: The capacitated lotsizing problem, the discrete lotsizing and scheduling problem as well as the continuous setup lotsizing problem. An analysis of the underlying fundamental assumptions...
Persistent link: https://www.econbiz.de/10011653574
This paper explores a single-item capacitated lot sizing problem with minimum order quantity, which plays the role of minor set-up cost. We work out the necessary and suffcient solvability conditions and apply the general dynamic programming technique to develop an O(T³) exact algorithm that is...
Persistent link: https://www.econbiz.de/10010302566
zunehmender Digitalisierung der Produktion wird die Flexibilisierung fur Industrieunternehmen perspektivisch attraktiver …. * Digitalisierung und Flexibilisierung haben Auswirkungen auf Beschaftigte. So werden bereits jetzt Tatigkeiten an eine Abschaltung von …
Persistent link: https://www.econbiz.de/10012140465
insgesamt bereits als gut vernetzt. Während die mittleren und großen Unternehmen die mit der Digitalisierung verbundenen Chancen … Baden-Wuerttemberg. We show that firms realize a relatively high degree of digitization. This is mainly driven by medium …- and large-sized companies, indicating that small businesses are lagging behind. Despite their low degree of digitization …
Persistent link: https://www.econbiz.de/10011624228
Die vorliegende Studie befasst sich mit Führungskompetenzen für eine erfolgreiche Digitali-sierung. Auf der Basis von … Interviews mit der Führungsebene von Unternehmen unterschied-licher Eigentümerstruktur, Branche, Größe und Digitalisierung …
Persistent link: https://www.econbiz.de/10011985028