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Global competition and growing costumer expectations force indus
trial enterprises to reorganize their business processes and to
support cost-effective customer services. Realizing the potential
savings to be gained by exacting customer-delivery processes,
logistics is currently sub ject to incisive changes. This upheaval
aims at making competitive ad vantage from logistic services
instead of viewing them simply as business necessity. With respect
to this focus logistics management comprises the process of
planning, implementing, and controlling the efficient, effective
flow and storage of goods and services, and related information
from point of origin to point of consumption for the purpose of
conforming customer requirements I . This definition implies a
holistic view on the logistic network, where the actors are
suppliers, manufacturers, stock keepers, shipping agents,
distributors, retailers and finally consumers. The flow of goods
along the supply chain considers raw-materials, work-in-process
parts, intermedi ate and finished products, and possibly waste. The
prevailing manage ment of logistics operation is driven by
aggregated forecasting of these material flows. Modern logistics
management propagates a disaggregated view of the material flow in
order to meet the precise requirements at the interface between
actors in the supply chain. Replacing aggregated information by
detailed values establishes the prerequisites for an integrated
process planning which goes for the shift from anticipatory towards
response based logistic81. Smaller units of goods are considered at
shorter periods for planning, implementing and controlling the
material flow. From Icf. the Council of Logistics Management
(1995)."
The conference proceedings contains contributions to the Logistics
Management conference 2019. The objective of the LM conferences is
to discuss new ideas and technical developments related to the
management of logistic systems. A special focus is put on
digitalization of supply chains and decarbonization in the
transport industry.
Global competition and growing costumer expectations force indus
trial enterprises to reorganize their business processes and to
support cost-effective customer services. Realizing the potential
savings to be gained by exacting customer-delivery processes,
logistics is currently sub ject to incisive changes. This upheaval
aims at making competitive ad vantage from logistic services
instead of viewing them simply as business necessity. With respect
to this focus logistics management comprises the process of
planning, implementing, and controlling the efficient, effective
flow and storage of goods and services, and related information
from point of origin to point of consumption for the purpose of
conforming customer requirements I . This definition implies a
holistic view on the logistic network, where the actors are
suppliers, manufacturers, stock keepers, shipping agents,
distributors, retailers and finally consumers. The flow of goods
along the supply chain considers raw-materials, work-in-process
parts, intermedi ate and finished products, and possibly waste. The
prevailing manage ment of logistics operation is driven by
aggregated forecasting of these material flows. Modern logistics
management propagates a disaggregated view of the material flow in
order to meet the precise requirements at the interface between
actors in the supply chain. Replacing aggregated information by
detailed values establishes the prerequisites for an integrated
process planning which goes for the shift from anticipatory towards
response based logistic81. Smaller units of goods are considered at
shorter periods for planning, implementing and controlling the
material flow. From Icf. the Council of Logistics Management
(1995)."
The conference proceedings contains contributions to the Logistics
Management conference 2019. The objective of the LM conferences is
to discuss new ideas and technical developments related to the
management of logistic systems. A special focus is put on
digitalization of supply chains and decarbonization in the
transport industry.
rungs problem en in unterschiedlichen wissenschaftlichen
Disziplinen anwen- deten [Gold89. 1, S. 126-130]. Das
Optimierungsproblem in seiner allgemeinsten Form ist die Aufgabe
Optimiere -+ f (x), XEM, (10) n n mit f als reellwertiger Funktion
des lR und M C lR als Raum aller zulassigen Lasungen. Die
Optimierung beliebiger reeller Funktionen unter Verwendung
Genetischer Algorithmen wurde zuerst in der Dissertation von de
Jong [Jong75] behandelt. Die von ihm experimentell untersuchten
unste- tigen, nichtkonvexen, multimodalen und stochastischen
Funktionen dienen in der Literatur seither als Standardprobleme zur
Validierung genetischer Optimierungsstrategien, siehe etwa [MSB91].
Wird in der Formulierung der Aufgabe (10) zusatzlich die
Ganzzahligkeitsbedingung an die Kompo- nenten der Lasungsvektoren x
gekntipft, so fallt das Problem bekanntlich in den Bereich der
kombinatorischen Optimierung. An einem einfachen Beispiel soll das
konstruktive Paradigma der genetischen Optimierung ein- gefiihrt
werden. Hierzu werden wir eine der Biologie entlehnte begrifHiche
Analogie verwenden, die in Abschnitt 3. 2 zusammenhangend
dargestellt wird. Es sei die Aufgabe 2 Max -+ f(x, y)=x -2xy+y2,
O::: x, y::: k-lmitx, yElN (11) 2 mit k als Zweierpotenz, also z.
B. k = 32, gegeben. Jedes der 32 unter- schiedlichen 2-Tupel,
welche als potentielle Optimallasungen der Aufgabe zur Diskussion
stehen, bezeichnet den Phanotyp einer zulassigen Lasung. Dieser
laBt sich tiber eine Binartransformation in zwei Strings der Lange
log2 k darstellen. x) = ( 25 ) 11 1 0 0 1 I (12) ( y 14 -+ 0 1 1 1
0 Die geordnete Menge binarer Strings definiert den Genotypus einer
Lasung.
Hohe Flexibilitat gegenuber inhomogenen Kundenbedurfnissen,
Kosteneffizienz und eine punktgenaue Lieferfahigkeit gelten als
entscheidende Faktoren im globalen Wettbewerb. Damit kommt der
Entwicklung leistungsfahiger Informationssysteme in der Logistik
wachsende Bedeutung zu. Das Buch bietet eine umfassende Sammlung
und behandelt die Themen ubergreifend.
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