This paper presents an online simulation framework that can be used to support operational decisions within the context of Through-life Engineering Services. Acting as a closed-loop feedback control mechanism, the sim...
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One of the most significant problems in organizational scholarship is to discern how social collectives govern, organize, and coordinate the actions of individuals to achieve collective outcomes. The collectives are u...
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ISBN:
(纸本)9781479939503;9781479920778
One of the most significant problems in organizational scholarship is to discern how social collectives govern, organize, and coordinate the actions of individuals to achieve collective outcomes. The collectives are usually interpreted as complex adaptive systems (CAS). The understanding of CAS is more likely to arise with the help of computer-based simulations. In this tutorial, using agent-based modeling approach, a complex adaptive social communication network model is introduced. The objective is to present the underlying dynamics of the system in a form of computer simulation that enables analyzing the impacts of various mechanisms on network topologies and emergent behaviors. The ultimate goal is to further our understanding of the dynamics in the system and facilitate developing informed policies for decision-makers.
Shipping companies operating with container transportation have the challenge of allocating an amount of ships with specific features (including transport capacity and speed), in a specific route, and meet the demand ...
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ISBN:
(纸本)9781479939503;9781479920778
Shipping companies operating with container transportation have the challenge of allocating an amount of ships with specific features (including transport capacity and speed), in a specific route, and meet the demand in a given period. For such, it is also necessary to make a container fleet available to the customers, which will be removed in the empty warehouse, loaded in the origins and sent to ports to be transported by the ships, in closed cycle, to other terminals that compose the route. This movement is based on a loading matrix of ships. This work presents a simulation model to dimension the quantity of containers required to operate with a ship fleet that attends determined route (in closed loop), and at the same time considers the loading operations of empty containers with customers, on land. It is presented a process of searching for better solutions provides results that minimize container fleet at its disposal.
Many inputs for simulation optimization models are assumed to come from known distributions. When such distributions are obtained from small sample sizes, the parameters of these distributions may be associated with a...
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ISBN:
(纸本)9781479939503;9781479920778
Many inputs for simulation optimization models are assumed to come from known distributions. When such distributions are obtained from small sample sizes, the parameters of these distributions may be associated with an "uncertainty set" or ranges. The presence of this uncertainty means that one or more solutions may be optimal depending on which parameters from the set are used. In this paper, we present a graphical methodology that combines bootstrap sampling and cross-evaluation techniques to visualize the data driven support for alternative solutions for problems in which distribution parameters are estimated using small sample sizes. We illustrate the methodology using a voting machine allocation problem.
This paper presents results of a study conducted jointly with a regional hospital and concerned with inpatient discharge process. In an effort to see what the hospital can do to reduce alternative level of care (ALC) ...
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ISBN:
(纸本)9781479939503;9781479920778
This paper presents results of a study conducted jointly with a regional hospital and concerned with inpatient discharge process. In an effort to see what the hospital can do to reduce alternative level of care (ALC) days (or length of stay, LOS), a simulation model of the discharge planning path was created and validated. The model was used to explore the effects of standardizing parts of the discharge process. The results showed a potential for 4.5 day reduction in the median of LOS. Obtained results indicate that organizational changes (e.g., early involvement of social workers, improved information flow, close collaboration with external facilities accepting patients, etc.) will lead to process improvement and substantial economic benefits.
This paper presents a reconfigurable military simulation framework that reflects behaviors of a C3 system, consisting of command & control (C2) and communication (C). To achieve this goal, this paper identifies mo...
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ISBN:
(纸本)9781479939503;9781479920778
This paper presents a reconfigurable military simulation framework that reflects behaviors of a C3 system, consisting of command & control (C2) and communication (C). To achieve this goal, this paper identifies models in the C3 system and defines the interfaces between the models. In detail, we dispart a C2 simulation framework as three components: the C2, the military unit, and the communication agent model. We also suggest a new metamodel that can represent the dynamic property of the communication simulator. With the enhanced modularity of the C2 system and the new metamodel, users can assess various structures of the C2 system and rapidly calculate the diverse effects of communication. From case studies, we can test the new structure for the C2 system and gain improved performance with regard to speed by using the metamodel. Finally, we expect that this work will help decision makers evaluate various scenarios in a short time.
The process of preparing patients for outpatient surgery is information intensive. However, medical records are often fragmented among different providers and systems. As a result, the preoperative assessment process ...
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This paper proposes a new approach to conduct simulation study of housing market within a mono-centric urban land use framework. In particular, to investigate the non-equilibrium dynamics of housing market, a (preempt...
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ISBN:
(纸本)9781479939503;9781479920778
This paper proposes a new approach to conduct simulation study of housing market within a mono-centric urban land use framework. In particular, to investigate the non-equilibrium dynamics of housing market, a (preemptive) queuing system with priority to search is designed to simulate the population flow. All housing units within the market are differentiated by its location (defined by its distance to central business district (CBD)) and the amenity level associated with the location. Heterogeneity has been introduced into the model through both agents' income level and preference on housing services. The results conclude that the spatial pattern of housing vacancy is not only driven by the distance to CBD, but also by the amenity distribution in the urban area.
The call center industry has expanded greatly over recent years and it is constantly striving to increase business efficiency and customer service effectiveness. Incoming call volume forecasting algorithms are used in...
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ISBN:
(纸本)9781479939503;9781479920778
The call center industry has expanded greatly over recent years and it is constantly striving to increase business efficiency and customer service effectiveness. Incoming call volume forecasting algorithms are used in inbound call centers to predict the demand for services and, as a result, to plan resource allocation. However, a number of phenomena can have an impact on incoming call volumes, meaning that classical forecasting algorithms will produce less than satisfactory results. When evaluating the performance of a forecasting algorithm, acquiring the data needed for research is not always straightforward. This article shows how simulation can be of use to generate data that can be used to evaluate incoming call forecasting algorithms.
With the emergence of free Massive Open Online Courses (MOOCs), online education has been in the headlines in recent years. Many universities are offering online courses, some free and some for pay tied to a degree pr...
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ISBN:
(纸本)9781479939503;9781479920778
With the emergence of free Massive Open Online Courses (MOOCs), online education has been in the headlines in recent years. Many universities are offering online courses, some free and some for pay tied to a degree program. However, the lack of sufficient quality in existing online courses is undeniable. In particular, teaching Modeling and simulation (M&S) as an undergraduate or graduate-level online course poses significant technical challenges for instructors. This paper presents an online learning quality model and discusses such challenges by giving the first author's own free online M&S courseware as an example. The quality model presented provides guidelines for the development of any online course.
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