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作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:In the previous chapter, we noted that one of the basic characteristics of systems is that system structure is the source of system behavior. In this chapter, we focus on the practical mechanics of representing system structure, and on how system behavior is related to system str...
作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:The goal of Phase II of the simulation modeling processes is to develop a quantitative model of the system-of-interest. Using the conceptual model as a template for this quantitative development, we describe the rules governing the flow of materials in the model (the dynamics of ...
作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:The goal of Phase III of the simulation modeling process is to evaluate the model in terms of its relative usefulness for a specific purpose. A model that is very useful for one purpose might be useless or, worse, misleading for another purpose. Most commonly, this process i...
作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:In this chapter, we point out some of the pitfalls that are commonly encountered during the model development process. Although many, if not most, of these pitfalls may sound almost trivially silly when put into words, we find ourselves continually pointing them out to begin...
作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:Why do we model ecological systems? Why do we model any system? Most often, we use simulation models, the focus of this book, to try to predict the future. Perhaps the most familiar everyday example of such use is to simulate weather patterns to try to answer the question “w...
作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:In this chapter, we reflect upon the commonalities among several alternative quantitative ecological modeling formats from a systems perspective. These include matrix models, network models, and individual-/agent-based models. At first glance, these alternative formats differ mar...
作者:Hsiao-Hsuan Wang , William E. Grant
来源:[B].Developments in Environmental Modelling2019Elsevier
摘要:The goal of the final phase of the simulation modeling process is to meet the objectives that were identified at the beginning of the modeling project. Most often, we wish to use the model to simulate system dynamics under alternative management strategies or environmental situat...

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