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软件类型:国外书籍 软件分类:软件概论 授权方式:免费版 界面语言:英文 软件大小:514KB 运行环境:Win9x,NT,2000,XP,2003 软件等级:★★★☆☆ 发布时间:2010-12-28 下载次数:
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Theory of Computation Lecture Notes电子书籍介绍
Theory of Computation Lecture Notes
We first look at the reasons why we must ask this question in the context of the studies on Modeling
and Simulation.
We view a model of an event (or a phenomenon) as a ``list'' of the essential features that characterize
it. For instance, to model a traffic jam, we try to identify the essential characteristics of a traffic
jam. Overcrowding is one principal feature of traffic jams. Yet another feature is the lack of any
movement of the vehicles trapped in a jam. To avoid traffic jams we need to study it and develop
solutions perhaps in the form of a few traffic rules that can avoid jams. However, it would not be feasible
to study a jam by actually trying to create it on a road. Either we study jams that occur by
themselves ``naturally'' or we can try to simulate them. The former gives us ``live'' information, but we
have no way of knowing if the information has a ``universal'' applicability - all we know is that it
is applicable to at least one real life situation. The latter approach - simulation - permits us to
experiment with the assumptions and collate information from a number of live observations so that
good general, universal ``principles'' may be inferred. When we infer such principles, we gain knowledge
of the issues that cause a traffic jam and we can then evolve a list of traffic rules that can avoid traffic jams.
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