图 书 馆
复杂系统中的波动尺度：泰勒定律与超越Fluctuation scaling in complex systems: Taylor's law and beyond |
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| 课程网址: | http://videolectures.net/ephdcs08_kertesz_fsics/ |
| 主讲教师: | János Kertész |
| 开课单位: | 布达佩斯科技经济大学 |
| 开课时间: | 2008-10-15 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Complex systems consist of many interacting elements which participate in some dynamical process. The activity of various elements is often different and the fluctuation in the activity of an element grows monotonically with the average activity. This relationship is generically of the form fluctuations ≈ const.\times average^α, where the exponent α is predominantly in the range [1/2, 1]. This power law has been observed in a very wide range of disciplines, ranging from population dynamics through the Internet to the stock market and it is often treated under the names Taylor's law or fluctuation scaling. We attempt to show how general the above scaling relationship is by surveying the literature, as well as by reporting some new empirical data and model calculations. We also show some basic principles that can underlie the generality of the phenomenon. |
| 关 键 词: | 复杂系统; 经验数据; 模型计算 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-09-21：heyf |
| 阅读次数: | 61 |