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- Jan W. Kantelhardt, Stephan A. Zschiegner, +4 authors Jochen Kantelhardt

We develop a method for the multifractal characterization of nonstationary time series, which is based on a generalization of the detrended $uctuation analysis (DFA). We relate our multifractal DFAâ€¦ (More)

- Ary L. Goldberger, Luis A. N. Amaral, Jeffrey M. Hausdorff, Plamen Ch. Ivanov, Chung-Kang Peng, H. Eugene Stanley
- Proceedings of the National Academy of Sciencesâ€¦
- 2002

According to classical concepts of physiologic control, healthy systems are self-regulated to reduce variability and maintain physiologic constancy. Contrary to the predictions of homeostasis,â€¦ (More)

The size distribution of business firms is explained using number and size of firms' constituent components. It is a lognormal distribution multiplied by a stretching factor which can lead to aâ€¦ (More)

- Maksim Kitsak, Lazaros K. Gallos, +4 authors HernÃ¡n A. Makse
- 2010

Networks portray a multitude of interactions through which people meet, ideas are spread and infectious diseases propagate within a society1â€“5. Identifying the most efficient â€˜spreadersâ€™ in a networkâ€¦ (More)

- Vasiliki Plerou, P. Gopikrishnan, Bernd Rosenow, Luis A. Nunes Amaral, Thomas Guhr, H. Eugene Stanley
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2002

We analyze cross correlations between price fluctuations of different stocks using methods of random matrix theory (RMT). Using two large databases, we calculate cross-correlation matrices C ofâ€¦ (More)

- Andrew M Edwards, Richard Phillips, +8 authors Gandhimohan M. Viswanathan
- Nature
- 2007

The study of animal foraging behaviour is of practical ecological importance, and exemplifies the wider scientific problem of optimizing search strategies. LÃ©vy flights are random walks, the stepâ€¦ (More)

- Xavier Gabaix, P. Gopikrishnan, Vasiliki Plerou, H. Eugene Stanley
- Nature
- 2003

Insights into the dynamics of a complex system are often gained by focusing on large fluctuations. For the financial system, huge databases now exist that facilitate the analysis of largeâ€¦ (More)

- Xavier Gabaix, P. Gopikrishnan, +24 authors Jeffrey Wurgler
- 2006

We present a theory of excess stock market volatility, in which market movements are due to trades by very large institutional investors in relatively illiquid markets. Such trades generateâ€¦ (More)

- Ivo Grosse, Pedro Bernaola-GalvÃ¡n, Pedro Carpena, RamÃ³n RomÃ¡n-RoldÃ¡n, JosÃ© Oliver, H. Eugene Stanley
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2002

We study statistical properties of the Jensen-Shannon divergence D, which quantifies the difference between probability distributions, and which has been widely applied to analyses of symbolicâ€¦ (More)

Complex networks appear in almost every aspect of science and technology. Although most results in the field have been obtained by analysing isolated networks, many real-world networks do in factâ€¦ (More)