In: Intensive Care Medicine, 1998, vol. 24, no. 6, p. 639-640
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In: Molecular Imaging and Biology, 2011, vol. 13, no. 6, p. 1077-1087
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In: Oxford Economic Papers, 2003, vol. 55, no. 1, p. 148-172
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In: Protein Engineering, Design & Selection, 2013, vol. 26, no. 1, p. 81-89
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In: Journal of Plasma Physics, 1988, vol. 40, no. 2, p. 319-336
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Mémoire de bachelor : Haute école de gestion de Genève, 2015 ; TDEE 278.
Since China’s economic reforms in the late 1970s, foreign investments have initially flooded the so-called “first-tier cities” including Shanghai, Beijing, or even Shenzhen or Guangzhou. Due to rising labour costs, growing constraints over natural resources, long-term inflation and environmental issues among others (Zhuang et al. 2012; Zuojun, 2012), they have been undertaking structural...
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In: The European Physical Journal B - Condensed Matter and Complex Systems, 2011, vol. 80, no. 2, p. 201-208
Recommender systems help people cope with the problem of information overload. A recently proposed adaptive news recommender model [M. Medo, Y.-C. Zhang, T. Zhou, Europhys. Lett. 88, 38005 (2009)] is based on epidemic-like spreading of news in a social network. By means of agent-based simulations we study a “good get richer” feature of the model and determine which attributes are...
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In: Europhysics Letters, 2009, vol. 87, p. 68001
By studying the statistics of recurrence intervals, τ, between volatilities of Internet traffic rate changes exceeding a certain threshold q, we find that the probability distribution functions, Pq(τ), for both byte and packet flows, show scaling property as $P_{q}(\tau)=\frac{1}{\overline{\tau}}f(\frac{\tau}{\overline{\tau}})$. The scaling functions for both byte and packet flows obey the...
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In: Physical Review E, 2007, vol. 76, p. 061903
In this paper, we investigate the dynamical properties of electroencephalogram (EEG) signals of humans in sleep. By using a modified random walk method, we demonstrate that scale-invariance is embedded in EEG signals after a detrending procedure is applied. Furthermore, we study the dynamical evolution of the probability density function (PDF) of the detrended EEG signals by nonextensive...
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In: Chinese Physics Letters, 2007, vol. 24, no. 10, p. 3002
We investigate a set of complex heart rate time series from healthy human in different behaviour states with the detrended fluctuation analysis and diffusion entropy (DE) method. It is proposed that the scaling properties are influenced by behaviour states. The memory detected by DE exhibits an approximately same pattern after a detrending procedure. Both of them demonstrate the long-range strong...
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