Search Results - "Holyst, JA"

Statistical analysis of 22 public transport networks in Poland by Sienkiewicz, Julian, Hołyst, Janusz A

“…Public transport systems in 22 Polish cities have been analyzed. The sizes of these networks range from N = 152 to 2881. Depending on the assumed definition of…”
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Average path length in random networks by Fronczak, Agata, Fronczak, Piotr, Hołyst, Janusz A

“…Analytic solution for the average path length in a large class of uncorrelated random networks with hidden variables is found. We apply the approach to…”
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Ferromagnetic phase transition in Barabási–Albert networks by Aleksiejuk, Agata, Hołyst, Janusz A., Stauffer, Dietrich

“…Ising spins put onto a Barabási–Albert scale-free network show an effective phase transition from ferromagnetism to paramagnetism upon heating, with an…”
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Volatility clustering and scaling for financial time series due to attractor bubbling by Krawiecki, A, Hołyst, J A, Helbing, D

“…A microscopic model of financial markets is considered, consisting of many interacting agents (spins) with global coupling and discrete-time heat bath…”
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Chaos control in economical model by time-delayed feedback method by Hołyst, Janusz A, Urbanowicz, Krzysztof

“…A two-dimensional map describing chaotic behaviour of an economic model has been stabilized on various periodic orbits by the use of Pyragas time-delayed…”
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Modelling collective opinion formation by means of active Brownian particles by SCHWEITZER, F, HOŁYST, J. A

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Phase transitions in social impact models of opinion formation by Hołyst, Janusz A., Kacperski, Krzysztof, Schweitzer, Frank

“…We study phase transitions in models of opinion formation which are based on the social impact theory. Two different models are discussed: (i) a…”
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Phase transitions as a persistent feature of groups with leaders in models of opinion formation by Kacperski, Krzysztof, Hołyst, Janusz A.

“…A class of models of opinion formation based on the concept of cellular automata and the theory of social impact is studied, in particular the case when a…”
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Stochastic resonance as a model for financial market crashes and bubbles by Krawiecki, A., Hołyst, J.A.

“…A bistable model of a financial market is considered, aimed at modelling financial crashes and bubbles, based on the Ising model with thermal-bath dynamics and…”
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Mean-field theory for clustering coefficients in Barabási-Albert networks by Fronczak, Agata, Fronczak, Piotr, Hołyst, Janusz A

“…We applied a mean-field approach to study clustering coefficients in Barabási-Albert (BA) networks. We found that the local clustering in BA networks depends…”
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Universal scaling of distances in complex networks by Hołyst, Janusz A, Sienkiewicz, Julian, Fronczak, Agata, Fronczak, Piotr, Suchecki, Krzysztof

“…Universal scaling of distances between vertices of Erdos-Rényi random graphs, scale-free Barabási-Albert models, science collaboration networks, biological…”
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Higher order clustering coefficients in Barabási–Albert networks by Fronczak, Agata, Hołyst, Janusz A, Jedynak, Maciej, Sienkiewicz, Julian

“…Higher order clustering coefficients C( x) are introduced for random networks. The coefficients express probabilities that the shortest distance between any…”
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Fluctuation-dissipation relations in complex networks by Fronczak, Agata, Fronczak, Piotr, Hołyst, Janusz A

“…In this paper, we study fluctuations over several ensembles of maximum-entropy random networks. We derive several fluctuation-dissipation relations…”
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Opinion formation model with strong leader and external impact: a mean field approach by Kacperski, Krzysztof, Hoł yst, Janusz A.

“…We study a model of opinion formation based on the theory of social impact and the concept of cellular automata. The case is considered when two strong agents…”
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A simple model of bank bankruptcies by Aleksiejuk, Agata, Hołyst, Janusz A.

“…Interbank deposits (loans and credits) are quite common in banking system all over the world. Such interbank co-operation is profitable for banks but it can…”
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Voter model on Sierpinski fractals by Suchecki, Krzysztof, Hołyst, Janusz A.

“…We investigate the ordering of voter model on fractal lattices: Sierpinski Carpets and Sierpinski Gasket. We obtain a power-law ordering in all cases, but the…”
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Observations of deterministic chaos in financial time series by recurrence plots, can one control chaotic economy? by HOŁYST, J. A, ZEBROWSKA, M, URBANOWICZ, K

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Anti-deterministic behaviour of discrete systems that are less predictable than noise by Urbanowicz, Krzysztof, Kantz, Holger, Holyst, Janusz A.

“…We present a new type of deterministic dynamical behaviour that is less predictable than white noise. We call it anti-deterministic (AD) because time series…”
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Scaling of distances in correlated complex networks by Hołyst, Janusz A., Sienkiewicz, Julian, Fronczak, Agata, Fronczak, Piotr, Suchecki, Krzysztof

“…The influence of node–node degree correlations on distances in complex networks has been studied. We have found that even the presence of strong correlations…”
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Estimation of a noise level using coarse-grained entropy of experimental time series of internal pressure in a combustion engine by Litak, Grzegorz, Taccani, Rodolfo, Radu, Robert, Urbanowicz, Krzysztof, Hołyst, Janusz A., Wendeker, Mirosław, Giadrossi, Alessandro

“…We report our results on non-periodic experimental time series of pressure in a single cylinder spark ignition engine. The experiments were performed for…”
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