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In this paper, the stability problem for some coupled systems with time delay on networks (CSDNs) is investigated. We …
Persistent link: https://www.econbiz.de/10010591458
Astrophysics has become a domain extremely rich of scientific data. Data mining tools are needed for information …
Persistent link: https://www.econbiz.de/10010588690
Social phenomena are affected by the structure of networks consisting of personal relationships. In the present paper … the dynamics is studied. First, several networks are generated using the proposed network model and other network models …, such as the WS model and the KE model. By changing the parameters of the network models, networks with different structures …
Persistent link: https://www.econbiz.de/10010874393
Complex networks have been extensively used to study the topological and dynamical characteristics of transportation … networks representing the structure of traffic flows allows identifying situations in which the probability of appearance of …
Persistent link: https://www.econbiz.de/10010753600
Non-parametric methods such as artificial neural nets can successfully model prices of financial options, out-performing the Black–Scholes analytic model (Eur. Phys. J. B 27 (2002) 219). However, the accuracy of such approaches is usually expressed only by a global fitting/error measure. This...
Persistent link: https://www.econbiz.de/10011058656
Mobile phone datasets allow for the analysis of human behavior on an unprecedented scale. The social network, temporal …
Persistent link: https://www.econbiz.de/10011060482
The participation of a node in more than one community is a common phenomenon in complex networks. However most … define overlapping community in complex networks is proposed, using the overlapping neighborhood ratio to represent relations …. Experimental results in real and artificial networks show, with great accuracy, that the proposed method succeeds to recover most …
Persistent link: https://www.econbiz.de/10011194007
many complex networks. Local contingencies that break this balance can cause a global collapse. These contingencies are …
Persistent link: https://www.econbiz.de/10010588509
The objective of this work is to propose a new methodology to detect the imminence of abrupt changes in the stock market by combining a numerical indicator based on the wavelet decomposition technique with a measure of the interdependency of the markets using graph theory. While the indicator...
Persistent link: https://www.econbiz.de/10010588946
We sketch a subset of Professor F.Y. Wu's contributions in lattice statistical mechanics, solid state physics, graph theory, enumerative combinatorics and other domains of physics and mathematics. We will recall some of F.Y. Wu's most important and well-known classic results and we will also...
Persistent link: https://www.econbiz.de/10010589777