Results 31 to 40 of about 1,278 (116)
Self-organization, resources and strategies in a minority game
, 1999 We find that the existence of self-organization of the members of a recently proposed minority game, depends on the type of update rules used. The resulting resource distribution is studied in some detail, and a related strategy scheme is considered, as ...
Arthur +4 more
core +2 more sources
Scale-Free Network of Earthquakes
, 2003 The district of southern California and Japan are divided into small cubic cells, each of which is regarded as a vertex of a graph if earthquakes occur therein.
Abe, Sumiyoshi, Suzuki, Norikazu
core +3 more sources
Economic exchanges in a stratified society: End of the middle class?
, 2005 We study the effect of the social stratification on the wealth distribution on a system of interacting economic agents that are constrained to interact only within their own economic class.
Bouchaud +17 more
core +1 more source
An Interface View of Directed Sandpile Dynamics
, 2001 We present a directed unloading sand box type avalanche model, driven by slowly lowering the retaining wall at the bottom of the slope. The avalanche propagation in the two dimensional surface is related to the space-time configurations of one ...
A. Ben-Hur +18 more
core +1 more source
Nonlocality-induced front interaction enhancement [PDF]
, 2010 We demonstrate that nonlocal coupling strongly influences the dynamics of fronts connecting two equivalent states. In two prototype models we observe a large amplification in the interaction strength between two opposite fronts increasing front ...
Colet, Pere +5 more
core +3 more sources
Limited profit in predictable stock markets [PDF]
, 2004 It has been assumed that arbitrage profits are not possible in efficient markets, because future prices are not predictable. Here we show that predictability alone is not a sufficient measure of market efficiency.
Barabási +12 more
core +1 more source
Effects of immunization in small-world epidemics [PDF]
, 2001 The propagation of model epidemics on a small-world network under the action of immunization is studied. Although the connectivity in this kind of networks is rather uniform, a vaccination strategy focused on the best connected individuals yields a ...
Kuperman, Marcelo, Zanette, Damian H.
core +1 more source
, 2007 We study an evolutionary algorithm that locally adapts thresholds and wiring in Random Threshold Networks, based on measurements of a dynamical order parameter. A control parameter $p$ determines the probability of threshold adaptations vs. link rewiring.
Bassler K. E. +8 more
core +1 more source
A prognosis oriented microscopic stock market model
, 1999 We present a new microscopic stochastic model for an ensemble of interacting investors that buy and sell stocks in discrete time steps via limit orders based on individual forecasts about the price of the stock.
Bak +10 more
core +2 more sources
Adaptation to the Edge of Chaos in the Self-Adjusting Logistic Map
, 2000 Self-adjusting, or adaptive systems have gathered much recent interest. We present a model for self-adjusting systems which treats the control parameters of the system as slowly varying, rather than constant.
Alfred Hübler +12 more
core +2 more sources