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Self organization in a minority game: the rôle of memory and a probabilistic approach

Burgos, E; Ceva, Horacio - In: Physica A: Statistical Mechanics and its Applications 284 (2000) 1, pp. 489-495

A minority game whose strategies are given by probabilities p, is replaced by a ‘simplified’ version that makes no use of memories at all. Numerical results show that the corresponding distribution functions are indistinguishable. A related approach, using a random walk formulation, allows...

Persistent link: https://www.econbiz.de/10010873280

Bit-string models for parasex

Moss de Oliveira, S; de Oliveira, P.M.C; Stauffer, D - In: Physica A: Statistical Mechanics and its Applications 322 (2003) C, pp. 521-530

We present different bit-string models of haploid asexual populations in which individuals may exchange part of their genome with other individuals (parasex) according to a given probability. We study the advantages of this parasex concerning population sizes, genetic fitness and diversity. We...

Persistent link: https://www.econbiz.de/10010874158

Universal mortality law and immortality

Azbel', Mark Ya. - In: Physica A: Statistical Mechanics and its Applications 341 (2004) C, pp. 629-637

Well-protected human and laboratory animal populations with abundant resources are evolutionarily unprecedented. Physical approach, which takes advantage of their extensively quantified mortality, establishes that its dominant fraction yields the exact law, which is universal for all animals...

Persistent link: https://www.econbiz.de/10010874414

Extremum properties of entropy to determine dynamics of growth and evolution in complex systems

Sieniutycz, Stanislaw - In: Physica A: Statistical Mechanics and its Applications 340 (2004) 1, pp. 356-363

. Evolution for animals with multiple organs is considered. A variational problem is that of maximum entropy subject to the …

Persistent link: https://www.econbiz.de/10010874787

Evolutionary community structure discovery in dynamic weighted networks

Guo, Chonghui; Wang, Jiajia; Zhang, Zhen - In: Physica A: Statistical Mechanics and its Applications 413 (2014) C, pp. 565-576

Detecting evolutionary community structure in dynamic weighted networks is important for understanding the structure and functions of networks. In this paper, an algorithm which considers the historic community structure of networks is developed to detect evolutionary community structure in...

Persistent link: https://www.econbiz.de/10010906969

An exploratory analysis on the evolution of the US airport network

Jia, Tao; Qin, Kun; Shan, Jie - In: Physica A: Statistical Mechanics and its Applications 413 (2014) C, pp. 266-279

researchers can benefit from its evolution characteristics. This paper presents an exploratory analysis on the evolution of the US … evolution of the USAN is examined from two perspectives: stable cities that never disappear in the time period and new cities …

Persistent link: https://www.econbiz.de/10010906992

The evolution of communities in the international oil trade network

Zhong, Weiqiong; An, Haizhong; Gao, Xiangyun; Sun, Xiaoqi - In: Physica A: Statistical Mechanics and its Applications 413 (2014) C, pp. 42-52

patterns is necessary for governments in policy making. To study the evolution of trade communities in the international oil …. Two turning points occurred in the evolution of community stability in the international oil trade network. One is the …

Persistent link: https://www.econbiz.de/10010906994

Fractals and self-organized criticality in proteins

Phillips, J.C. - In: Physica A: Statistical Mechanics and its Applications 415 (2014) C, pp. 440-448

, protein binding and potentially protein engineering. The examples studied are evolution of lysozyme c and acylphosphatase, and …

Persistent link: https://www.econbiz.de/10010939960

WDEM: Weighted dynamics and evolution models for energy-constrained wireless sensor networks

Jiang, Nan - In: Physica A: Statistical Mechanics and its Applications 404 (2014) C, pp. 323-331

performance objectives. By introducing the edge weight and vertex strength, we propose two important evolution models for WSNs. We …

Persistent link: https://www.econbiz.de/10010931585

Evolution based on chromosome affinity from a network perspective

Monteiro, R.L.S.; Fontoura, J.R.A.; Carneiro, T.K.G.; … - In: Physica A: Statistical Mechanics and its Applications 403 (2014) C, pp. 276-283

Recent studies have focused on models to simulate the complex phenomenon of evolution of species. Several studies have … been performed with theoretical models based on Darwin’s theories to associate them with the actual evolution of species … present a new model based on the concept of affinity. The model is used to simulate the evolution of species in an ecosystem …

Persistent link: https://www.econbiz.de/10010753632