生物网络的混合模型研究  

The study on the hybrid model for biological networks

作　　者：周辉杰[1] 王明禄[2] 毛小燕 

机构地区：[1]宁波大学科学技术学院,浙江宁波315211 [2]山东轻工业学院机械工程学院,山东济南250100 [3]宁波荣安实验中学,浙江宁波315010

出　　处：《山东轻工业学院学报（自然科学版）》2006年第3期94-97,100,共5页Journal of Shandong Polytechnic University

摘　　要：本文考虑到基因组中基因、调控元件和调控关系等信息的复制是生物进化的主要动力,以及非复制而产生的信息对生物网络增长的影响,通过引入近来提出的无标度网以及完全复制模型和部分复制模型的不足,提出了一种混合模型,并对不同的p、q做了C++程序的模拟和分析,发现网络节点度分布服从幂律分布,而且其幂律衰减指数在(1,2.5)之间,符合大多数生物网络的实证研究结果。In this paper the duplication of the information in the genome -genes, their controlling dements and regulatory relationship-is a central force in biological evolution and non-duplicated information has the effect of developmental processes for biological networks. We develop a hybrid model based on scale-free networks developed just recently and deficiencies in the full duplication model and partial duplication model. And then, we make several simulations and analysis with different p and q values and realize the algorithm by C ＋ ＋ program. The results show the probability that a vertex has k edges following a power law with an exponent between 1 and 2.5. This is in accord with most results of demonstration research for biological networks.

关 键 词：生物网络 无标度网 复制模型 

分 类 号：Q-332[生物学]