一种基于多因素的BA演化模型  

A BA Evolution Model Based on Multi-factor

作　　者：王筱蕾[1] 刘建华[2] 

机构地区：[1]西安邮电大学计算机学院,西安710121 [2]西安邮电大学信息中心,西安710121

出　　处：《计算机与数字工程》2014年第6期1042-1045,共4页Computer & Digital Engineering

摘　　要：针对BA模型的缺陷以及择优连边的单一性,提出了一种基于多因素的混合连边方式的BA模型,该模型中的节点连接概率由节点的度和节点的PageRank值共同决定,并且引入了随机连接机制。仿真结果显示,该模型的度分布呈幂律分布,通过调节参数值可大范围调节聚类系数,比原始BA模型具有更优的统计特性。For the drawback of the BA model and the oneness of preferential attachment ,a BA model of mixed attach-ment based on multi-factor is proposed .The probability of attachment is decided by nodes＆#39;degree and PageRank value .The random connection mechanism is introduced .The simulation results show that the degree distribution of this model presents power-law distribution .The clustering coefficient has a large range by adjusting the parameter .The proposed model has bet-ter statistical properties than the original BA model does .

关 键 词：BA模型 混合连边 度分布 聚类系数 

分 类 号：O414.2[理学—理论物理]