Measuring Preferential attachment by Poisson Pseudo Maximum Likelihood Method

• 作 者: 陈沛 范正平
• 机 构: 中山大学信息科学与技术学院
• 出 处: 2015第十一届中国网络科学论坛
• 发表日期: 2015年4期
• 关键词: Network Science Preferential attachment Poisson Pseudo Maximum LikelihoodMethod

How to measure Preferential attachment?PDF+LS,CDF+LS,PPML Comparisons of PDF+LS,CDF+LS against PPML Conclusion What is Preferential attachment?Preferential attachment is first used by Barabasi and Albert in1999to describe the phenomenon of"the rich get richer"in network science.Currently widely used methods：Probability distribution function，cumulative distribution function。This approach gives consistent estimationregardless of how the data are in fact distributed, i.e.,they do not need to be Poisson at all, nor even count data.