(2) 偏好依附(Preferential Attachment):假设新结点连接到已有结点 有两种可能的情况,以概率 随机选择 结点建立连接,即选择与 结点相连的可能性为 ;或以概率 按一般...
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偏好性依附 Preferential Attachment
Just in the change process of behavior rule,we find two important conditions of generating Zipf's Law,which are "difference" of agents and "preferential attachment" of behavior rule.
正是在主体行为规则的改变过程中发现了生成Zipf律的两大重要条件,即系统中主体的“差异性”和主体迁移行为的“偏好依附”特性。
参考来源 - 基于agent的城市人口空间迁移模型·2,447,543篇论文数据,部分数据来源于NoteExpress
因此,没有偏好依附无标度网络是不能形成的。
The scale-free networks cannot be formed without preferential attachment in the local events.
当仅在加点或加边过程中考虑偏好依附时,网络是无标度网络。
When preferential attachment is only present in the processes of the addition of new nodes or new links, the networks are scale-free.
尽管生长和偏好依附是形成无标度网络的必需要素,但是这两个因素并不能保证网络一定是无标度网络。
Though growth and preferential attachment are necessary in forming the scale-free networks, the two factors cannot ensure that the network is scale-free.
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