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我国大学城集聚经济效应机制探析 被引量:7
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作者 欧雪银 罗能生 《社会科学家》 CSSCI 2008年第2期122-125,共4页
假定我国大学城集聚经济效应的出现,主要是以隐性知识的集聚带动企业或者产业集聚的演化过程,它需要协同创新机制、网络驱动机制、风险投资机制、企业家精神催生机制等集聚经济效应机制的推动。一旦某个分工环节出现脱节,或者某个集聚... 假定我国大学城集聚经济效应的出现,主要是以隐性知识的集聚带动企业或者产业集聚的演化过程,它需要协同创新机制、网络驱动机制、风险投资机制、企业家精神催生机制等集聚经济效应机制的推动。一旦某个分工环节出现脱节,或者某个集聚经济效应机制运转失灵,我国大学城的集聚经济效应都不可能出现。 展开更多
关键词 协同创新机制 网络驱动机制 风险投资机制 企业家精神催生机制
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A Mixed Mechanism of Weighted-Driven and Inner Selection in Networks
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作者 ZHANG Gui-Qing WANG Lin CHEN Tian-Lun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第5期947-953,共7页
For most networks, the weight of connection is changing with their attachment and inner affinity. By introducing a mixed mechanism of weighted-driven and inner selection, the model exhibits wide range power-law distri... For most networks, the weight of connection is changing with their attachment and inner affinity. By introducing a mixed mechanism of weighted-driven and inner selection, the model exhibits wide range power-law distributions of node strength and edge weight, and the exponent can be adjusted by not only the parameter δ but also the probability q. Furthermore, we investigate the weighted average shortest distance, clustering coefficient, and the correlation of our network. In addition, the weighted assortativity coefficient which characterizes important information of weighted topological networks has been discussed, but the variation of coefficients is much smaller than the former researches. 展开更多
关键词 complex network evolving weighted network clustering coefficient weighted assortativity coefficient CORRELATION
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