**章 绪论.........................................................1
1.1 研究背景与问题的提出.................................................................................3
1.2 研究意义.........................................................................................................5
1.3 研究思路与方法.............................................................................................8
1.4 研究内容安排...............................................................................................11
第二章 文献综述....................................................13
2.1 集群相关研究综述.......................................................................................15
2.2 邻近性的研究综述.......................................................................................22
2.3 外部知识获取...............................................................................................38
2.4 现有研究述评...............................................................................................45
2.5 本研究的必要性...........................................................................................47
第三章 主体邻近性与外部知识获取:模型构建与假设....................51
3.1 研究概念的界定...........................................................................................53
3.2 邻近性与超地方网络关系分析...................................................................66