中文摘要：

随着科学技术的发展和新兴技术领域的出现，技术网络结构也日趋复杂。本文利用德温特创新专利引文索引数据库（DII）的德温特手工代码（DMC）分类标准，探索由专利构成的技术网络结构。基于1971～2010年的所有专利数据，本文采用科学计量学中的共现分析方法、社会网络分析方法和信息可视化技术，建立大型技术共现矩阵，从而构建技术共现网络，绘制技术共现图谱。在此基础上，分析不同领域之间技术发展的联系，识别关键技术领域以及同一领域内的技术发展脉络和技术网络结构。

英文摘要：

As the development of science and technology, the technology network structure is becoming more complex. Using the patent data in Derwent Innovation Index （DII） , this paper analyzes the co -classification network of Derwent Manual Code （DMC） of patents in all technology fields. We record all the patent data in DII from 1970 to 2010. In the proposed approach, large co - classification matrices are employed to generate the DMC co - classification networks. Analysis is pursued at different levels of aggregation, and present more information about the network. As the organizers of patents into classes, this kind of co - classification patterns can visualize the ensemble of all the technological fields in their mutual relations. As a result, we can not only identify the key technological knowledge in certain fields, but also figure out how different technological fields are connected and jointed.