中文摘要：

科技监测方法与技术可以为科学技术活动的动态监测、分析及评估提供有力支持。随着科技创新环境与关联要素的日益多元化和动态复杂化，如何从海量文献中找到科技创新突破口、发掘潜在研究价值，成为科技监测发挥重要作用的基础。针对现有科技监测方法中存在的主题表达简单与文本加工方法受限于技术处理制约等问题，本文将主题模型方法引入到科技监测中，提出基于主题模型的科技监测的构建思路与结构。并深入探索该方法应用的三个核心构成——主题强度度量、主题演化判定、衍生应用的内涵与模式等。最后，以科技报告为数据来源、以“微波功率放大器”为研究领域，进行实验研究与结果分析，实验结果显示了所提方法的应用的可解释性与有效性。

英文摘要：

Science and technology monitoring can provide strong support for dynamic monitoring, analysis and evaluation of scientific and technical activities. With the increasingly diversity and dynamic eomplexity of the innovation environment and elements of technology, how to find a breakthrough in technological innovation and explore the potential value of research, become the basis for science and technology. These problems of science and technology monitoring, such as topic express simplify, the method of text processing is limited by the technical processing constraints and other issues, so this paper introduces topic model to the science and technology monitoring, and proposes the ideas and structure of technology monitoring methods based on the topic model. Then core components of the application of the method are deeply explored the connotation and mode of the topic intensity, the topic evolution and the derivative applications. Finally, taking technology report as the source of data and ＂ the microwave power amplifier＂ as the field of study, this paper carries on experimental study and analysis of results, and the experimental results show that the application of the proposed method is interpretable and effeetive.