对近年来关于知识发现的大量相关论文从概念关系辨析、知识发现方法体系、文本挖掘与文本趋势挖掘、非相关文献知识发现、数据挖掘研究拓展等方面开展研究,总结“十一五”期间我国文献情报领域知识发现研究成果,重点介绍有关知识发现的内容分析、关联理论、领域驱动、可视化、文本挖掘模型等研究进展,最后分析展望今后该研究领域的研究热点和研究方向。 A large number of related papers on knowledge discovery in recent years are analyzed from the aspects of concept relation, knowledge discovery method system, text mining and text trend mining, knowledge discovery of non-related documents, data mining research and development, During the period of our country, the research achievements of knowledge discovery in the field of documentary intelligence mainly focus on the content analysis, relevance theory, domain-driven, visualization and text mining model of knowledge discovery. Finally, we analyze the research hot spots and research directions in the future.