摘要
Abstract
The massive digital resources contain rich, valuable knowledge, and how to use these knowledge effectively and solve the contradiction between the overload of information and the lack of knowledge, has become the focus of academic research. Firstly, this paper discussed the meaning of knowledge extraction, and then conducted an investigation and analysis of the domestic and foreign related research status from the two aspects of implementation method and technology of knowledge extraction, and practice in knowledge extraction. And we think that the future research of knowledge extraction will focus on the study with the scientific literature as the main research object, the study of knowledge extraction technique based on ontology and the semantic model, to construct the adaptive and transplantation knowledge extraction system based on users’needs.关键词
知识抽取/研究现状/研究重点Key words
knowledge extraction/research status/research focus分类
信息技术与安全科学
