【摘要】 以生物医药公司年度报告为载体,设计了一种基于领域本体的信息抽取方法获取药品研发信息。首先依据药品研发固有的基本流程构建了领域本体词典,在对样本文档进行预处理的基础上介绍了时间词和否定词的处理;然后基于映射原理并结合触发机制、继承机制和选择机制,抽取并规范化药品研发信息;最后对抽取结果进行了查准率和查全率分析,证明了信息抽取方法的有效性。更多还原

【Abstract】 Taking annual report as a carrier,this paper proposes an information extraction method for biological companies’ drugs R&D information based on domain ontology.First,the domain ontology dictionaries according to the basic process of drugs R&D is constructed and the process of times words and negative words after preprocessing the sample PDF documents is introduced in detail.Then,extracting and normalizing drugs R&D information are done by using mapping principle as well as trigger,inheritance,and selection mechanisms.Finally,computing precision ratio and recall ratio based on the results of information extraction proves the validity of the method.更多还原