专利信息是当前知识经济时代最重要的战略资源之一。然而,传统的基于关键词的专利信息简单布尔检索所得的检索结果较粗糙不能满足专利分析人员的要求。本研究结合了局部分析法和领域本体的概念对初始检索表达式进行检索扩展,使得扩展后的检索表达式更加准确、全面地满足用户检索要求,以提高专利信息检索的效率。通过实验表明,该方法能在保障查准率的基础上有效提高检索的查全率和F指标。
Patents are most valuable strategic resources in nowadays knowledge economic age. However, traditional keyword-based patent information retrieval is too rough to meet patent analyst's demand. To fully express user' s search intention and enhance efficiency of patent information retrieval, the expanded retrieval is combined local analyze context and domain ontology. Finally, experiment shows that this ap- proach could efficiently improve the recall and F-measure under an unchanged precision situation.