A Mathematical Formula Retrieval Method Using Structure Sub-tree

摘要：

　　It is quite inadequate in providing formula retrieval function by traditional retrieval techniques used in full-text information retrieval system.The main reason is that there are many difficulties to extract the keywords of the mathematical formulas.In this paper,a detailed analysis of the structural characteristic(a) of mathematical formulas and existing index mechanism of mathematical formula searching engine is fulfilled.Then a full-text index (named SLIndex) of mathematical formulas with B+ tree structure is designed and implemented which extracts the structured logic sub-tree feature as keywords of formulas and employs inverted index.Finally,a formula seareh engine model based on SLIndex is implemented in Apache 2.0 web server.

关键词： mathematical formulas retrieval full-text retrieval inverted index .B+ tree

作者: Mingjie Guan Xuedong Tian Fang Yang Songqiang Yang

作者单位: College of Mathematics & Computer Science, Hebei University Baoding, China ;Hebei key laboratory of Machine Learning and Computational Intelligence, Hebei University

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer and Information Applications(ICCIA2012)(2012第二届计算机和信息应用国际会议)

会议地点: 太原

会议语种:英文

页码: 583-586

在线出版日期: 2012-12-08（万方平台首次上网日期，不代表论文的发表时间）