计算机应用与软件2024，Vol.41Issue(4)：251-255,290,6.DOI:10.3969/j.issn.1000-386x.2024.04.038
基于依存句法分析的数学表达式查询扩展方法
MATHEMATICAL EXPRESSION QUERY EXPANSION METHOD BASED ON DEPENDENCY PARSING
摘要
Abstract
Traditional methods of mathematical expression retrieval mainly focus on the two-dimensional structure of expressions.It is difficult to retrieve mathematical expressions with the same semantics but different structures.Aimed at this problem,a mathematical expression query expansion method based on dependency parsing is designed.Based on the retrieval method of formula description structure(FDS)analytical expression structure information,the semantic words in the text surrounding the expression were extracted through the dependency syntax,and the index between operators,expressions,and semantic words was established.Through the second query of the semantic words,the purpose of retrieving mathematical expressions with the same semantics but different structures was realized.The experimental results show that dependency analysis can effectively extract the semantic words of mathematical expressions,and the semantic expression retrieval method is added at the same time,and the recall rate and precision rate are improved to a certain extent.关键词
表达式检索/FDS/依存句法分析/语义词/扩展查询Key words
Expression retrieval/FDS/Dependency parsing/Semantic words/Extended query分类
信息技术与安全科学引用本文复制引用
董斯文,李新福,杨芳,田学东..基于依存句法分析的数学表达式查询扩展方法[J].计算机应用与软件,2024,41(4):251-255,290,6.基金项目
河北省自然科学基金项目(F2019201329) （F2019201329）
河北省高等学校科学技术研究项目(2019131) （2019131）
河北大学一省一校资金支持项目. （）
