计算机工程2018，Vol.44Issue(3)：201-207,7.DOI:10.3969/j.issn.1000-3428.2018.03.034
线性代数表达式的索引与匹配方法
Index and Matching Method of Linear Algebraic Expression
摘要
Abstract
Most existing mathematical expression retrieval models are designed for common mathematical expressions,and when they are used to retrieve linear algebraic expression,their effects are poor due to lack of consideration of linear algebraic expression's features.Therefore,a retrieval method for linear algebraic expressions is designed.The improved formula describe structure is used to describe the features of the linear algebraic expressions in LaTeX format.According to the types of linear algebraic expressions,expressions are classified and the corresponding expansion operations are defined,and the index files are built.Four linear algebraic expression matching algorithms are designed to achieve a flexible retrieval mode,and to improve the relevance of the search results.Experimental results show that the proposed method conforms to the retrieval features of linear algebraic expressions,and has a more reasonable index structure,and obtains a higher matching efficiency.关键词
检索方法/线性代数表达式/LaTeX格式/特征分类/扩充运算Key words
retrieval method/linear algebraic expression/LaTeX format/feature classification/expansion operation分类
信息技术与安全科学引用本文复制引用
田学东,王臣..线性代数表达式的索引与匹配方法[J].计算机工程,2018,44(3):201-207,7.基金项目
国家自然科学基金(61375075) （61375075）
河北省高等学校科学技术研究重点项目(ZD2017208). （ZD2017208）
