期刊文献+

基于多特征模糊模式识别的公式符号关系判定 被引量:6

Identification of relationships between mathematical notations based on multi-features fuzzy pattern recognition
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摘要 数学表达式的识别过程中,结构分析是非常重要的一步。而符号关系的判定又是结构分析的关键。然而符号间关系的不确定性导致数学表达式运算含义的模糊性,已经成为数学公式识别中结构分析的一大难点。通过大量的统计数据,抽取出较为明显的特征,并引入多特征模糊模式识别的方法,建立隶属函数来判断印刷体数学公式符号的关系。实验结果表明,该方法适用范围较广,准确率较高,具有较强的鲁棒性。 Structural analysis is an important step during the recognition process of mathematical expressions.And relationships between symbols is a key of structural analysis.However,the indefinition of the relationships often lead to ambiguity.And it has become difficulty to structural analysis of mathematical expression.This paper extracts visible features,and uses multi-features fuzzy pattern recognition to create subjection function in order to judge the relationship by statistic data.The result shows that this method can be applied in wider scope,its correct-rate is higher,and it is more robust.
出处 《计算机工程与应用》 CSCD 北大核心 2009年第5期186-188,共3页 Computer Engineering and Applications
基金 国家自然科学基金(No.60772073) 河北省科学技术研究与发展计划项目(No.06213598) 河北省教育厅科学研究重点项目(No.ZH2007104)~~
关键词 数学公式识别 结构分析 符号关系 多特征模糊模式识别 mathematical expression recognition structural analysis relationships between symbols multi-features fuzzy pattern recognition
作者简介 田学东(1963-),男,博士,教授,主要研究领域为模式识别与图像处理;E-mail: xdtian@hbu.cn 吴丽红(1982-),女,硕士研究生,主要研究领域为模式识别与图像处理; 赵蕾蕾(1981-),女,硕士研究生,主要研究领域为模式识别与图像处理。
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参考文献7

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二级参考文献25

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