专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007092194A2 SYSTEM AND METHOD OF ANALYZING FREEFORM MATHEMATICAL RESPONSES 审中-公开
标题翻译：分析FREEFORM数学反应的系统与方法
公开(公告)号：WO2007092194A2
公开(公告)日：2007-08-16
申请号：PCT/US2007/002388
申请日：2007-01-29
申请人： UNIVERSITY OF UTAH RESEARCH FOUNDATION , LIVNE, Nava, L. , LIVNE, Oren, E. , WIGHT, Charles, A.
发明人： LIVNE, Nava, L. , LIVNE, Oren, E. , WIGHT, Charles, A.
CPC分类号： G09B19/025
摘要： A system and method are provided of analyzing a response expression in a freeform format as entered by a student in response to testing and practice questions presented by a computer system. The method can include parsing the response expression into tokens stored in a response expression tree (810). The system can determine whether the response expression tree is legal based on a defined grammar structure (820). Another operation is comparing a numerical evaluation of the response expression to a numerical evaluation of a reference expression (830). The similarity between the response expression and the reference expression can then be determined by comparing the response expression tree and a reference expression tree (840). Feedback can be supplied to the student regarding the overall correctness of the response expression as compared to the reference expression, based on correctness of each response expression element and the types of errors among response elements (850).
摘要翻译：提供了一种系统和方法，用于响应于计算机系统呈现的测试和实践问题，分析由学生输入的自由格式的响应表达式。该方法可以包括将响应表达式解析为存储在响应表达式树中的令牌（810）。系统可以基于定义的语法结构来确定响应表达式树是否合法（820）。另一个操作是将响应表达式的数值评估与参考表达式的数值评估进行比较（830）。然后可以通过比较响应表达式树和参考表达式树来确定响应表达式和参考表达式之间的相似性（840）。基于每个响应表达元素的正确性和响应元素之间的错误类型（850），可以向学生提供与参考表达式相比的响应表达式的整体正确性的反馈。

IPRDB

热门服务

关于我们

友情链接

联系方式