At present,the similarity calculation method of mathematical exercises mainly uses text information,ignoring mathematical expression information.However,mathematical exercises often contain a large number of mathematical expressions,which makes the existing similarity calculation methods not accurate.In order to improve the accuracy of recommending similar exer-cises,this paper proposes a method combining text and mathematical expression to calculate the similarity of mathematical exercis-es.The method uses tree code to calculate the similarity between mathematical expressions,and combines text information and ex-pression information to calculate the similarity of mathematical exercises,so as to recommend exercises according to top-K.Compar-ing the proposed recommendation method with the text-based recommendation method,the experimental results show that the pro-posed method effectively improves the accuracy of recommendation and is a practical method.
维普
万方数据