计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2014年
3期
67-69
,共3页
智能组卷%知识点均匀分布%树形结构%权重
智能組捲%知識點均勻分佈%樹形結構%權重
지능조권%지식점균균분포%수형결구%권중
Intelligent test paper generation%Even distribution of knowledge points%Tree structure%Weight
针对智能组卷中知识点选取难以满足均匀分布且重点突出的问题,通过建立分级的树形结构知识点管理链表,解决知识点线性管理中知识点密度过大或过小的问题,实现知识点的均匀分布。在分级结构中给出了根据二级权重计算一级权重的数学模型,知识点选取时参考权重,构建了带权重的知识点均匀分布选取算法。算法测试结果表明,所选知识点的相关度低,且各权重知识点的选取比例合理,实现了知识点选取均匀分布且重点突出。
針對智能組捲中知識點選取難以滿足均勻分佈且重點突齣的問題,通過建立分級的樹形結構知識點管理鏈錶,解決知識點線性管理中知識點密度過大或過小的問題,實現知識點的均勻分佈。在分級結構中給齣瞭根據二級權重計算一級權重的數學模型,知識點選取時參攷權重,構建瞭帶權重的知識點均勻分佈選取算法。算法測試結果錶明,所選知識點的相關度低,且各權重知識點的選取比例閤理,實現瞭知識點選取均勻分佈且重點突齣。
침대지능조권중지식점선취난이만족균균분포차중점돌출적문제,통과건립분급적수형결구지식점관리련표,해결지식점선성관리중지식점밀도과대혹과소적문제,실현지식점적균균분포。재분급결구중급출료근거이급권중계산일급권중적수학모형,지식점선취시삼고권중,구건료대권중적지식점균균분포선취산법。산법측시결과표명,소선지식점적상관도저,차각권중지식점적선취비례합리,실현료지식점선취균균분포차중점돌출。
Aiming at the problem of the selection of knowledge points in intelligent test paper generation which is hard to be evenly distributed and stood out,by building the hierarchical tree structure knowledge points management list,we solve the problem in knowledge points linear management that the density of knowledge points is too small or too big,realise the even distribution of knowledge points.In hierarchical structure we present a mathematical model which calculates the grade-one weight according to the grade-two weight,the weight is taken as the reference in knowledge points selection,the even distribution selection algorithm of weighted knowledge points has been constructed.Algorithm testing results show that,the relevance of selected knowledge is low,and the selection proportion of knowledge points weight is reasonable,it realises the even distribution of knowledge points selection with the focuses outstood.