网络环境下的多模态在线教学平台设计

Design of Multimodal Online Teaching Platform in Network Environment

在日常教育中,网络教学的比重逐渐增加,教学平台的使用效果成为影响网络教育效果的主要因素。当前多模态在线教学平台由于教学资源管理能力较差,时常出现用户等待时间过长的问题。针对此问题,设计网络环境下的多模态在线教学平台。选择互信息技术,完成文本信息的提取工作。根据教学资源处理结果,选择马尔科夫链实现教学资源的分发与传输。使用余弦相似法,对教学资源进行协同过滤,实现用户查询内容的高效输出。至此,网络环境下的多模态在线教学平台设计完成。构建应用测试环节,经测试结果证实:新型教学平台的用户业务处理等待时间明显缩短,查询结果输出内容与查询内容较为一致。

The proportion of network teaching in daily education is gradually increasing,and the use effect of teaching platform has become the main factor affecting network teaching.Due to the poor ability of teaching resource management,the current multimodal online teaching platform often has the problem of long waiting time.To solve this problem,a multimodal online teaching platform under the network environment is designed.We select mutual information technology to complete the extraction of text information.According to the processing results of teaching resources,Markovian chain is selected to realize the distribution and transmission of teaching resources.Using cosine similarity method,collaborative filtering of teaching resources is carried out to achieve efficient output of user query content.So far,the design of multimodal online teaching platform under the network environment is completed.The test results show that the waiting time of user business processing of the new teaching platform is significantly shortened,and the output content of the query results is consistent with the query content.